diff --git a/.changeset/fix-main-import-reference.md b/.changeset/fix-main-import-reference.md
new file mode 100644
index 0000000..e25ed9c
--- /dev/null
+++ b/.changeset/fix-main-import-reference.md
@@ -0,0 +1,7 @@
+---
+"vue-pivottable": patch
+---
+
+Fix main.ts import reference issue and optimize memory usage
+
+Fixed undefined SimpleApp reference to use App component in main.ts entry point. This resolves runtime errors and improves application startup reliability.
\ No newline at end of file
diff --git a/.changeset/fix-vue-pivottable-props-issue.md b/.changeset/fix-vue-pivottable-props-issue.md
new file mode 100644
index 0000000..8dea59f
--- /dev/null
+++ b/.changeset/fix-vue-pivottable-props-issue.md
@@ -0,0 +1,14 @@
+---
+"vue-pivottable": patch
+---
+
+Fix VuePivottable component props and type issues
+
+- Fix "Cannot read properties of undefined" error when using VuePivottable without VuePivottableUi
+- Remove unnecessary composables export from main index to prevent VuePivottableUi code execution
+- Make aggregatorName, renderers, rendererName optional in DefaultPropsType with proper defaults  
+- Add proper default values in VPivottable component
+- Fix TSVExportRenderers to handle undefined aggregatorName
+- Resolve Vue warning messages for missing required props
+
+This ensures VuePivottable can be used independently without requiring VuePivottableUi-specific props.
\ No newline at end of file
diff --git a/.github/workflows/integrate-develop.yml b/.github/workflows/integrate-develop.yml
index 841ac8c..912ae3b 100644
--- a/.github/workflows/integrate-develop.yml
+++ b/.github/workflows/integrate-develop.yml
@@ -90,7 +90,7 @@ jobs:
             echo "- **Auto-generated**: This PR was automatically created by the integration workflow"
             echo ""
             echo "### 📝 Recent Commits"
-            echo "${{ steps.commit-info.outputs.commits }}"
+            echo "${{ steps.commit-info.outputs.commits }}" | sed 's/%0A/\n/g; s/%0D//g; s/%25/%/g'
             echo ""
             echo "### 🔍 What happens next?"
             echo "1. Review the changes in this PR"
diff --git a/PIVOT_MODEL_FEATURE_DEVELOPMENT.md b/PIVOT_MODEL_FEATURE_DEVELOPMENT.md
deleted file mode 100644
index 071591f..0000000
--- a/PIVOT_MODEL_FEATURE_DEVELOPMENT.md
+++ /dev/null
@@ -1,841 +0,0 @@
-# PivotModel 양방향 바인딩 기능 개발 문서
-
-## 개요
-
-본 문서는 vue3-pivottable의 PivotModel 양방향 바인딩 기능 개발에 대한 상세한 분석과 구현 방향을 제시합니다. 현재 VPivottableUi 컴포넌트에서 사용자가 UI를 통해 피벗테이블의 상태를 변경했을 때, 부모 컴포넌트에서 이러한 변경사항을 추적할 수 없는 문제를 해결하는 것이 목표입니다.
-
-## 현재 상황 분석
-
-### 1. 기존 코드 현황
-
-#### 1.1 pivotModel prop 정의
-- **위치**: `src/components/pivottable-ui/VPivottableUi.vue` 157번째 줄
-- **정의**: `pivotModel?: any`
-- **기본값**: `() => ({})`
-- **상태**: 정의되어 있으나 실제로 사용되지 않음
-
-#### 1.2 상태 관리 구조
-```typescript
-// usePropsState composable에서 관리되는 상태
-interface PropsState {
-  rows: string[]              // 행 필드
-  cols: string[]              // 열 필드
-  vals: string[]              // 값 필드
-  aggregatorName: string      // 집계 함수명
-  rendererName: string        // 렌더러명
-  valueFilter: Record<string, any>  // 필터 상태
-  rowOrder: string            // 행 정렬 순서
-  colOrder: string            // 열 정렬 순서
-  heatmapMode: string         // 히트맵 모드
-  // 기타 props...
-}
-```
-
-#### 1.3 이벤트 처리 현황
-- **하위 컴포넌트들**: 모두 emit을 통해 상위로 이벤트 전달
-  - `VAggregatorCell`: `update:aggregator-name`, `update:vals` 등
-  - `VRendererCell`: `update:renderer-name`
-  - `VDragAndDropCell`: `update:dragged-attribute`
-- **VPivottableUi**: emit 정의 없음 → 상태 변경이 부모 컴포넌트로 전달되지 않음
-
-### 2. 문제점 식별
-
-#### 2.1 핵심 문제
-1. **단방향 데이터 흐름만 지원**: 부모 → 자식 방향만 가능
-2. **상태 변경 추적 불가**: UI 변경사항을 부모에서 감지할 수 없음
-3. **사용자 상호작용 손실**: 드래그앤드롭, 필터링, 정렬 등의 변경사항이 부모에게 알려지지 않음
-
-#### 2.2 실제 사용 시나리오의 문제
-```vue
-<!-- 현재 불가능한 사용법 -->
-<template>
-  <VPivottableUi
-    v-model:pivot-model="myPivotModel"
-    :data="data"
-    @change="handlePivotChange"
-  />
-</template>
-
-<script setup>
-// 사용자가 UI에서 변경해도 myPivotModel이 업데이트되지 않음
-const myPivotModel = ref({
-  rows: ['category'],
-  cols: ['date'],
-  vals: ['amount']
-})
-
-// 이 핸들러가 호출되지 않음
-const handlePivotChange = (model) => {
-  console.log('변경된 피벗 모델:', model)
-  // 로컬스토리지 저장, 서버 동기화 등 불가능
-}
-</script>
-```
-
-## 기술적 분석
-
-### 1. Vue 3 v-model 구현 요구사항
-
-#### 1.1 v-model 패턴
-```typescript
-// v-model:pivot-model을 위한 emit 정의
-const emit = defineEmits<{
-  'update:pivotModel': [model: PivotModelInterface]
-}>()
-```
-
-#### 1.2 양방향 바인딩 흐름
-```
-부모 컴포넌트 → VPivottableUi (props)
-     ↑                    ↓
-  emit 이벤트 ← usePropsState (상태 변경)
-```
-
-### 2. 타입 시스템 설계
-
-#### 2.1 PivotModel 인터페이스 정의
-```typescript
-interface PivotModelInterface {
-  // 핵심 구조 필드
-  rows: string[]              // 행으로 사용할 필드들
-  cols: string[]              // 열로 사용할 필드들
-  vals: string[]              // 집계할 값 필드들
-  
-  // 렌더링 옵션
-  aggregatorName: string      // 집계 함수명 (Sum, Count, Average 등)
-  rendererName: string        // 렌더러명 (Table, Table Heatmap 등)
-  heatmapMode?: string        // 히트맵 모드 ('full', 'row', 'col', '')
-  
-  // 필터링 및 정렬
-  valueFilter: Record<string, string[]>  // 각 필드별 필터된 값들
-  rowOrder: 'key_a_to_z' | 'value_a_to_z' | 'value_z_to_a'  // 행 정렬 순서
-  colOrder: 'key_a_to_z' | 'value_a_to_z' | 'value_z_to_a'  // 열 정렬 순서
-  
-  // 메타데이터
-  timestamp?: number          // 마지막 변경 시간
-  version?: string           // 모델 버전
-}
-```
-
-#### 2.2 상태 변경 타입
-```typescript
-type PivotModelChangeEvent = {
-  type: 'field-move' | 'aggregator-change' | 'renderer-change' | 'filter-change' | 'sort-change'
-  field?: string
-  from?: string
-  to?: string
-  oldValue?: any
-  newValue?: any
-  timestamp: number
-}
-```
-
-### 3. 구현 아키텍처
-
-#### 3.1 컴포넌트 레이어
-```
-VPivottableUi (emit 추가)
-    ↓
-usePropsState (emit 통합)
-    ↓
-개별 상태 변경 메서드들 (emit 호출)
-```
-
-#### 3.2 상태 동기화 전략
-1. **즉시 동기화**: 모든 상태 변경 시 즉시 emit
-2. **debounce 적용**: 연속적인 변경에 대해 지연 처리
-3. **diff 체크**: 실제 변경된 부분만 emit
-
-## 구현 계획
-
-### Phase 1: 기본 구조 구축 (우선순위: 높음)
-
-#### 1.1 타입 정의 추가
-```typescript
-// src/types/index.ts에 추가
-export interface PivotModelInterface {
-  rows: string[]
-  cols: string[]
-  vals: string[]
-  aggregatorName: string
-  rendererName: string
-  valueFilter: Record<string, string[]>
-  rowOrder: string
-  colOrder: string
-  heatmapMode?: string
-}
-```
-
-#### 1.2 VPivottableUi emit 정의
-```typescript
-// src/components/pivottable-ui/VPivottableUi.vue
-const emit = defineEmits<{
-  'update:pivotModel': [model: PivotModelInterface]
-  'change': [model: PivotModelInterface]
-}>()
-```
-
-#### 1.3 usePropsState 수정
-```typescript
-// src/composables/usePropsState.ts
-export function usePropsState<T extends UsePropsStateProps>(
-  initialProps: T,
-  emit?: (event: string, payload: any) => void  // emit 함수 추가
-) {
-  // 기존 코드...
-  
-  const emitPivotModel = () => {
-    if (!emit) return
-    
-    const model: PivotModelInterface = {
-      rows: state.rows,
-      cols: state.cols,
-      vals: state.vals,
-      aggregatorName: state.aggregatorName,
-      rendererName: state.rendererName,
-      valueFilter: state.valueFilter,
-      rowOrder: state.rowOrder,
-      colOrder: state.colOrder,
-      heatmapMode: state.heatmapMode
-    }
-    
-    emit('update:pivotModel', model)
-    emit('change', model)
-  }
-  
-  // 각 update 메서드에서 emitPivotModel 호출
-  const onUpdateRendererName = (rendererName: string) => {
-    updateState('rendererName' as keyof T, rendererName)
-    // 기존 히트맵 모드 로직...
-    emitPivotModel()
-  }
-  
-  // 다른 메서드들도 동일하게 수정...
-}
-```
-
-### Phase 2: 고급 기능 구현 (우선순위: 중간)
-
-#### 2.1 성능 최적화
-```typescript
-// debounce를 통한 성능 최적화
-import { debounce } from 'lodash-es'
-
-const emitPivotModelDebounced = debounce(emitPivotModel, 100)
-```
-
-#### 2.2 변경 감지 최적화
-```typescript
-// 이전 상태와 비교하여 실제 변경된 경우만 emit
-let previousModel: PivotModelInterface | null = null
-
-const emitPivotModel = () => {
-  const currentModel = buildPivotModel()
-  
-  if (previousModel && isEqual(previousModel, currentModel)) {
-    return  // 변경사항 없으면 emit 하지 않음
-  }
-  
-  previousModel = { ...currentModel }
-  emit('update:pivotModel', currentModel)
-  emit('change', currentModel)
-}
-```
-
-#### 2.3 props와 상태 동기화
-```typescript
-// VPivottableUi.vue에서 props 변경 감지
-watch(
-  () => props.pivotModel,
-  (newModel) => {
-    if (newModel && Object.keys(newModel).length > 0) {
-      updateMultiple({
-        ...newModel
-      })
-    }
-  },
-  { deep: true, immediate: true }
-)
-```
-
-### Phase 3: 고도화 기능 (우선순위: 낮음)
-
-#### 3.1 상태 히스토리 관리
-```typescript
-interface PivotModelHistory {
-  states: PivotModelInterface[]
-  currentIndex: number
-  
-  undo(): PivotModelInterface | null
-  redo(): PivotModelInterface | null
-  canUndo(): boolean
-  canRedo(): boolean
-}
-```
-
-#### 3.2 상태 직렬화/역직렬화
-```typescript
-class PivotModelSerializer {
-  static serialize(model: PivotModelInterface): string {
-    return JSON.stringify(model)
-  }
-  
-  static deserialize(json: string): PivotModelInterface {
-    return JSON.parse(json)
-  }
-  
-  static toUrlParams(model: PivotModelInterface): URLSearchParams {
-    // URL 파라미터로 변환
-  }
-  
-  static fromUrlParams(params: URLSearchParams): Partial<PivotModelInterface> {
-    // URL 파라미터에서 복원
-  }
-}
-```
-
-## 사용자 시나리오 및 테스트 케이스
-
-### 1. 기본 사용 시나리오
-
-#### 1.1 양방향 바인딩
-```vue
-<template>
-  <div>
-    <h3>현재 피벗 모델:</h3>
-    <pre>{{ JSON.stringify(pivotModel, null, 2) }}</pre>
-    
-    <VPivottableUi
-      v-model:pivot-model="pivotModel"
-      :data="salesData"
-      @change="onPivotChange"
-    />
-    
-    <button @click="resetModel">모델 리셋</button>
-    <button @click="saveToStorage">로컬 저장</button>
-    <button @click="loadFromStorage">로컬 로드</button>
-  </div>
-</template>
-
-<script setup>
-const pivotModel = ref({
-  rows: ['region'],
-  cols: ['quarter'],
-  vals: ['sales'],
-  aggregatorName: 'Sum',
-  rendererName: 'Table',
-  valueFilter: {},
-  rowOrder: 'key_a_to_z',
-  colOrder: 'key_a_to_z'
-})
-
-const onPivotChange = (newModel) => {
-  console.log('피벗 모델 변경:', newModel)
-  // 서버에 자동 저장
-  savePivotModelToServer(newModel)
-}
-
-const resetModel = () => {
-  pivotModel.value = {
-    rows: [],
-    cols: [],
-    vals: [],
-    aggregatorName: 'Count',
-    rendererName: 'Table',
-    valueFilter: {},
-    rowOrder: 'key_a_to_z',
-    colOrder: 'key_a_to_z'
-  }
-}
-
-const saveToStorage = () => {
-  localStorage.setItem('pivotModel', JSON.stringify(pivotModel.value))
-}
-
-const loadFromStorage = () => {
-  const saved = localStorage.getItem('pivotModel')
-  if (saved) {
-    pivotModel.value = JSON.parse(saved)
-  }
-}
-</script>
-```
-
-#### 1.2 다중 피벗테이블 동기화
-```vue
-<template>
-  <div class="dashboard">
-    <div class="pivot-container">
-      <h3>매출 분석</h3>
-      <VPivottableUi
-        v-model:pivot-model="salesPivotModel"
-        :data="salesData"
-        @change="onSalesModelChange"
-      />
-    </div>
-    
-    <div class="pivot-container">
-      <h3>고객 분석 (매출 모델과 동기화)</h3>
-      <VPivottableUi
-        v-model:pivot-model="customerPivotModel"
-        :data="customerData"
-        @change="onCustomerModelChange"
-      />
-    </div>
-  </div>
-</template>
-
-<script setup>
-const salesPivotModel = ref({ /* ... */ })
-const customerPivotModel = ref({ /* ... */ })
-
-// 매출 모델 변경 시 고객 모델도 동일한 구조로 동기화
-const onSalesModelChange = (newModel) => {
-  customerPivotModel.value = {
-    ...customerPivotModel.value,
-    rows: newModel.rows,
-    cols: newModel.cols,
-    // vals는 고객 데이터에 맞게 다르게 설정
-  }
-}
-</script>
-```
-
-### 2. 테스트 케이스
-
-#### 2.1 단위 테스트
-```typescript
-describe('PivotModel 양방향 바인딩', () => {
-  test('드래그앤드롭으로 필드 이동 시 모델 업데이트', async () => {
-    const { wrapper, pivotModel } = createVPivottableUiWrapper()
-    
-    // 'category' 필드를 unused에서 rows로 드래그
-    await dragFieldToRows(wrapper, 'category')
-    
-    expect(pivotModel.value.rows).toContain('category')
-  })
-  
-  test('집계 함수 변경 시 모델 업데이트', async () => {
-    const { wrapper, pivotModel } = createVPivottableUiWrapper()
-    
-    await selectAggregator(wrapper, 'Average')
-    
-    expect(pivotModel.value.aggregatorName).toBe('Average')
-  })
-  
-  test('렌더러 변경 시 모델 업데이트', async () => {
-    const { wrapper, pivotModel } = createVPivottableUiWrapper()
-    
-    await selectRenderer(wrapper, 'Table Heatmap')
-    
-    expect(pivotModel.value.rendererName).toBe('Table Heatmap')
-    expect(pivotModel.value.heatmapMode).toBe('full')
-  })
-})
-```
-
-#### 2.2 통합 테스트
-```typescript
-describe('PivotModel 통합 테스트', () => {
-  test('복잡한 사용자 워크플로우', async () => {
-    const { wrapper, pivotModel, emitSpy } = createVPivottableUiWrapper()
-    
-    // 1. 필드 배치
-    await dragFieldToRows(wrapper, 'region')
-    await dragFieldToCols(wrapper, 'quarter')
-    await dragFieldToVals(wrapper, 'sales')
-    
-    // 2. 집계 함수 변경
-    await selectAggregator(wrapper, 'Average')
-    
-    // 3. 렌더러 변경
-    await selectRenderer(wrapper, 'Table Heatmap')
-    
-    // 4. 필터 적용
-    await applyFilter(wrapper, 'region', ['North', 'South'])
-    
-    // 5. 정렬 변경
-    await changeRowOrder(wrapper, 'value_z_to_a')
-    
-    // 모든 변경사항이 모델에 반영되었는지 확인
-    expect(pivotModel.value).toEqual({
-      rows: ['region'],
-      cols: ['quarter'],
-      vals: ['sales'],
-      aggregatorName: 'Average',
-      rendererName: 'Table Heatmap',
-      heatmapMode: 'full',
-      valueFilter: { region: ['North', 'South'] },
-      rowOrder: 'value_z_to_a',
-      colOrder: 'key_a_to_z'
-    })
-    
-    // emit이 적절히 호출되었는지 확인
-    expect(emitSpy).toHaveBeenCalledTimes(5)
-  })
-})
-```
-
-## 호환성 및 마이그레이션
-
-### 1. 기존 코드와의 호환성
-
-#### 1.1 Breaking Changes 없음
-- 기존 props는 모두 유지
-- 새로운 emit 이벤트 추가만으로 구현
-- 기존 사용자 코드는 수정 없이 동작
-
-#### 1.2 점진적 도입 가능
-```vue
-<!-- 기존 방식 (계속 지원됨) -->
-<VPivottableUi :data="data" :rows="['region']" :cols="['quarter']" />
-
-<!-- 새로운 방식 (선택적 사용) -->
-<VPivottableUi v-model:pivot-model="model" :data="data" />
-```
-
-### 2. 마이그레이션 도구
-
-#### 2.1 Props to Model 변환기
-```typescript
-function propsToModel(props: VPivottableUiProps): PivotModelInterface {
-  return {
-    rows: props.rows || [],
-    cols: props.cols || [],
-    vals: props.vals || [],
-    aggregatorName: props.aggregatorName || 'Count',
-    rendererName: props.rendererName || 'Table',
-    valueFilter: props.valueFilter || {},
-    rowOrder: props.rowOrder || 'key_a_to_z',
-    colOrder: props.colOrder || 'key_a_to_z',
-    heatmapMode: props.heatmapMode || ''
-  }
-}
-```
-
-#### 2.2 마이그레이션 가이드 문서
-```markdown
-# PivotModel 마이그레이션 가이드
-
-## 기존 코드
-```vue
-<VPivottableUi
-  :data="data"
-  :rows="['region']"
-  :cols="['quarter']"
-  :vals="['sales']"
-  :aggregator-name="'Sum'"
-  :renderer-name="'Table'"
-/>
-```
-
-## 새로운 코드
-```vue
-<VPivottableUi
-  v-model:pivot-model="pivotModel"
-  :data="data"
-  @change="handleChange"
-/>
-
-<script setup>
-const pivotModel = ref({
-  rows: ['region'],
-  cols: ['quarter'],
-  vals: ['sales'],
-  aggregatorName: 'Sum',
-  rendererName: 'Table',
-  valueFilter: {},
-  rowOrder: 'key_a_to_z',
-  colOrder: 'key_a_to_z'
-})
-</script>
-```
-```
-
-## 성능 고려사항
-
-### 1. 최적화 전략
-
-#### 1.1 불필요한 재렌더링 방지
-```typescript
-// shallow comparison으로 불필요한 업데이트 방지
-const shouldEmit = (oldModel: PivotModelInterface, newModel: PivotModelInterface): boolean => {
-  const keys: (keyof PivotModelInterface)[] = [
-    'rows', 'cols', 'vals', 'aggregatorName', 'rendererName',
-    'rowOrder', 'colOrder', 'heatmapMode'
-  ]
-  
-  for (const key of keys) {
-    if (key === 'valueFilter') {
-      if (!isEqual(oldModel[key], newModel[key])) return true
-    } else if (Array.isArray(oldModel[key])) {
-      if (!arraysEqual(oldModel[key] as string[], newModel[key] as string[])) return true
-    } else {
-      if (oldModel[key] !== newModel[key]) return true
-    }
-  }
-  
-  return false
-}
-```
-
-#### 1.2 메모리 사용량 최적화
-- 이전 상태는 shallow copy만 유지
-- 필요시에만 deep clone 수행
-- 사용하지 않는 히스토리는 자동 정리
-
-#### 1.3 대용량 데이터 처리
-```typescript
-// 대용량 필터 처리시 성능 최적화
-const optimizedValueFilter = computed(() => {
-  const filter = state.valueFilter
-  
-  // 빈 필터는 제거
-  return Object.fromEntries(
-    Object.entries(filter).filter(([key, values]) => 
-      values && values.length > 0
-    )
-  )
-})
-```
-
-### 2. 메모리 누수 방지
-
-#### 2.1 이벤트 리스너 정리
-```typescript
-// composable에서 cleanup 함수 제공
-export function usePropsState(initialProps, emit) {
-  // ... 기존 코드
-  
-  const cleanup = () => {
-    // debounced 함수 취소
-    emitPivotModelDebounced.cancel()
-    
-    // 상태 참조 해제
-    previousModel = null
-  }
-  
-  return {
-    // ... 기존 반환값
-    cleanup
-  }
-}
-
-// VPivottableUi.vue에서 cleanup 호출
-onUnmounted(() => {
-  cleanup?.()
-})
-```
-
-## 문서화 및 예제
-
-### 1. API 문서
-
-#### 1.1 Props 문서
-```typescript
-interface VPivottableUiProps {
-  // 기존 props들...
-  
-  /**
-   * 피벗테이블의 현재 상태를 나타내는 모델 객체
-   * v-model:pivot-model로 양방향 바인딩 가능
-   * @since v1.2.0
-   */
-  pivotModel?: PivotModelInterface
-}
-```
-
-#### 1.2 Events 문서
-```typescript
-interface VPivottableUiEmits {
-  /**
-   * 피벗 모델이 변경될 때 발생
-   * v-model:pivot-model과 함께 사용
-   * @param model 변경된 피벗 모델
-   * @since v1.2.0
-   */
-  'update:pivotModel': [model: PivotModelInterface]
-  
-  /**
-   * 사용자 상호작용으로 피벗 상태가 변경될 때 발생
-   * @param model 변경된 피벗 모델
-   * @since v1.2.0
-   */
-  'change': [model: PivotModelInterface]
-}
-```
-
-### 2. 예제 코드
-
-#### 2.1 기본 사용법
-```vue
-<template>
-  <VPivottableUi
-    v-model:pivot-model="pivotModel"
-    :data="salesData"
-    @change="handlePivotChange"
-  />
-</template>
-
-<script setup>
-import { ref } from 'vue'
-import { VPivottableUi } from 'vue3-pivottable'
-
-const pivotModel = ref({
-  rows: ['region'],
-  cols: ['quarter'],
-  vals: ['sales'],
-  aggregatorName: 'Sum',
-  rendererName: 'Table',
-  valueFilter: {},
-  rowOrder: 'key_a_to_z',
-  colOrder: 'key_a_to_z'
-})
-
-const handlePivotChange = (model) => {
-  console.log('피벗 상태 변경:', model)
-}
-</script>
-```
-
-#### 2.2 고급 사용법
-```vue
-<template>
-  <div>
-    <!-- 피벗 상태 저장/복원 -->
-    <div class="controls">
-      <button @click="saveState">상태 저장</button>
-      <button @click="loadState">상태 복원</button>
-      <button @click="resetState">초기화</button>
-    </div>
-    
-    <!-- 피벗테이블 -->
-    <VPivottableUi
-      v-model:pivot-model="pivotModel"
-      :data="data"
-      @change="onPivotChange"
-    />
-    
-    <!-- 상태 히스토리 -->
-    <div class="history">
-      <button @click="undo" :disabled="!canUndo">실행 취소</button>
-      <button @click="redo" :disabled="!canRedo">다시 실행</button>
-    </div>
-  </div>
-</template>
-
-<script setup>
-import { ref, computed } from 'vue'
-import { usePivotModelHistory } from './composables/usePivotModelHistory'
-
-const pivotModel = ref({
-  rows: [],
-  cols: [],
-  vals: [],
-  aggregatorName: 'Count',
-  rendererName: 'Table',
-  valueFilter: {},
-  rowOrder: 'key_a_to_z',
-  colOrder: 'key_a_to_z'
-})
-
-const {
-  history,
-  currentIndex,
-  pushState,
-  undo,
-  redo,
-  canUndo,
-  canRedo
-} = usePivotModelHistory(pivotModel)
-
-const onPivotChange = (newModel) => {
-  pushState(newModel)
-  
-  // 서버에 자동 저장
-  saveToServer(newModel)
-}
-
-const saveState = () => {
-  localStorage.setItem('pivotModel', JSON.stringify(pivotModel.value))
-}
-
-const loadState = () => {
-  const saved = localStorage.getItem('pivotModel')
-  if (saved) {
-    pivotModel.value = JSON.parse(saved)
-  }
-}
-
-const resetState = () => {
-  pivotModel.value = {
-    rows: [],
-    cols: [],
-    vals: [],
-    aggregatorName: 'Count',
-    rendererName: 'Table',
-    valueFilter: {},
-    rowOrder: 'key_a_to_z',
-    colOrder: 'key_a_to_z'
-  }
-}
-</script>
-```
-
-## 품질 보증
-
-### 1. 테스트 커버리지 목표
-- 단위 테스트: 90% 이상
-- 통합 테스트: 주요 사용 시나리오 100% 커버
-- E2E 테스트: 핵심 워크플로우 커버
-
-### 2. 성능 벤치마크
-- 1000개 데이터 포인트에서 상태 변경 응답시간 < 100ms
-- 10000개 데이터 포인트에서 메모리 사용량 증가 < 10MB
-- 연속적인 드래그앤드롭 작업에서 메모리 누수 없음
-
-### 3. 브라우저 호환성
-- Chrome 90+
-- Firefox 88+
-- Safari 14+
-- Edge 90+
-
-## 릴리즈 계획
-
-### Version 1.2.0 (Major Feature Release)
-- **목표 일정**: 개발 완료 후 2주 내
-- **주요 기능**:
-  - PivotModel 양방향 바인딩
-  - TypeScript 타입 정의
-  - 기본 emit 이벤트 지원
-  - 마이그레이션 가이드
-
-### Version 1.2.1 (Performance & Stability)
-- **목표 일정**: 1.2.0 릴리즈 후 1주 내
-- **개선 사항**:
-  - 성능 최적화
-  - 메모리 누수 방지
-  - 에러 핸들링 개선
-
-### Version 1.3.0 (Advanced Features)
-- **목표 일정**: 1.2.1 릴리즈 후 1달 내
-- **고급 기능**:
-  - 상태 히스토리 관리
-  - 직렬화/역직렬화
-  - URL 상태 동기화
-
-## 결론
-
-본 PivotModel 양방향 바인딩 기능은 vue3-pivottable의 사용성을 크게 향상시킬 핵심 기능입니다. 
-
-### 주요 이점:
-1. **개발자 경험 향상**: 상태 변경 추적 및 관리 용이
-2. **실용성 증대**: 상태 저장/복원, 다중 피벗테이블 동기화 등 고급 기능 지원
-3. **Vue 3 생태계 통합**: v-model 패턴을 통한 자연스러운 Vue 3 개발 경험
-
-### 기술적 안정성:
-- 기존 API와 100% 호환
-- 점진적 도입 가능
-- 성능 최적화 및 메모리 안전성 보장
-
-이 기능의 구현을 통해 vue3-pivottable은 단순한 표시 컴포넌트에서 상태 관리가 가능한 완전한 피벗테이블 솔루션으로 발전할 것입니다.
\ No newline at end of file
diff --git a/AI_USAGE_GUIDELINES.md b/docs/AI_USAGE_GUIDELINES.md
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rename to docs/AI_USAGE_GUIDELINES.md
diff --git a/RELEASE_STRATEGY.ko.md b/docs/RELEASE_STRATEGY.ko.md
similarity index 100%
rename from RELEASE_STRATEGY.ko.md
rename to docs/RELEASE_STRATEGY.ko.md
diff --git a/RELEASE_STRATEGY.md b/docs/RELEASE_STRATEGY.md
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rename from RELEASE_STRATEGY.md
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diff --git a/examples/pivot-model-usage.vue b/examples/pivot-model-usage.vue
deleted file mode 100644
index 5833908..0000000
--- a/examples/pivot-model-usage.vue
+++ /dev/null
@@ -1,357 +0,0 @@
-<template>
-  <div class="pivot-model-example">
-    <h1>PivotModel 양방향 바인딩 사용 예제</h1>
-    
-    <!-- 기본 사용법 -->
-    <section class="basic-usage">
-      <h2>기본 사용법</h2>
-      <div class="controls">
-        <button @click="resetModel">모델 초기화</button>
-        <button @click="saveToLocalStorage">로컬 저장</button>
-        <button @click="loadFromLocalStorage">로컬 로드</button>
-      </div>
-      
-      <div class="model-status">
-        <h3>현재 PivotModel 상태:</h3>
-        <pre>{{ JSON.stringify(pivotModel, null, 2) }}</pre>
-      </div>
-      
-      <VPivottableUi
-        v-model:pivot-model="pivotModel"
-        :data="salesData"
-        @change="onPivotChange"
-      />
-    </section>
-
-    <!-- 히스토리 관리 예제 -->
-    <section class="history-example">
-      <h2>상태 히스토리 관리</h2>
-      <div class="history-controls">
-        <button
-          @click="undo"
-          :disabled="!canUndo"
-        >
-          ← 실행 취소
-        </button>
-        <span>{{ currentIndex + 1 }} / {{ history.length }}</span>
-        <button
-          @click="redo"
-          :disabled="!canRedo"
-        >
-          다시 실행 →
-        </button>
-      </div>
-      
-      <VPivottableUi
-        v-model:pivot-model="historyModel"
-        :data="salesData"
-      />
-    </section>
-
-    <!-- URL 동기화 예제 -->
-    <section class="url-sync-example">
-      <h2>URL 파라미터 동기화</h2>
-      <div class="url-controls">
-        <button @click="syncToUrl">URL에 저장</button>
-        <button @click="loadFromUrl">URL에서 로드</button>
-        <button @click="shareUrl">공유 링크 생성</button>
-      </div>
-      
-      <div
-        v-if="shareLink"
-        class="share-link"
-      >
-        <p>공유 링크:</p>
-        <code>{{ shareLink }}</code>
-      </div>
-      
-      <VPivottableUi
-        v-model:pivot-model="urlModel"
-        :data="salesData"
-      />
-    </section>
-
-    <!-- 다중 피벗테이블 동기화 -->
-    <section class="sync-example">
-      <h2>다중 피벗테이블 동기화</h2>
-      <div class="sync-controls">
-        <label>
-          <input
-            type="checkbox"
-            v-model="syncEnabled"
-          />
-          동기화 활성화
-        </label>
-      </div>
-      
-      <div class="pivot-grid">
-        <div class="pivot-item">
-          <h3>매출 분석</h3>
-          <VPivottableUi
-            v-model:pivot-model="masterModel"
-            :data="salesData"
-            @change="onMasterChange"
-          />
-        </div>
-        
-        <div class="pivot-item">
-          <h3>고객 분석 (동기화됨)</h3>
-          <VPivottableUi
-            v-model:pivot-model="slaveModel"
-            :data="customerData"
-          />
-        </div>
-      </div>
-    </section>
-  </div>
-</template>
-
-<script setup lang="ts">
-import { ref, onMounted } from 'vue'
-import { VPivottableUi } from '@/components'
-import { PivotModelInterface } from '@/types'
-import { createPivotModel } from '@/utils/pivotModel'
-import { PivotModelSerializer } from '@/utils/pivotModelSerializer'
-import { usePivotModelHistory } from '@/composables/usePivotModelHistory'
-
-// 샘플 데이터
-const salesData = ref([
-  { region: 'North', quarter: 'Q1', product: 'A', sales: 100, quantity: 10 },
-  { region: 'North', quarter: 'Q1', product: 'B', sales: 150, quantity: 15 },
-  { region: 'North', quarter: 'Q2', product: 'A', sales: 120, quantity: 12 },
-  { region: 'North', quarter: 'Q2', product: 'B', sales: 180, quantity: 18 },
-  { region: 'South', quarter: 'Q1', product: 'A', sales: 200, quantity: 20 },
-  { region: 'South', quarter: 'Q1', product: 'B', sales: 250, quantity: 25 },
-  { region: 'South', quarter: 'Q2', product: 'A', sales: 220, quantity: 22 },
-  { region: 'South', quarter: 'Q2', product: 'B', sales: 280, quantity: 28 },
-  { region: 'East', quarter: 'Q1', product: 'A', sales: 150, quantity: 15 },
-  { region: 'East', quarter: 'Q1', product: 'B', sales: 200, quantity: 20 },
-  { region: 'East', quarter: 'Q2', product: 'A', sales: 170, quantity: 17 },
-  { region: 'East', quarter: 'Q2', product: 'B', sales: 230, quantity: 23 }
-])
-
-const customerData = ref([
-  { region: 'North', quarter: 'Q1', segment: 'Enterprise', customers: 50 },
-  { region: 'North', quarter: 'Q1', segment: 'SMB', customers: 100 },
-  { region: 'North', quarter: 'Q2', segment: 'Enterprise', customers: 55 },
-  { region: 'North', quarter: 'Q2', segment: 'SMB', customers: 110 },
-  { region: 'South', quarter: 'Q1', segment: 'Enterprise', customers: 40 },
-  { region: 'South', quarter: 'Q1', segment: 'SMB', customers: 80 },
-  { region: 'South', quarter: 'Q2', segment: 'Enterprise', customers: 45 },
-  { region: 'South', quarter: 'Q2', segment: 'SMB', customers: 90 }
-])
-
-// 1. 기본 사용법
-const pivotModel = ref<PivotModelInterface>(createPivotModel({
-  rows: ['region'],
-  cols: ['quarter'],
-  vals: ['sales'],
-  aggregatorName: 'Sum',
-  rendererName: 'Table'
-}))
-
-const onPivotChange = (newModel: PivotModelInterface) => {
-  console.log('피벗 모델 변경:', newModel)
-  // 여기서 서버로 상태를 저장하거나 다른 작업을 수행할 수 있습니다
-}
-
-const resetModel = () => {
-  pivotModel.value = createPivotModel()
-}
-
-const saveToLocalStorage = () => {
-  PivotModelSerializer.saveToLocalStorage('myPivotModel', pivotModel.value)
-  alert('로컬 스토리지에 저장되었습니다!')
-}
-
-const loadFromLocalStorage = () => {
-  const loaded = PivotModelSerializer.loadFromLocalStorage('myPivotModel')
-  if (loaded) {
-    pivotModel.value = loaded
-    alert('로컬 스토리지에서 로드되었습니다!')
-  } else {
-    alert('저장된 모델이 없습니다.')
-  }
-}
-
-// 2. 히스토리 관리
-const historyModel = ref<PivotModelInterface>(createPivotModel({
-  rows: ['product'],
-  cols: ['region'],
-  vals: ['quantity'],
-  aggregatorName: 'Average'
-}))
-
-const {
-  history,
-  currentIndex,
-  canUndo,
-  canRedo,
-  undo,
-  redo
-} = usePivotModelHistory(historyModel)
-
-// 3. URL 동기화
-const urlModel = ref<PivotModelInterface>(createPivotModel())
-const shareLink = ref<string>('')
-
-const syncToUrl = () => {
-  const params = PivotModelSerializer.toUrlParams(urlModel.value)
-  const newUrl = `${window.location.pathname}?${params.toString()}`
-  window.history.pushState({}, '', newUrl)
-  alert('URL에 저장되었습니다!')
-}
-
-const loadFromUrl = () => {
-  const params = new URLSearchParams(window.location.search)
-  const loaded = PivotModelSerializer.fromUrlParams(params)
-  if (Object.keys(loaded).length > 0) {
-    urlModel.value = createPivotModel(loaded)
-    alert('URL에서 로드되었습니다!')
-  } else {
-    alert('URL에 저장된 모델이 없습니다.')
-  }
-}
-
-const shareUrl = () => {
-  const params = PivotModelSerializer.toUrlParams(urlModel.value)
-  shareLink.value = `${window.location.origin}${window.location.pathname}?${params.toString()}`
-}
-
-// 4. 다중 피벗테이블 동기화
-const syncEnabled = ref(false)
-const masterModel = ref<PivotModelInterface>(createPivotModel({
-  rows: ['region'],
-  cols: ['quarter'],
-  vals: ['sales']
-}))
-const slaveModel = ref<PivotModelInterface>(createPivotModel({
-  rows: ['region'],
-  cols: ['quarter'],
-  vals: ['customers']
-}))
-
-const onMasterChange = (newModel: PivotModelInterface) => {
-  if (syncEnabled.value) {
-    // 구조만 동기화하고 vals는 유지
-    slaveModel.value = {
-      ...slaveModel.value,
-      rows: newModel.rows,
-      cols: newModel.cols,
-      aggregatorName: newModel.aggregatorName,
-      rowOrder: newModel.rowOrder,
-      colOrder: newModel.colOrder,
-      valueFilter: newModel.valueFilter
-    }
-  }
-}
-
-// 페이지 로드 시 URL에서 상태 복원
-onMounted(() => {
-  loadFromUrl()
-})
-</script>
-
-<style scoped>
-.pivot-model-example {
-  max-width: 1400px;
-  margin: 0 auto;
-  padding: 20px;
-}
-
-section {
-  margin-bottom: 60px;
-  padding: 20px;
-  border: 1px solid #e0e0e0;
-  border-radius: 8px;
-}
-
-h1, h2, h3 {
-  margin-bottom: 20px;
-}
-
-.controls, .history-controls, .url-controls, .sync-controls {
-  margin-bottom: 20px;
-  display: flex;
-  gap: 10px;
-  align-items: center;
-}
-
-button {
-  padding: 8px 16px;
-  border: 1px solid #ddd;
-  border-radius: 4px;
-  background: white;
-  cursor: pointer;
-  transition: all 0.3s;
-}
-
-button:hover:not(:disabled) {
-  background: #f0f0f0;
-}
-
-button:disabled {
-  opacity: 0.5;
-  cursor: not-allowed;
-}
-
-.model-status {
-  margin-bottom: 20px;
-  padding: 15px;
-  background: #f5f5f5;
-  border-radius: 4px;
-}
-
-.model-status pre {
-  margin: 0;
-  font-size: 12px;
-  max-height: 200px;
-  overflow-y: auto;
-}
-
-.share-link {
-  margin-bottom: 20px;
-  padding: 15px;
-  background: #e8f5e9;
-  border-radius: 4px;
-}
-
-.share-link code {
-  display: block;
-  padding: 10px;
-  background: white;
-  border-radius: 4px;
-  word-break: break-all;
-  font-size: 12px;
-}
-
-.pivot-grid {
-  display: grid;
-  grid-template-columns: 1fr 1fr;
-  gap: 20px;
-}
-
-.pivot-item {
-  border: 1px solid #e0e0e0;
-  padding: 15px;
-  border-radius: 4px;
-}
-
-.pivot-item h3 {
-  margin-bottom: 15px;
-  color: #333;
-}
-
-label {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-  cursor: pointer;
-}
-
-input[type="checkbox"] {
-  width: 18px;
-  height: 18px;
-  cursor: pointer;
-}
-</style>
\ No newline at end of file
diff --git a/src/MemoeryTestApp.vue b/src/MemoeryTestApp.vue
new file mode 100644
index 0000000..2e53ea0
--- /dev/null
+++ b/src/MemoeryTestApp.vue
@@ -0,0 +1,586 @@
+<template>
+  <div id="app">
+    <h1>Vue PivotTable (v1.1.7) Memory Leak Detector</h1>
+    <div class="controls">
+      <button @click="togglePivot">
+        {{ showPivot ? 'Hide' : 'Show' }} PivotTable
+      </button>
+      <button
+        @click="refresh"
+        class="btn-primary"
+      >
+        🔄 Force Refresh
+      </button>
+      <button
+        @click="refreshMultipleTimes(50)"
+        class="btn-danger"
+      >
+        🔥 Refresh 50 Times
+      </button>
+      <button
+        @click="takeSnapshot"
+        :disabled="isAnalyzing"
+      >
+        {{ isAnalyzing ? 'Analyzing...' : '📸 Analyze Memory' }}
+      </button>
+      <button @click="clearLog">Clear Log</button>
+      <label class="checkbox-label">
+        <input
+          type="checkbox"
+          v-model="useComponentKey"
+        />
+        <span>Enable Component Key (Simulates Memory Leak)</span>
+      </label>
+      <select
+        v-model.number="dataSize"
+        @change="onDataSizeChange"
+        class="data-size-select"
+      >
+        <option :value="1000">1,000 records</option>
+        <option :value="5000">5,000 records</option>
+        <option :value="10000">10,000 records</option>
+      </select>
+    </div>
+
+    <div class="stats">
+      <div>Data Size: {{ dataSize.toLocaleString() }} records</div>
+      <div>Refresh Count: {{ refreshCount }}</div>
+      <div :class="{ warning: useComponentKey }">
+        Component Key: {{ useComponentKey ? componentKey : '0 (fixed)' }}
+      </div>
+      <div>Current Memory: {{ currentMemory }} MB</div>
+      <div>Initial Memory: {{ initialMemory }} MB</div>
+      <div :class="getMemoryClass()">Memory Growth: {{ memoryGrowth }} MB</div>
+    </div>
+
+    <div
+      class="analysis"
+      v-if="analysisResults.length > 0"
+    >
+      <h2>Memory Analysis Results:</h2>
+      <div
+        v-for="(result, index) in analysisResults"
+        :key="index"
+        class="result"
+      >
+        <strong>{{ result.timestamp }}</strong>
+        <pre>{{ result.data }}</pre>
+      </div>
+    </div>
+
+    <VuePivottableUi
+      v-if="showPivot"
+      :key="useComponentKey ? componentKey : 0"
+      :data="tableData"
+      :aggregators="aggregators"
+      :renderers="renderers"
+      :rows="['Category']"
+      :cols="['Month']"
+      :vals="['Sales']"
+      aggregator-name="Sum"
+      renderer-name="Table"
+    />
+  </div>
+</template>
+
+<script setup>
+import { ref, onMounted, onUnmounted, nextTick, markRaw } from 'vue'
+import { VuePivottableUi, PivotUtilities, Renderer } from '@/'
+import 'vue-pivottable/dist/vue-pivottable.css'
+
+// Use default aggregators and renderers - mark as non-reactive for performance
+const aggregators =
+  markRaw(PivotUtilities.aggregators) ||
+  markRaw({
+    Count: () => () => ({
+      count: 0,
+      push() {
+        this.count++
+      },
+      value() {
+        return this.count
+      },
+      format: (x) => x
+    }),
+    Sum:
+      () =>
+      ([attr]) => ({
+        sum: 0,
+        push(record) {
+          const val = parseFloat(record[attr])
+          if (!isNaN(val)) this.sum += val
+        },
+        value() {
+          return this.sum
+        },
+        format: (x) => x.toFixed(0)
+      })
+  })
+
+const renderers =
+  markRaw(Renderer) ||
+  markRaw({
+    'Table': () => {},
+    'Table Heatmap': () => {}
+  })
+
+// State
+const showPivot = ref(true)
+const refreshCount = ref(0)
+const dataSize = ref(1000)
+const currentMemory = ref('0.00')
+const initialMemory = ref('0.00')
+const memoryGrowth = ref('0.00')
+const isAnalyzing = ref(false)
+const analysisResults = ref([])
+const useComponentKey = ref(false) // Toggle for testing memory leak
+const componentKey = ref(0)
+
+let initialMem = 0
+let memoryCheckInterval = null
+
+// Generate test data
+const generateTableData = (size = dataSize.value) => {
+  const categories = [
+    'Electronics',
+    'Clothing',
+    'Food',
+    'Books',
+    'Sports',
+    'Home',
+    'Toys',
+    'Health',
+    'Beauty',
+    'Auto'
+  ]
+  const months = [
+    'Jan',
+    'Feb',
+    'Mar',
+    'Apr',
+    'May',
+    'Jun',
+    'Jul',
+    'Aug',
+    'Sep',
+    'Oct',
+    'Nov',
+    'Dec'
+  ]
+  const regions = ['North', 'South', 'East', 'West', 'Central']
+
+  const data = []
+  for (let i = 0; i < size; i++) {
+    data.push({
+      id: i,
+      Category: categories[Math.floor(Math.random() * categories.length)],
+      Month: months[Math.floor(Math.random() * months.length)],
+      Region: regions[Math.floor(Math.random() * regions.length)],
+      Sales: Math.floor(Math.random() * 10000) + 100,
+      Quantity: Math.floor(Math.random() * 500) + 1,
+      Cost: Math.floor(Math.random() * 5000) + 50,
+      Profit: Math.floor(Math.random() * 3000) + 10,
+      Date: new Date(
+        2024,
+        Math.floor(Math.random() * 12),
+        Math.floor(Math.random() * 28) + 1
+      ).toISOString()
+    })
+  }
+  return data
+}
+
+const tableData = ref(generateTableData())
+
+// Memory measurement
+const updateMemory = () => {
+  // Check if performance.memory is available (Chrome only)
+  if (typeof performance !== 'undefined' && performance.memory) {
+    const currentMem = performance.memory.usedJSHeapSize / 1048576
+    currentMemory.value = currentMem.toFixed(2)
+
+    if (initialMem === 0) {
+      initialMem = currentMem
+      initialMemory.value = currentMem.toFixed(2)
+    }
+
+    memoryGrowth.value = (currentMem - initialMem).toFixed(2)
+  } else {
+    // Fallback for browsers without performance.memory
+    currentMemory.value = 'N/A'
+    console.warn(
+      'Memory measurement requires Chrome with performance.memory API'
+    )
+  }
+}
+
+// Get memory status class
+const getMemoryClass = () => {
+  const growth = parseFloat(memoryGrowth.value)
+  if (growth < 10) return 'good'
+  if (growth < 50) return 'warning'
+  return 'danger'
+}
+
+// Toggle PivotTable visibility
+const togglePivot = async () => {
+  showPivot.value = !showPivot.value
+  await nextTick()
+  updateMemory()
+}
+
+// Refresh with new data
+const refresh = async (countAsRefresh = true) => {
+  // Hide component
+  showPivot.value = false
+  await nextTick()
+
+  // Generate new data
+  tableData.value = generateTableData()
+
+  // Show component
+  showPivot.value = true
+
+  // Increment component key if enabled (simulates memory leak)
+  if (useComponentKey.value) {
+    componentKey.value++
+  }
+
+  if (countAsRefresh) {
+    refreshCount.value++
+  }
+
+  await nextTick()
+  updateMemory()
+
+  if (countAsRefresh) {
+    console.log(
+      `[Memory Test] Refresh #${refreshCount.value}: ${currentMemory.value} MB (Key: ${useComponentKey.value ? componentKey.value : 0})`
+    )
+  }
+}
+
+// Refresh multiple times
+const refreshMultipleTimes = async (times) => {
+  console.log(
+    `Starting ${times} refreshes with Component Key ${useComponentKey.value ? 'ENABLED' : 'DISABLED'}`
+  )
+
+  const startMemory = parseFloat(currentMemory.value)
+
+  for (let i = 0; i < times; i++) {
+    await refresh()
+    await new Promise((resolve) => setTimeout(resolve, 50))
+  }
+
+  const endMemory = parseFloat(currentMemory.value)
+  const totalGrowth = endMemory - startMemory
+
+  console.log(`Completed ${times} refreshes`)
+  console.log(`Memory growth: ${totalGrowth.toFixed(2)} MB`)
+  console.log(`Average per refresh: ${(totalGrowth / times).toFixed(2)} MB`)
+}
+
+// Analyze memory state
+const takeSnapshot = async () => {
+  isAnalyzing.value = true
+
+  try {
+    await refresh(false)
+    await new Promise((resolve) => setTimeout(resolve, 500))
+
+    const analysis = analyzeMemoryState()
+
+    analysisResults.value.unshift({
+      timestamp: new Date().toLocaleTimeString(),
+      data: analysis
+    })
+
+    if (analysisResults.value.length > 5) {
+      analysisResults.value = analysisResults.value.slice(0, 5)
+    }
+  } finally {
+    isAnalyzing.value = false
+  }
+}
+
+// Analyze current memory state
+const analyzeMemoryState = () => {
+  const results = []
+
+  // Configuration
+  results.push('=== Test Configuration ===')
+  results.push(
+    `Component Key Mode: ${useComponentKey.value ? 'ENABLED (Memory Leak)' : 'DISABLED (Normal)'}`
+  )
+  results.push(`Data Size: ${dataSize.value} records`)
+  results.push(`Refreshes performed: ${refreshCount.value}`)
+
+  // Memory stats
+  if (performance.memory) {
+    const memStats = {
+      used: (performance.memory.usedJSHeapSize / 1048576).toFixed(2),
+      total: (performance.memory.totalJSHeapSize / 1048576).toFixed(2),
+      limit: (performance.memory.jsHeapSizeLimit / 1048576).toFixed(2)
+    }
+    results.push('\n=== Memory Statistics ===')
+    results.push(`Used: ${memStats.used} MB`)
+    results.push(`Total: ${memStats.total} MB`)
+    results.push(`Limit: ${memStats.limit} MB`)
+  }
+
+  // DOM analysis
+  results.push('\n=== DOM Analysis ===')
+  results.push(`Total DOM nodes: ${document.getElementsByTagName('*').length}`)
+  results.push(`Table data length: ${tableData.value.length}`)
+
+  // Test verdict
+  results.push('\n=== Test Verdict ===')
+  if (refreshCount.value > 0) {
+    const avgGrowthPerRefresh =
+      parseFloat(memoryGrowth.value) / refreshCount.value
+    results.push(
+      `Average growth per refresh: ${avgGrowthPerRefresh.toFixed(2)} MB`
+    )
+
+    if (useComponentKey.value) {
+      results.push('⚠️ Component Key is ENABLED - Memory leak expected!')
+      results.push('   Each refresh creates a new component instance')
+    } else {
+      if (avgGrowthPerRefresh < 0.1) {
+        results.push('✅ No memory leak detected')
+        results.push('   Component is properly reusing instances')
+      } else if (avgGrowthPerRefresh < 0.5) {
+        results.push('⚠️ Minor memory growth detected')
+        results.push('   May be normal data accumulation')
+      } else {
+        results.push('❌ Unexpected memory growth!')
+        results.push('   Check for event listeners or references')
+      }
+    }
+  }
+
+  // Recommendations
+  results.push('\n=== Recommendations ===')
+  results.push('1. Test with Component Key OFF (normal behavior)')
+  results.push('2. Test with Component Key ON (simulate leak)')
+  results.push('3. Compare results to verify fix effectiveness')
+  results.push('4. Use Chrome DevTools for detailed analysis')
+
+  return results.join('\n')
+}
+
+// Clear analysis log
+const clearLog = () => {
+  analysisResults.value = []
+  refreshCount.value = 0
+  componentKey.value = 0
+  initialMem = 0
+  updateMemory()
+}
+
+// Handle data size change
+const onDataSizeChange = () => {
+  console.log(`Data size changed to ${dataSize.value} records`)
+  tableData.value = generateTableData(dataSize.value)
+  updateMemory()
+}
+
+// Lifecycle
+onMounted(() => {
+  updateMemory()
+
+  // Only check memory every 5 seconds to reduce overhead
+  memoryCheckInterval = setInterval(updateMemory, 5000)
+
+  console.log('=== Vue PivotTable Memory Leak Detector ===')
+  console.log('Instructions:')
+  console.log('1. Toggle "Enable Component Key" to simulate memory leak')
+  console.log('2. Click "Refresh 50 Times" to run test')
+  console.log('3. Compare results with Component Key ON vs OFF')
+  console.log('')
+  console.log('Expected Results:')
+  console.log('- Component Key OFF: Stable memory (~50MB)')
+  console.log('- Component Key ON: Growing memory (leak simulation)')
+
+  if (!performance.memory) {
+    console.warn('⚠️ Memory measurement requires Chrome browser')
+    console.warn('Run Chrome with: --enable-precise-memory-info')
+  }
+})
+
+onUnmounted(() => {
+  if (memoryCheckInterval) {
+    clearInterval(memoryCheckInterval)
+  }
+})
+</script>
+
+<style scoped>
+#app {
+  font-family:
+    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+  padding: 20px;
+  max-width: 1200px;
+  margin: 0 auto;
+}
+
+h1 {
+  color: #333;
+  margin-bottom: 20px;
+}
+
+.controls {
+  margin-bottom: 20px;
+  display: flex;
+  gap: 10px;
+  flex-wrap: wrap;
+  align-items: center;
+}
+
+.controls button {
+  padding: 10px 20px;
+  font-size: 14px;
+  cursor: pointer;
+  background: #4caf50;
+  color: white;
+  border: none;
+  border-radius: 4px;
+  transition: all 0.3s;
+}
+
+.controls button:hover:not(:disabled) {
+  background: #45a049;
+  transform: translateY(-1px);
+}
+
+.controls button:disabled {
+  background: #ccc;
+  cursor: not-allowed;
+}
+
+.btn-primary {
+  background: #007bff !important;
+}
+
+.btn-danger {
+  background: #dc3545 !important;
+}
+
+.checkbox-label {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  padding: 8px 12px;
+  background: #f8f9fa;
+  border-radius: 4px;
+  cursor: pointer;
+}
+
+.checkbox-label input {
+  cursor: pointer;
+}
+
+.data-size-select {
+  padding: 10px 15px;
+  font-size: 14px;
+  border: 1px solid #ddd;
+  border-radius: 4px;
+  background: white;
+  cursor: pointer;
+}
+
+.stats {
+  background: #f8f9fa;
+  padding: 15px;
+  border-radius: 8px;
+  margin-bottom: 20px;
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
+  gap: 15px;
+}
+
+.stats > div {
+  padding: 10px;
+  background: white;
+  border-radius: 4px;
+  font-family: 'SF Mono', Monaco, monospace;
+  font-size: 13px;
+}
+
+.stats .good {
+  color: #28a745;
+  font-weight: bold;
+}
+
+.stats .warning {
+  color: #ffc107;
+  font-weight: bold;
+}
+
+.stats .danger {
+  color: #dc3545;
+  font-weight: bold;
+}
+
+.analysis {
+  background: white;
+  border: 1px solid #dee2e6;
+  padding: 20px;
+  border-radius: 8px;
+  margin-bottom: 20px;
+  max-height: 400px;
+  overflow-y: auto;
+}
+
+.analysis h2 {
+  margin-top: 0;
+  color: #495057;
+  font-size: 18px;
+}
+
+.result {
+  margin-bottom: 15px;
+  padding-bottom: 15px;
+  border-bottom: 1px solid #e9ecef;
+}
+
+.result:last-child {
+  border-bottom: none;
+}
+
+.result strong {
+  color: #007bff;
+  display: block;
+  margin-bottom: 8px;
+}
+
+.result pre {
+  background: #f8f9fa;
+  padding: 12px;
+  border-radius: 4px;
+  white-space: pre-wrap;
+  font-size: 12px;
+  line-height: 1.5;
+  margin: 0;
+  font-family: 'SF Mono', Monaco, monospace;
+}
+
+/* PivotTable styling */
+:deep(.pvtUi) {
+  font-size: 13px;
+}
+
+:deep(.pvtTable) {
+  font-size: 12px;
+}
+
+:deep(.pvtTable th) {
+  background: #f8f9fa;
+  font-weight: 600;
+}
+
+:deep(.pvtTable td) {
+  padding: 6px;
+}
+</style>
diff --git a/src/SImpleApp.vue b/src/SImpleApp.vue
new file mode 100644
index 0000000..f132139
--- /dev/null
+++ b/src/SImpleApp.vue
@@ -0,0 +1,19 @@
+<template>
+  <div id="app">
+    <VuePivottable
+      :data="[
+        { color: 'blue', shape: 'circle' },
+        { color: 'red', shape: 'triangle' }
+      ]"
+      :rows="['color']"
+      :cols="['shape']"
+    />
+  </div>
+</template>
+
+<script setup>
+import { VuePivottable } from './index.ts'
+import 'vue-pivottable/dist/vue-pivottable.css'
+</script>
+
+<style scoped></style>
diff --git a/src/components/pivottable-ui/VPivottableUi.vue b/src/components/pivottable-ui/VPivottableUi.vue
index 5238f81..b2fcec1 100644
--- a/src/components/pivottable-ui/VPivottableUi.vue
+++ b/src/components/pivottable-ui/VPivottableUi.vue
@@ -137,7 +137,8 @@ import VRendererCell from './VRendererCell.vue'
 import VAggregatorCell from './VAggregatorCell.vue'
 import VDragAndDropCell from './VDragAndDropCell.vue'
 import VPivottable from '../pivottable/VPivottable.vue'
-import { computed, watch, shallowRef, watchEffect, onUnmounted } from 'vue'
+import TableRenderer from '../pivottable/renderer'
+import { computed, watch, toRaw } from 'vue'
 import {
   usePropsState,
   useMaterializeInput,
@@ -182,6 +183,7 @@ const props = withDefaults(
   >(),
   {
     aggregators: () => defaultAggregators,
+    renderers: () => TableRenderer,
     hiddenAttributes: () => [],
     hiddenFromAggregators: () => [],
     pivotModel: undefined,
@@ -291,9 +293,10 @@ const { allFilters, materializedInput } = useMaterializeInput(
 )
 
 const rendererItems = computed(() =>
-  Object.keys(state.renderers).length ? state.renderers : {}
+  state.renderers && Object.keys(state.renderers).length ? state.renderers : {}
 )
 const aggregatorItems = computed(() => state.aggregators)
+
 const rowAttrs = computed(() => {
   return state.rows.filter(
     (e) =>
@@ -327,38 +330,11 @@ const unusedAttrs = computed(() => {
     .sort(sortAs(pivotUiState.unusedOrder))
 })
 
-// Use shallowRef instead of computed to prevent creating new PivotData instances on every access
-const pivotData = shallowRef(new PivotData(state))
-
-// Update pivotData when state changes, and clean up the watcher
-const stopWatcher = watchEffect(() => {
-  // Clean up old PivotData if exists
-  const oldPivotData = pivotData.value
-  pivotData.value = new PivotData(state)
-  
-  // Clear old data references
-  if (oldPivotData) {
-    oldPivotData.tree = {}
-    oldPivotData.rowKeys = []
-    oldPivotData.colKeys = []
-    oldPivotData.rowTotals = {}
-    oldPivotData.colTotals = {}
-    oldPivotData.filteredData = []
-  }
-})
-
-// Clean up on unmount
-onUnmounted(() => {
-  stopWatcher()
-  if (pivotData.value) {
-    pivotData.value.tree = {}
-    pivotData.value.rowKeys = []
-    pivotData.value.colKeys = []
-    pivotData.value.rowTotals = {}
-    pivotData.value.colTotals = {}
-    pivotData.value.filteredData = []
-  }
-})
+const pivotData = computed(() => new PivotData({
+  ...state,
+  data: toRaw(state.data),
+  aggregators: toRaw(state.aggregators)
+}))
 const pivotProps = computed(() => ({
   data: state.data,
   aggregators: state.aggregators,
@@ -408,22 +384,19 @@ watch(
       } as Partial<typeof state>)
     }
   },
-  { deep: true, immediate: true }
+  { immediate: true }
 )
 
 watch(
-  [allFilters, materializedInput],
+  materializedInput,
   () => {
-    // Only update the changed properties, not the entire state
+    // Only update data when materializedInput changes
     updateMultiple({
-      allFilters: allFilters.value,
-      materializedInput: materializedInput.value,
-      data: materializedInput.value  // Ensure data is also updated
+      data: materializedInput.value
     })
   },
   {
-    immediate: true  // Add immediate to ensure initial update
-    // Removed deep: true - this was causing 80% of memory leak
+    immediate: true
   }
 )
 </script>
diff --git a/src/components/pivottable/VPivottable.vue b/src/components/pivottable/VPivottable.vue
index 8370858..a76c993 100644
--- a/src/components/pivottable/VPivottable.vue
+++ b/src/components/pivottable/VPivottable.vue
@@ -9,10 +9,27 @@
 import { computed } from 'vue'
 import TableRenderer from './renderer'
 import { DefaultPropsType } from '@/types'
+import { aggregators, locales } from '@/helper'
 
-const props = defineProps<DefaultPropsType>()
+const props = withDefaults(defineProps<DefaultPropsType>(), {
+  aggregators: () => aggregators,
+  aggregatorName: 'Count',
+  renderers: () => TableRenderer,
+  rendererName: 'Table',
+  rowOrder: 'key_a_to_z',
+  colOrder: 'key_a_to_z',
+  languagePack: () => locales,
+  locale: 'en',
+  cols: () => [],
+  rows: () => [],
+  vals: () => [],
+  valueFilter: () => ({}),
+  sorters: () => ({}),
+  derivedAttributes: () => ({}),
+  tableMaxWidth: 0
+})
 
 const rendererComponent = computed(
-  () => props.renderers[props.rendererName] || TableRenderer.Table
+  () => (props.renderers || TableRenderer)[props.rendererName || 'Table'] || TableRenderer.Table
 )
 </script>
diff --git a/src/components/pivottable/renderer/TSVExportRenderers.vue b/src/components/pivottable/renderer/TSVExportRenderers.vue
index c6e66a4..55cbf1e 100644
--- a/src/components/pivottable/renderer/TSVExportRenderers.vue
+++ b/src/components/pivottable/renderer/TSVExportRenderers.vue
@@ -27,7 +27,7 @@ const headerRow = computed(() => {
   const header = [...pivotData.value.props.rows]
 
   if (colKeys.value.length === 1 && colKeys.value[0].length === 0) {
-    header.push(props.aggregatorName)
+    header.push(props.aggregatorName || 'Count')
   } else {
     colKeys.value.forEach((c: any[]) => header.push(c.join('-')))
   }
diff --git a/src/composables/index.ts b/src/composables/index.ts
index 12f9052..7232b5b 100644
--- a/src/composables/index.ts
+++ b/src/composables/index.ts
@@ -3,5 +3,4 @@ export { useProvideFilterBox, provideFilterBox } from './useProvideFilterbox'
 export { useMaterializeInput } from './useMaterializeInput'
 export { usePropsState } from './usePropsState'
 export { usePivotUiState } from './usePivotUiState'
-export { usePivotData } from './usePivotData'
-export { usePivotModelHistory } from './usePivotModelHistory'
\ No newline at end of file
+export { usePivotData } from './usePivotData'
\ No newline at end of file
diff --git a/src/composables/useMaterializeInput.ts b/src/composables/useMaterializeInput.ts
index 618f4e7..1f61076 100644
--- a/src/composables/useMaterializeInput.ts
+++ b/src/composables/useMaterializeInput.ts
@@ -1,4 +1,4 @@
-import { Ref, ref, watch } from 'vue'
+import { Ref, ref, watch, shallowRef, ShallowRef, onUnmounted } from 'vue'
 import { PivotData } from '@/helper'
 
 export interface UseMaterializeInputOptions {
@@ -7,8 +7,8 @@ export interface UseMaterializeInputOptions {
 
 export interface UseMaterializeInputReturn {
   rawData: Ref<any>
-  allFilters: Ref<Record<string, Record<string, number>>>
-  materializedInput: Ref<any[]>
+  allFilters: ShallowRef<Record<string, Record<string, number>>>
+  materializedInput: ShallowRef<any[]>
   processData: (data: any) => { AllFilters: Record<string, Record<string, number>>; materializedInput: any[] } | void
 }
 
@@ -17,8 +17,9 @@ export function useMaterializeInput (
   options: UseMaterializeInputOptions
 ): UseMaterializeInputReturn {
   const rawData = ref<any>(null)
-  const allFilters = ref<Record<string, Record<string, number>>>({})
-  const materializedInput = ref<any[]>([])
+  // Use shallowRef to prevent deep reactivity on large objects
+  const allFilters = shallowRef<Record<string, Record<string, number>>>({})
+  const materializedInput = shallowRef<any[]>([])
 
   function processData (data: any) {
     if (!data || rawData.value === data) return
@@ -74,6 +75,12 @@ export function useMaterializeInput (
     }
   )
 
+  onUnmounted(() => {
+    allFilters.value = {}
+    materializedInput.value = []
+    rawData.value = null
+  })
+
   return {
     rawData,
     allFilters,
diff --git a/src/composables/usePivotModelHistory.ts b/src/composables/usePivotModelHistory.ts
deleted file mode 100644
index 7fd9a90..0000000
--- a/src/composables/usePivotModelHistory.ts
+++ /dev/null
@@ -1,137 +0,0 @@
-import { ref, Ref, computed, watch } from 'vue'
-import { PivotModelInterface } from '@/types'
-import { clonePivotModel } from '@/utils/pivotModel'
-
-export interface PivotModelHistoryOptions {
-  maxHistory?: number
-  autoSave?: boolean
-}
-
-export interface UsePivotModelHistoryReturn {
-  history: Ref<PivotModelInterface[]>
-  currentIndex: Ref<number>
-  canUndo: Ref<boolean>
-  canRedo: Ref<boolean>
-  pushState: (model: PivotModelInterface) => void
-  undo: () => PivotModelInterface | null
-  redo: () => PivotModelInterface | null
-  clear: () => void
-  getCurrentState: () => PivotModelInterface | null
-}
-
-/**
- * PivotModel의 히스토리를 관리하는 composable
- * @param modelRef PivotModel을 담고 있는 ref
- * @param options 히스토리 관리 옵션
- */
-export function usePivotModelHistory(
-  modelRef: Ref<PivotModelInterface>,
-  options: PivotModelHistoryOptions = {}
-): UsePivotModelHistoryReturn {
-  const { maxHistory = 50, autoSave = true } = options
-
-  const history = ref<PivotModelInterface[]>([])
-  const currentIndex = ref(-1)
-
-  const canUndo = computed(() => currentIndex.value > 0)
-  const canRedo = computed(() => currentIndex.value < history.value.length - 1)
-
-  /**
-   * 새로운 상태를 히스토리에 추가
-   */
-  const pushState = (model: PivotModelInterface) => {
-    // 현재 인덱스 이후의 히스토리는 제거 (새로운 브랜치 생성)
-    if (currentIndex.value < history.value.length - 1) {
-      history.value = history.value.slice(0, currentIndex.value + 1)
-    }
-
-    // 새 상태 추가
-    history.value.push(clonePivotModel(model))
-    
-    // 최대 히스토리 크기 유지
-    if (history.value.length > maxHistory) {
-      history.value = history.value.slice(-maxHistory)
-    }
-    
-    currentIndex.value = history.value.length - 1
-  }
-
-  /**
-   * 이전 상태로 되돌리기
-   */
-  const undo = (): PivotModelInterface | null => {
-    if (!canUndo.value) return null
-
-    currentIndex.value--
-    const previousState = history.value[currentIndex.value]
-    
-    if (modelRef.value) {
-      Object.assign(modelRef.value, clonePivotModel(previousState))
-    }
-    
-    return previousState
-  }
-
-  /**
-   * 다음 상태로 다시 실행
-   */
-  const redo = (): PivotModelInterface | null => {
-    if (!canRedo.value) return null
-
-    currentIndex.value++
-    const nextState = history.value[currentIndex.value]
-    
-    if (modelRef.value) {
-      Object.assign(modelRef.value, clonePivotModel(nextState))
-    }
-    
-    return nextState
-  }
-
-  /**
-   * 히스토리 초기화
-   */
-  const clear = () => {
-    history.value = []
-    currentIndex.value = -1
-  }
-
-  /**
-   * 현재 상태 가져오기
-   */
-  const getCurrentState = (): PivotModelInterface | null => {
-    if (currentIndex.value >= 0 && currentIndex.value < history.value.length) {
-      return history.value[currentIndex.value]
-    }
-    return null
-  }
-
-  // 자동 저장이 활성화된 경우, 모델 변경 감지
-  if (autoSave) {
-    watch(
-      modelRef,
-      (newModel) => {
-        if (newModel) {
-          // 현재 히스토리와 다른 경우에만 추가
-          const current = getCurrentState()
-          if (!current || JSON.stringify(current) !== JSON.stringify(newModel)) {
-            pushState(newModel)
-          }
-        }
-      },
-      { deep: true, immediate: true }
-    )
-  }
-
-  return {
-    history,
-    currentIndex,
-    canUndo,
-    canRedo,
-    pushState,
-    undo,
-    redo,
-    clear,
-    getCurrentState
-  }
-}
\ No newline at end of file
diff --git a/src/index.ts b/src/index.ts
index 98f226e..4b189e9 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -2,7 +2,6 @@ import { VuePivottable, VuePivottableUi } from './components'
 import * as PivotUtilities from './helper'
 import TableRenderer from './components/pivottable/renderer'
 import type { Component } from 'vue'
-export * from './composables'
 
 const Renderer: Record<string, Component> = {
   ...TableRenderer
diff --git a/src/main.ts b/src/main.ts
index 98e2da2..52668a0 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -1,10 +1,6 @@
 import { createApp } from 'vue'
-
 import App from './App.vue'
-// import VuePivottable from '@/'
 
 const app = createApp(App)
 
-// app.component('VuePivottableUi', VuePivottableUi)
-
 app.mount('#app')
diff --git a/src/types/index.ts b/src/types/index.ts
index 35fdfa6..ef06d40 100644
--- a/src/types/index.ts
+++ b/src/types/index.ts
@@ -13,18 +13,18 @@ export interface RendererDefinition {
 export interface DefaultPropsType {
   data: any
   aggregators?: Record<string, AggregatorTemplate>
-  aggregatorName: string
+  aggregatorName?: string
   heatmapMode?: 'full' | 'col' | 'row' | ''
   tableColorScaleGenerator?: (...args: any[]) => any
   tableOptions?: Record<string, any>
-  renderers: Record<string, RendererDefinition>
-  rendererName: string
+  renderers?: Record<string, RendererDefinition>
+  rendererName?: string
   locale?: string
   languagePack?: Record<string, Locale>
   showRowTotal?: boolean
   showColTotal?: boolean
-  cols: string[]
-  rows: string[]
+  cols?: string[]
+  rows?: string[]
   vals?: string[]
   attributes?: string[]
   valueFilter?: Record<string, any>
diff --git a/tests/pivotModel.test.ts b/tests/pivotModel.test.ts
deleted file mode 100644
index add8402..0000000
--- a/tests/pivotModel.test.ts
+++ /dev/null
@@ -1,218 +0,0 @@
-import { describe, it, expect, vi } from 'vitest'
-import { ref } from 'vue'
-import { mount } from '@vue/test-utils'
-import VPivottableUi from '@/components/pivottable-ui/VPivottableUi.vue'
-import { PivotModelInterface } from '@/types'
-import { createPivotModel, pivotModelsEqual } from '@/utils/pivotModel'
-import { PivotModelSerializer } from '@/utils/pivotModelSerializer'
-import { usePivotModelHistory } from '@/composables/usePivotModelHistory'
-
-describe('PivotModel 양방향 바인딩', () => {
-  const mockData = [
-    { region: 'North', quarter: 'Q1', sales: 100 },
-    { region: 'North', quarter: 'Q2', sales: 150 },
-    { region: 'South', quarter: 'Q1', sales: 200 },
-    { region: 'South', quarter: 'Q2', sales: 250 }
-  ]
-
-  it('v-model:pivotModel이 올바르게 작동해야 함', async () => {
-    const pivotModel = ref<PivotModelInterface>(createPivotModel({
-      rows: ['region'],
-      cols: ['quarter'],
-      vals: ['sales'],
-      aggregatorName: 'Sum'
-    }))
-
-    const wrapper = mount(VPivottableUi, {
-      props: {
-        data: mockData,
-        pivotModel: pivotModel.value,
-        'onUpdate:pivotModel': (e: PivotModelInterface) => {
-          pivotModel.value = e
-        }
-      }
-    })
-
-    // emit이 정의되어 있는지 확인
-    expect(wrapper.emitted()).toBeDefined()
-  })
-
-  it('상태 변경 시 emit이 발생해야 함', async () => {
-    const wrapper = mount(VPivottableUi, {
-      props: {
-        data: mockData,
-        pivotModel: createPivotModel()
-      }
-    })
-
-    // 렌더러 변경 시뮬레이션
-    await wrapper.vm.onUpdateRendererName('Table Heatmap')
-    
-    // emit이 발생했는지 확인
-    const emitted = wrapper.emitted('update:pivotModel')
-    expect(emitted).toBeDefined()
-    
-    if (emitted) {
-      const [model] = emitted[0] as [PivotModelInterface]
-      expect(model.rendererName).toBe('Table Heatmap')
-      expect(model.heatmapMode).toBe('full')
-    }
-  })
-
-  it('debounce가 적용되어야 함', async () => {
-    vi.useFakeTimers()
-    
-    const wrapper = mount(VPivottableUi, {
-      props: {
-        data: mockData,
-        pivotModel: createPivotModel()
-      }
-    })
-
-    // 연속적인 상태 변경
-    await wrapper.vm.onUpdateValueFilter({ key: 'region', value: ['North'] })
-    await wrapper.vm.onUpdateValueFilter({ key: 'region', value: ['North', 'South'] })
-    
-    // debounce 전에는 emit이 발생하지 않음
-    expect(wrapper.emitted('update:pivotModel')).toBeUndefined()
-    
-    // 100ms 후 emit 발생
-    vi.advanceTimersByTime(100)
-    expect(wrapper.emitted('update:pivotModel')).toBeDefined()
-    
-    vi.useRealTimers()
-  })
-})
-
-describe('PivotModel 유틸리티', () => {
-  it('두 모델이 동일한지 비교할 수 있어야 함', () => {
-    const model1 = createPivotModel({
-      rows: ['region'],
-      cols: ['quarter'],
-      vals: ['sales']
-    })
-    
-    const model2 = createPivotModel({
-      rows: ['region'],
-      cols: ['quarter'],
-      vals: ['sales']
-    })
-    
-    const model3 = createPivotModel({
-      rows: ['region'],
-      cols: ['quarter'],
-      vals: ['amount'] // 다른 값
-    })
-    
-    expect(pivotModelsEqual(model1, model2)).toBe(true)
-    expect(pivotModelsEqual(model1, model3)).toBe(false)
-  })
-})
-
-describe('PivotModelSerializer', () => {
-  const testModel = createPivotModel({
-    rows: ['region'],
-    cols: ['quarter'],
-    vals: ['sales'],
-    aggregatorName: 'Average',
-    valueFilter: { region: ['North'] }
-  })
-
-  it('JSON 직렬화/역직렬화가 작동해야 함', () => {
-    const json = PivotModelSerializer.serialize(testModel)
-    const deserialized = PivotModelSerializer.deserialize(json)
-    
-    expect(deserialized.rows).toEqual(testModel.rows)
-    expect(deserialized.cols).toEqual(testModel.cols)
-    expect(deserialized.vals).toEqual(testModel.vals)
-    expect(deserialized.aggregatorName).toBe(testModel.aggregatorName)
-    expect(deserialized.valueFilter).toEqual(testModel.valueFilter)
-  })
-
-  it('URL 파라미터 변환이 작동해야 함', () => {
-    const params = PivotModelSerializer.toUrlParams(testModel)
-    
-    expect(params.get('rows')).toBe('region')
-    expect(params.get('cols')).toBe('quarter')
-    expect(params.get('vals')).toBe('sales')
-    expect(params.get('aggregatorName')).toBe('Average')
-    expect(params.get('valueFilter')).toBe(JSON.stringify({ region: ['North'] }))
-    
-    const restored = PivotModelSerializer.fromUrlParams(params)
-    expect(restored.rows).toEqual(['region'])
-    expect(restored.cols).toEqual(['quarter'])
-    expect(restored.valueFilter).toEqual({ region: ['North'] })
-  })
-
-  it('Base64 인코딩/디코딩이 작동해야 함', () => {
-    const base64 = PivotModelSerializer.toBase64(testModel)
-    const decoded = PivotModelSerializer.fromBase64(base64)
-    
-    expect(decoded.rows).toEqual(testModel.rows)
-    expect(decoded.cols).toEqual(testModel.cols)
-    expect(decoded.aggregatorName).toBe(testModel.aggregatorName)
-  })
-})
-
-describe('usePivotModelHistory', () => {
-  it('상태 히스토리를 관리할 수 있어야 함', () => {
-    const model = ref(createPivotModel({
-      rows: ['region'],
-      cols: ['quarter']
-    }))
-    
-    const {
-      history,
-      currentIndex,
-      canUndo,
-      canRedo,
-      pushState,
-      undo,
-      redo
-    } = usePivotModelHistory(model, { autoSave: false })
-    
-    // 초기 상태
-    expect(history.value.length).toBe(0)
-    expect(canUndo.value).toBe(false)
-    expect(canRedo.value).toBe(false)
-    
-    // 상태 추가
-    pushState(model.value)
-    expect(history.value.length).toBe(1)
-    expect(currentIndex.value).toBe(0)
-    
-    // 새로운 상태
-    model.value.rows = ['region', 'product']
-    pushState(model.value)
-    expect(history.value.length).toBe(2)
-    expect(canUndo.value).toBe(true)
-    
-    // 실행 취소
-    const undoState = undo()
-    expect(undoState).toBeDefined()
-    expect(undoState?.rows).toEqual(['region'])
-    expect(canRedo.value).toBe(true)
-    
-    // 다시 실행
-    const redoState = redo()
-    expect(redoState).toBeDefined()
-    expect(redoState?.rows).toEqual(['region', 'product'])
-  })
-
-  it('자동 저장이 작동해야 함', async () => {
-    const model = ref(createPivotModel({
-      rows: ['region']
-    }))
-    
-    const { history } = usePivotModelHistory(model, { autoSave: true })
-    
-    // 초기 상태가 자동 저장됨
-    await new Promise(resolve => setTimeout(resolve, 0))
-    expect(history.value.length).toBe(1)
-    
-    // 모델 변경
-    model.value.rows = ['region', 'product']
-    await new Promise(resolve => setTimeout(resolve, 0))
-    expect(history.value.length).toBe(2)
-  })
-})
\ No newline at end of file