diff --git a/.changeset/light-queens-listen.md b/.changeset/light-queens-listen.md
new file mode 100644
index 000000000..e2a052dc9
--- /dev/null
+++ b/.changeset/light-queens-listen.md
@@ -0,0 +1,12 @@
+---
+"@ui5-language-assistant/vscode-ui5-language-assistant-bas-ext": patch
+"vscode-ui5-language-assistant": patch
+"@ui5-language-assistant/xml-views-completion": patch
+"@ui5-language-assistant/xml-views-definition": patch
+"@ui5-language-assistant/xml-views-validation": patch
+"@ui5-language-assistant/xml-views-tooltip": patch
+"@ui5-language-assistant/language-server": patch
+"@ui5-language-assistant/context": patch
+---
+
+Enable go to controller's definition from XML view file
diff --git a/packages/context/src/manifest.ts b/packages/context/src/manifest.ts
index 0efa86665..29621fd51 100644
--- a/packages/context/src/manifest.ts
+++ b/packages/context/src/manifest.ts
@@ -219,7 +219,8 @@ function collectViewsCustomTemplates(
  * @param manifest manifest of an app
  */
 async function extractManifestDetails(
-  manifest: Manifest
+  manifest: Manifest,
+  manifestPath: string
 ): Promise<ManifestDetails> {
   const customViews = {};
   const targets = manifest["sap.ui5"]?.routing?.targets || {};
@@ -258,6 +259,8 @@ async function extractManifestDetails(
     customViews,
     flexEnabled,
     minUI5Version,
+    appId: manifest["sap.app"]?.id ?? "",
+    manifestPath,
   };
 }
 
@@ -271,6 +274,8 @@ export async function getManifestDetails(
   const manifestPath = await findManifestPath(documentPath);
   if (!manifestPath) {
     return {
+      appId: "",
+      manifestPath: "",
       flexEnabled: false,
       customViews: {},
       mainServicePath: undefined,
@@ -280,13 +285,15 @@ export async function getManifestDetails(
   const manifest = await getUI5Manifest(manifestPath);
   if (!manifest) {
     return {
+      appId: "",
+      manifestPath: "",
       flexEnabled: false,
       customViews: {},
       mainServicePath: undefined,
       minUI5Version: undefined,
     };
   }
-  return extractManifestDetails(manifest);
+  return extractManifestDetails(manifest, manifestPath);
 }
 
 /**
diff --git a/packages/context/src/types.ts b/packages/context/src/types.ts
index ad6b257bd..29b1115de 100644
--- a/packages/context/src/types.ts
+++ b/packages/context/src/types.ts
@@ -46,12 +46,16 @@ export interface ServiceDetails {
  * @param minUI5Version minimum version of UI5
  * @param mainServicePath path to a main OData service
  * @param customViews record of views id and their entity set
+ * @param appId application id under `sap.app` namespace
+ * @param manifestPath path to manifest.json file
  */
 export type ManifestDetails = {
   flexEnabled: boolean;
   minUI5Version: string | undefined;
   mainServicePath: string | undefined;
   customViews: { [name: string]: { entitySet?: string; contextPath?: string } };
+  appId: string;
+  manifestPath: string;
 };
 /**
  * @param framework UI5 framework
diff --git a/packages/context/test/unit/api.test.ts b/packages/context/test/unit/api.test.ts
index 03c9452ba..21b9715ec 100644
--- a/packages/context/test/unit/api.test.ts
+++ b/packages/context/test/unit/api.test.ts
@@ -16,6 +16,8 @@ describe("context", () => {
       const getManifestDetailsStub = jest
         .spyOn(manifest, "getManifestDetails")
         .mockResolvedValue({
+          appId: "",
+          manifestPath: "",
           mainServicePath: "/",
           customViews: {},
           flexEnabled: false,
@@ -54,6 +56,8 @@ describe("context", () => {
       const getManifestDetailsStub = jest
         .spyOn(manifest, "getManifestDetails")
         .mockResolvedValue({
+          appId: "",
+          manifestPath: "",
           mainServicePath: "/",
           customViews: {},
           flexEnabled: false,
diff --git a/packages/context/test/unit/manifest.test.ts b/packages/context/test/unit/manifest.test.ts
index b7f6247ae..5525a5e3e 100644
--- a/packages/context/test/unit/manifest.test.ts
+++ b/packages/context/test/unit/manifest.test.ts
@@ -97,6 +97,8 @@ describe("manifest", () => {
       mainServicePath: "/processor/",
       flexEnabled: true,
       minUI5Version: "1.108.26",
+      appId: "sap.fe.demo.managetravels",
+      manifestPath: join(appRoot, "manifest.json"),
     });
   });
 
@@ -173,8 +175,11 @@ describe("manifest", () => {
     });
     try {
       const result = await getManifestDetails(docPath);
+      // adapt manifestPath
+      result.manifestPath = result.manifestPath.split(appRoot).join(".");
       expect(result).toMatchInlineSnapshot(`
         Object {
+          "appId": "",
           "customViews": Object {
             "template1": Object {
               "contextPath": "/Incidents/to_Customer",
@@ -211,6 +216,7 @@ describe("manifest", () => {
           },
           "flexEnabled": false,
           "mainServicePath": "//",
+          "manifestPath": "./manifest.json",
           "minUI5Version": undefined,
         }
       `);
@@ -256,6 +262,8 @@ describe("manifest", () => {
         mainServicePath: "/processor/",
         flexEnabled: true,
         minUI5Version: "1.108.26",
+        appId: "sap.fe.demo.managetravels",
+        manifestPath: join(appRoot, "manifest.json"),
       });
     } finally {
       mock.restore();
@@ -284,6 +292,8 @@ describe("manifest", () => {
         flexEnabled: false,
         mainServicePath: undefined,
         minUI5Version: undefined,
+        appId: "",
+        manifestPath: "",
       });
     } finally {
       cacheSpy.mockRestore();
@@ -309,6 +319,8 @@ describe("manifest", () => {
         flexEnabled: false,
         mainServicePath: undefined,
         minUI5Version: undefined,
+        appId: "",
+        manifestPath: "",
       });
     } finally {
       cacheGetSpy.mockRestore();
diff --git a/packages/context/test/unit/manifest_with_mock.test.ts b/packages/context/test/unit/manifest_with_mock.test.ts
index d6d93ad1f..6daa6a192 100644
--- a/packages/context/test/unit/manifest_with_mock.test.ts
+++ b/packages/context/test/unit/manifest_with_mock.test.ts
@@ -35,9 +35,11 @@ describe("manifest", () => {
       const result = await getManifestDetails(docPath);
       expect(result).toMatchInlineSnapshot(`
         Object {
+          "appId": "",
           "customViews": Object {},
           "flexEnabled": false,
           "mainServicePath": undefined,
+          "manifestPath": "",
           "minUI5Version": undefined,
         }
       `);
diff --git a/packages/language-server/package.json b/packages/language-server/package.json
index e118056b7..5465b90fc 100644
--- a/packages/language-server/package.json
+++ b/packages/language-server/package.json
@@ -25,6 +25,7 @@
     "node": ">=10.0.0"
   },
   "dependencies": {
+    "@ui5-language-assistant/xml-views-definition": "0.0.1",
     "@ui5-language-assistant/binding": "1.0.27",
     "@sap/swa-for-sapbas-vsx": "1.1.9",
     "@ui5-language-assistant/logger": "0.0.1",
diff --git a/packages/language-server/src/server.ts b/packages/language-server/src/server.ts
index 00902c69a..e852a1c43 100644
--- a/packages/language-server/src/server.ts
+++ b/packages/language-server/src/server.ts
@@ -48,6 +48,7 @@ import { initSwa } from "./swa";
 import { getLogger, setLogLevel } from "./logger";
 import { initI18n } from "./i18n";
 import { isXMLView } from "@ui5-language-assistant/logic-utils";
+import { getDefinition } from "@ui5-language-assistant/xml-views-definition";
 
 const connection = createConnection(ProposedFeatures.all);
 const documents = new TextDocuments(TextDocument);
@@ -91,6 +92,7 @@ connection.onInitialize(
           triggerCharacters: ['"', "'", ":", "<", "/"],
         },
         hoverProvider: true,
+        definitionProvider: true,
         codeActionProvider: true,
         // Each command executes a different code action scenario
         executeCommandProvider: {
@@ -104,6 +106,8 @@ connection.onInitialize(
   }
 );
 
+connection.onDefinition(getDefinition);
+
 connection.onInitialized(async (): Promise<void> => {
   getLogger().info("`onInitialized` event");
   if (hasConfigurationCapability) {
diff --git a/packages/language-server/test/unit/completion-items-utils.ts b/packages/language-server/test/unit/completion-items-utils.ts
index ed1e5ac87..0de57e58f 100644
--- a/packages/language-server/test/unit/completion-items-utils.ts
+++ b/packages/language-server/test/unit/completion-items-utils.ts
@@ -247,6 +247,8 @@ export const getDefaultContext = (ui5Model: UI5SemanticModel): Context => {
     ui5Model,
     customViewId: "",
     manifestDetails: {
+      appId: "",
+      manifestPath: "",
       flexEnabled: false,
       customViews: {},
       mainServicePath: undefined,
diff --git a/packages/language-server/test/unit/snapshots/xml-view-diagnostics/snapshots-utils.ts b/packages/language-server/test/unit/snapshots/xml-view-diagnostics/snapshots-utils.ts
index 56c116a97..e18662649 100644
--- a/packages/language-server/test/unit/snapshots/xml-view-diagnostics/snapshots-utils.ts
+++ b/packages/language-server/test/unit/snapshots/xml-view-diagnostics/snapshots-utils.ts
@@ -124,6 +124,8 @@ export async function computeNewDiagnosticLSPResponse(
   appContext = {
     ...getDefaultContext(ui5Model),
     manifestDetails: {
+      appId: "",
+      manifestPath: "",
       flexEnabled: options ? options.flexEnabled : false,
       customViews: {},
       mainServicePath: undefined,
diff --git a/packages/xml-views-completion/test/unit/utils.ts b/packages/xml-views-completion/test/unit/utils.ts
index 03791022f..1d2828238 100644
--- a/packages/xml-views-completion/test/unit/utils.ts
+++ b/packages/xml-views-completion/test/unit/utils.ts
@@ -81,6 +81,8 @@ export const getDefaultContext = (ui5Model: UI5SemanticModel): Context => {
     ui5Model,
     customViewId: "",
     manifestDetails: {
+      appId: "",
+      manifestPath: "",
       flexEnabled: false,
       customViews: {},
       mainServicePath: undefined,
diff --git a/packages/xml-views-definition/CHANGELOG.md b/packages/xml-views-definition/CHANGELOG.md
new file mode 100644
index 000000000..e69de29bb
diff --git a/packages/xml-views-definition/CONTRIBUTING.md b/packages/xml-views-definition/CONTRIBUTING.md
new file mode 100644
index 000000000..84eb94476
--- /dev/null
+++ b/packages/xml-views-definition/CONTRIBUTING.md
@@ -0,0 +1,4 @@
+# Contribution Guide
+
+This package does not have any unique development flows.
+Please see the top level [Contribution Guide](../../CONTRIBUTING.md).
diff --git a/packages/xml-views-definition/README.md b/packages/xml-views-definition/README.md
new file mode 100644
index 000000000..202e2f270
--- /dev/null
+++ b/packages/xml-views-definition/README.md
@@ -0,0 +1,39 @@
+[![npm (scoped)](https://img.shields.io/npm/v/@ui5-language-assistant/xml-views-definition.svg)](https://www.npmjs.com/package/@ui5-language-assistant/xml-views-definition)
+
+# @ui5-language-assistant/xml-views-definition
+
+Logic for goto definition of Language Server Protocol (LSP).
+
+## Supported scenarios:
+
+### From XML to controllers' definition:
+
+It supports dot or object notation for following XML attributes.
+
+- "controllerName"
+- "template:require"
+- "core:require"
+
+It resolves controllers' definition as follows:
+
+1. It tries to load `<path>.controller.js`
+2. It tries to load `<path>.js`
+3. It tries to load `<path>.controller.ts`
+4. It tries to load `<path>.ts`
+
+## Usage
+
+This package only exposes programmatic APIs, import the package and use the exported APIs
+defined in [api.d.ts](./api.d.ts).
+
+## Support
+
+Please open [issues](https://github.com/SAP/ui5-language-assistant/issues) on github.
+
+## Contributing
+
+See [CONTRIBUTING.md](./CONTRIBUTING.md).
+
+## Licensing
+
+Copyright 2022 SAP SE. Please see our [LICENSE](../../LICENSE) for copyright and license information. Detailed information including third-party components and their licensing/copyright information is available [via the REUSE tool](https://api.reuse.software/info/github.com/SAP/ui5-language-assistant).
diff --git a/packages/xml-views-definition/api.d.ts b/packages/xml-views-definition/api.d.ts
new file mode 100644
index 000000000..01ed9b392
--- /dev/null
+++ b/packages/xml-views-definition/api.d.ts
@@ -0,0 +1 @@
+export { getDefinition } from "./src/api";
diff --git a/packages/xml-views-definition/jest.config.js b/packages/xml-views-definition/jest.config.js
new file mode 100644
index 000000000..406cef575
--- /dev/null
+++ b/packages/xml-views-definition/jest.config.js
@@ -0,0 +1,15 @@
+const { join } = require("path");
+const defaultConfig = require("../../jest.config");
+
+module.exports = {
+  ...defaultConfig,
+  globals: {
+    "ts-jest": {
+      tsconfig: join(__dirname, "tsconfig-test.json"),
+      diagnostics: {
+        // warnOnly: true,
+        exclude: /\.(spec|test)\.ts$/,
+      },
+    },
+  },
+};
diff --git a/packages/xml-views-definition/package.json b/packages/xml-views-definition/package.json
new file mode 100644
index 000000000..e7b7a9909
--- /dev/null
+++ b/packages/xml-views-definition/package.json
@@ -0,0 +1,40 @@
+{
+  "name": "@ui5-language-assistant/xml-views-definition",
+  "version": "0.0.1",
+  "private": true,
+  "description": "Definition logic for UI5 XML-Views",
+  "keywords": [],
+  "files": [
+    ".reuse",
+    "LICENSES",
+    "lib/src",
+    "api.d.ts",
+    "src"
+  ],
+  "main": "lib/src/api.js",
+  "repository": "https://github.com/sap/ui5-language-assistant/",
+  "license": "Apache-2.0",
+  "typings": "./api.d.ts",
+  "dependencies": {
+    "vscode-languageserver": "8.0.2",
+    "@xml-tools/ast": "5.0.0",
+    "vscode-languageserver-textdocument": "1.0.1",
+    "vscode-uri": "2.1.2",
+    "@ui5-language-assistant/context": "4.0.24",
+    "@xml-tools/parser": "1.0.7",
+    "@ui5-language-assistant/binding-parser": "1.0.7"
+  },
+  "devDependencies": {
+    "vscode-languageserver-types": "3.17.2",
+    "@ui5-language-assistant/test-framework": "4.0.12"
+  },
+  "scripts": {
+    "ci": "npm-run-all clean compile lint coverage",
+    "clean": "rimraf ./lib ./coverage ./nyc_output",
+    "compile": "yarn run clean && tsc -p .",
+    "compile:watch": "tsc -p . --watch",
+    "lint": "eslint . --ext .ts --max-warnings=0 --ignore-path=../../.gitignore",
+    "test": "jest --ci --forceExit --detectOpenHandles --maxWorkers=1 --coverage=false",
+    "coverage": "jest --ci --forceExit --detectOpenHandles --maxWorkers=1 --coverage=true"
+  }
+}
diff --git a/packages/xml-views-definition/src/api.ts b/packages/xml-views-definition/src/api.ts
new file mode 100644
index 000000000..141d0eee6
--- /dev/null
+++ b/packages/xml-views-definition/src/api.ts
@@ -0,0 +1,16 @@
+import { Location } from "vscode-languageserver-types";
+import { DefinitionParams } from "vscode-languageserver";
+import { getControllerLocation } from "./controller";
+
+/**
+ * Get definition location(s). This method implements `onDefinition` request of LSP (Language Server Protocol)
+ *
+ * @param param definition param
+ * @returns definition location(s)
+ */
+export async function getDefinition(
+  param: DefinitionParams
+): Promise<Location[]> {
+  const ctrLoc = await getControllerLocation(param);
+  return [...ctrLoc];
+}
diff --git a/packages/xml-views-definition/src/controller/index.ts b/packages/xml-views-definition/src/controller/index.ts
new file mode 100644
index 000000000..f2aaa57e2
--- /dev/null
+++ b/packages/xml-views-definition/src/controller/index.ts
@@ -0,0 +1,99 @@
+import { Location, Position } from "vscode-languageserver-types";
+import { DefinitionParams } from "vscode-languageserver";
+import { readFile } from "fs/promises";
+import { parse, DocumentCstNode } from "@xml-tools/parser";
+import { buildAst } from "@xml-tools/ast";
+import { buildFileUri, getAttribute } from "../utils";
+import { URI } from "vscode-uri";
+import { isContext, getContext } from "@ui5-language-assistant/context";
+import {
+  parseBinding,
+  positionInside,
+} from "@ui5-language-assistant/binding-parser";
+
+const allowedAttrs = new Set([
+  "controllerName",
+  "template:require",
+  "core:require",
+]);
+const exts = [".controller.js", ".js", ".controller.ts", ".ts"];
+
+/**
+ * Get controller location.
+ * It searches local file system for file with `.controller.js`, `.js`, `.controller.ts` or `.ts` extension.
+ *
+ * @param param definition param
+ * @returns array of location
+ */
+export async function getControllerLocation(
+  param: DefinitionParams
+): Promise<Location[]> {
+  const { position, textDocument } = param;
+  const documentUri = textDocument.uri;
+  const documentPath = URI.parse(documentUri).fsPath;
+  const text = await readFile(documentPath, "utf-8");
+  const { cst, tokenVector } = parse(text);
+  const ast = buildAst(cst as DocumentCstNode, tokenVector);
+  if (!ast.rootElement) {
+    return [];
+  }
+  const attr = getAttribute(ast.rootElement, position, allowedAttrs);
+  if (!attr) {
+    return [];
+  }
+
+  const context = await getContext(documentPath);
+  if (!isContext(context)) {
+    return [];
+  }
+  // value must be present - otherwise getAttribute method returns undefined
+  const value = attr.value as string;
+  const id = context.manifestDetails.appId;
+  const manifestPath = context.manifestDetails.manifestPath;
+
+  if (value.indexOf("/") !== -1) {
+    // handle object notation
+    /* istanbul ignore next */
+    const character = attr.syntax.value?.startColumn ?? 0;
+    /* istanbul ignore next */
+    const line = (attr.syntax.value && attr.syntax.value.startLine - 1) ?? 0; // zero based index
+    const pos: Position = { character, line };
+    const result = parseBinding(value, pos);
+    /* istanbul ignore next */
+    const el = result.ast.bindings[0]?.elements.find((i) =>
+      /* istanbul ignore next */
+      positionInside(i.value?.range, position)
+    );
+    if (!el) {
+      return [];
+    }
+    /* istanbul ignore next */
+    if (el.value?.type !== "string-value") {
+      return [];
+    }
+    const text = el.value.text.split("/").join(".").replace(/['"]/g, "");
+
+    const fileUri = await buildFileUri(id, text, manifestPath, exts);
+    if (!fileUri) {
+      return [];
+    }
+    return [
+      {
+        uri: fileUri,
+        range: { start: position, end: position },
+      },
+    ];
+  }
+
+  // handle dot notation
+  const fileUri = await buildFileUri(id, value, manifestPath, exts);
+  if (!fileUri) {
+    return [];
+  }
+  return [
+    {
+      uri: fileUri,
+      range: { start: position, end: position },
+    },
+  ];
+}
diff --git a/packages/xml-views-definition/src/utils/file.ts b/packages/xml-views-definition/src/utils/file.ts
new file mode 100644
index 000000000..3039134b8
--- /dev/null
+++ b/packages/xml-views-definition/src/utils/file.ts
@@ -0,0 +1,50 @@
+import { access, constants } from "fs";
+import { join, dirname } from "path";
+
+/**
+ * Check if path exists on file system.
+ *
+ * @param filePath absolute path to a file on file system.
+ * @returns boolean
+ */
+export async function pathExists(filePath: string): Promise<boolean> {
+  return new Promise((resolve) => {
+    access(filePath, constants.F_OK, (err) => {
+      if (err) {
+        resolve(false);
+      } else {
+        resolve(true);
+      }
+    });
+  });
+}
+
+/**
+ * Build absolute file uri based on manifest path and value without namespace.
+ *
+ * @param namespace app id or app namespace
+ * @param value value with namespace
+ * @param manifestPath path to manifest
+ * @param exts file extension
+ * @returns file uri or undefined
+ */
+export async function buildFileUri(
+  namespace: string,
+  value: string,
+  manifestPath: string,
+  exts: string[]
+): Promise<string | undefined> {
+  /* istanbul ignore next */
+  const parts = value.split(namespace);
+  const valueWithoutNS = parts.filter((i) => !!i).join(".");
+  /* istanbul ignore next */
+  const withoutNSParts = valueWithoutNS.split(".");
+  const absolutePath = join(dirname(manifestPath), ...withoutNSParts);
+
+  for (const ext of exts) {
+    const filePath = `${absolutePath}${ext}`;
+    if (await pathExists(filePath)) {
+      return filePath;
+    }
+  }
+}
diff --git a/packages/xml-views-definition/src/utils/index.ts b/packages/xml-views-definition/src/utils/index.ts
new file mode 100644
index 000000000..31a3f125d
--- /dev/null
+++ b/packages/xml-views-definition/src/utils/index.ts
@@ -0,0 +1,62 @@
+import { SourcePosition, XMLAttribute, XMLElement } from "@xml-tools/ast";
+import { Position } from "vscode-languageserver-textdocument";
+export { buildFileUri, pathExists } from "./file";
+
+/**
+ * Check if cursor position is contained in source position.
+ *
+ * @param sourcePos source position
+ * @param cursorPosition cursor position
+ * @returns boolean
+ */
+export function positionContained(
+  sourcePos: SourcePosition,
+  cursorPosition: Position
+): boolean {
+  if (sourcePos.startLine !== cursorPosition.line + 1) {
+    return false;
+  }
+  if (
+    sourcePos.startColumn <= cursorPosition.character &&
+    sourcePos.endColumn >= cursorPosition.character
+  ) {
+    return true;
+  }
+  return false;
+}
+
+/**
+ * Get attribute from xml element.
+ *
+ * @param element xml element
+ * @param position cursor position
+ * @param allowedAttrs allowed xml attributes
+ * @returns xml attribute or undefined
+ */
+export function getAttribute(
+  element: XMLElement,
+  position: Position,
+  allowedAttrs: Set<string>
+): XMLAttribute | undefined {
+  for (const attr of element.attributes) {
+    if (allowedAttrs.has(attr.key ?? "")) {
+      const attrPositionContain = positionContained(attr.position, position);
+      if (attrPositionContain && attr.syntax.value) {
+        const valuePositionContain = positionContained(
+          attr.syntax.value,
+          position
+        );
+        if (valuePositionContain) {
+          return attr;
+        }
+      }
+    }
+  }
+  const subElements = element.subElements || [];
+  for (const subElement of subElements) {
+    const result = getAttribute(subElement, position, allowedAttrs);
+    if (result) {
+      return result;
+    }
+  }
+}
diff --git a/packages/xml-views-definition/test/unit/api.test.ts b/packages/xml-views-definition/test/unit/api.test.ts
new file mode 100644
index 000000000..bb3e424e3
--- /dev/null
+++ b/packages/xml-views-definition/test/unit/api.test.ts
@@ -0,0 +1,20 @@
+import { DefinitionParams, Range, Position } from "vscode-languageserver";
+import * as controller from "../../src/controller";
+import { getDefinition } from "../../src/api";
+describe("api", () => {
+  test("getDefinition", async () => {
+    // arrange
+    const parma = {} as DefinitionParams;
+    const data: Position = { character: 0, line: 0 };
+    const range: Range = { start: data, end: data };
+    const returnData = [{ range, uri: "file-uri" }];
+    const spyController = jest
+      .spyOn(controller, "getControllerLocation")
+      .mockResolvedValue(returnData);
+    // act
+    const result = await getDefinition(parma);
+    // assert
+    expect(result).toEqual(returnData);
+    expect(spyController).toHaveBeenNthCalledWith(1, parma);
+  });
+});
diff --git a/packages/xml-views-definition/test/unit/controller/index.test.ts b/packages/xml-views-definition/test/unit/controller/index.test.ts
new file mode 100644
index 000000000..f9ed18919
--- /dev/null
+++ b/packages/xml-views-definition/test/unit/controller/index.test.ts
@@ -0,0 +1,296 @@
+import {
+  Config,
+  ProjectName,
+  ProjectType,
+  TestFramework,
+  CURSOR_ANCHOR,
+} from "@ui5-language-assistant/test-framework";
+import { DefinitionParams, Position } from "vscode-languageserver";
+import * as fs from "fs";
+import * as context from "@ui5-language-assistant/context";
+import { getControllerLocation } from "../../../src/controller";
+import { join } from "path";
+
+describe("index", () => {
+  let testFramework: TestFramework;
+  let uri = "";
+  const pathSegments = ["src", "view", "App.view.xml"];
+  beforeEach(function () {
+    const useConfig: Config = {
+      projectInfo: {
+        name: ProjectName.tsFreeStyle,
+        type: ProjectType.UI5,
+        npmInstall: false,
+      },
+    };
+    testFramework = new TestFramework(useConfig);
+    uri = testFramework.getFileUri(pathSegments);
+  });
+  afterEach(() => {
+    jest.resetAllMocks();
+  });
+  describe("getControllerLocation", () => {
+    test("rootElement undefined - empty location", async () => {
+      // arrange
+      const param: DefinitionParams = {
+        position: {} as Position,
+        textDocument: { uri: "file:\\dummy" },
+      };
+      jest.spyOn(fs.promises, "readFile").mockResolvedValue("");
+      // act
+      const result = await getControllerLocation(param);
+      // assert
+      expect(result).toEqual([]);
+    });
+    test("wrong position - empty location", async () => {
+      // arrange
+      const param: DefinitionParams = {
+        position: { line: 0, character: 0 },
+        textDocument: { uri },
+      };
+      // act
+      const result = await getControllerLocation(param);
+      // assert
+      expect(result).toEqual([]);
+    });
+    test("getContext error - empty location", async () => {
+      // arrange
+      const content = `
+<mvc:View
+	controllerName="sap.demo.ui5typescripttutorialapp.controller${CURSOR_ANCHOR}.App"
+	displayBlock="true"
+	xmlns="sap.m"
+	xmlns:mvc="sap.ui.core.mvc">
+</mvc:View>
+        `;
+      const { offset } = await testFramework.updateFile(pathSegments, content);
+      const { textDocumentPosition } = testFramework.toVscodeTextDocument(
+        uri,
+        content,
+        offset
+      );
+      const position = textDocumentPosition.position;
+      const param: DefinitionParams = {
+        position,
+        textDocument: { uri },
+      };
+      jest
+        .spyOn(context, "getContext")
+        .mockResolvedValue(new Error("error-raised"));
+      // act
+      const result = await getControllerLocation(param);
+      // assert
+      expect(result).toEqual([]);
+    });
+    describe("object notation", () => {
+      test("wrong position - empty location", async () => {
+        // arrange
+        const content = `
+<core:FragmentDefinition
+	core:require="{ MessageToast: 'sap/m/MessageToast', app: ${CURSOR_ANCHOR} 'sap/demo/ui5typescripttutorialapp/controller/App' }"
+	xmlns:core="sap.ui.core">
+</core:FragmentDefinition>
+        `;
+        const { offset } = await testFramework.updateFile(
+          pathSegments,
+          content
+        );
+        const { textDocumentPosition } = testFramework.toVscodeTextDocument(
+          uri,
+          content,
+          offset
+        );
+
+        const param: DefinitionParams = {
+          position: textDocumentPosition.position,
+          textDocument: { uri },
+        };
+        // act
+        const result = await getControllerLocation(param);
+        // assert
+        expect(result).toEqual([]);
+      });
+      test("can not build file uri - empty location", async () => {
+        // arrange
+        const content = `
+<core:FragmentDefinition
+	core:require="{ MessageToast: 'sap/m/MessageToast', app: 'sap${CURSOR_ANCHOR}/demo/ui5typescripttutorialapp/controller/App' }"
+	xmlns:core="sap.ui.core">
+</core:FragmentDefinition>
+        `;
+        const { offset } = await testFramework.updateFile(
+          pathSegments,
+          content
+        );
+        const { textDocumentPosition } = testFramework.toVscodeTextDocument(
+          uri,
+          content,
+          offset
+        );
+
+        const param: DefinitionParams = {
+          position: textDocumentPosition.position,
+          textDocument: { uri },
+        };
+        // remove file
+        await fs.promises.unlink(
+          join(
+            testFramework.getProjectRoot(),
+            "src",
+            "controller",
+            "App.controller.ts"
+          )
+        );
+        // act
+        const result = await getControllerLocation(param);
+        // assert
+        expect(result).toEqual([]);
+      });
+      test("correct position", async () => {
+        // arrange
+        const content = `
+<core:FragmentDefinition
+	core:require="{ MessageToast: 'sap/m/MessageToast', app: 'sap/demo/ui5typescript${CURSOR_ANCHOR}tutorialapp/controller/App' }"
+	xmlns:core="sap.ui.core">
+</core:FragmentDefinition>
+        `;
+        const { offset } = await testFramework.updateFile(
+          pathSegments,
+          content
+        );
+        const { textDocumentPosition } = testFramework.toVscodeTextDocument(
+          uri,
+          content,
+          offset
+        );
+        const position = textDocumentPosition.position;
+        const param: DefinitionParams = {
+          position,
+          textDocument: { uri },
+        };
+        // act
+        const result = await getControllerLocation(param);
+        // assert
+        expect(result).toEqual([
+          {
+            uri: join(
+              testFramework.getProjectRoot(),
+              "src",
+              "controller",
+              "App.controller.ts"
+            ),
+            range: { start: position, end: position },
+          },
+        ]);
+      });
+    });
+    describe("dot notation", () => {
+      test("wrong position - empty location", async () => {
+        // arrange
+        const content = `
+<mvc:View
+	controllerName${CURSOR_ANCHOR}="sap.demo.ui5typescripttutorialapp.controller.App"
+	displayBlock="true"
+	xmlns="sap.m"
+	xmlns:mvc="sap.ui.core.mvc">
+</mvc:View>
+        `;
+        const { offset } = await testFramework.updateFile(
+          pathSegments,
+          content
+        );
+        const { textDocumentPosition } = testFramework.toVscodeTextDocument(
+          uri,
+          content,
+          offset
+        );
+
+        const param: DefinitionParams = {
+          position: textDocumentPosition.position,
+          textDocument: { uri },
+        };
+        // act
+        const result = await getControllerLocation(param);
+        // assert
+        expect(result).toEqual([]);
+      });
+      test("can not build file uri - empty location", async () => {
+        // arrange
+        const content = `
+<mvc:View
+	controllerName="sap.${CURSOR_ANCHOR}demo.ui5typescripttutorialapp.controller.App"
+	displayBlock="true"
+	xmlns="sap.m"
+	xmlns:mvc="sap.ui.core.mvc">
+</mvc:View>
+        `;
+        const { offset } = await testFramework.updateFile(
+          pathSegments,
+          content
+        );
+        const { textDocumentPosition } = testFramework.toVscodeTextDocument(
+          uri,
+          content,
+          offset
+        );
+
+        const param: DefinitionParams = {
+          position: textDocumentPosition.position,
+          textDocument: { uri },
+        };
+        // remove file
+        await fs.promises.unlink(
+          join(
+            testFramework.getProjectRoot(),
+            "src",
+            "controller",
+            "App.controller.ts"
+          )
+        );
+        // act
+        const result = await getControllerLocation(param);
+        // assert
+        expect(result).toEqual([]);
+      });
+      test("correct position", async () => {
+        // arrange
+        const content = `
+<mvc:View
+	controllerName="sap.demo.ui5typescripttutorialapp.controller${CURSOR_ANCHOR}.App"
+	displayBlock="true"
+	xmlns="sap.m"
+	xmlns:mvc="sap.ui.core.mvc">
+</mvc:View>
+        `;
+        const { offset } = await testFramework.updateFile(
+          pathSegments,
+          content
+        );
+        const { textDocumentPosition } = testFramework.toVscodeTextDocument(
+          uri,
+          content,
+          offset
+        );
+        const position = textDocumentPosition.position;
+        const param: DefinitionParams = {
+          position,
+          textDocument: { uri },
+        };
+        // act
+        const result = await getControllerLocation(param);
+        // assert
+        expect(result).toEqual([
+          {
+            uri: join(
+              testFramework.getProjectRoot(),
+              "src",
+              "controller",
+              "App.controller.ts"
+            ),
+            range: { start: position, end: position },
+          },
+        ]);
+      });
+    });
+  });
+});
diff --git a/packages/xml-views-definition/test/unit/data/controller/App.controller.js b/packages/xml-views-definition/test/unit/data/controller/App.controller.js
new file mode 100644
index 000000000..9a5fa5bad
--- /dev/null
+++ b/packages/xml-views-definition/test/unit/data/controller/App.controller.js
@@ -0,0 +1 @@
+// dummy for test
diff --git a/packages/xml-views-definition/test/unit/data/controller/AppHelper.js b/packages/xml-views-definition/test/unit/data/controller/AppHelper.js
new file mode 100644
index 000000000..9a5fa5bad
--- /dev/null
+++ b/packages/xml-views-definition/test/unit/data/controller/AppHelper.js
@@ -0,0 +1 @@
+// dummy for test
diff --git a/packages/xml-views-definition/test/unit/data/controller/Handler.ts b/packages/xml-views-definition/test/unit/data/controller/Handler.ts
new file mode 100644
index 000000000..9a5fa5bad
--- /dev/null
+++ b/packages/xml-views-definition/test/unit/data/controller/Handler.ts
@@ -0,0 +1 @@
+// dummy for test
diff --git a/packages/xml-views-definition/test/unit/data/controller/Helper.controller.ts b/packages/xml-views-definition/test/unit/data/controller/Helper.controller.ts
new file mode 100644
index 000000000..9a5fa5bad
--- /dev/null
+++ b/packages/xml-views-definition/test/unit/data/controller/Helper.controller.ts
@@ -0,0 +1 @@
+// dummy for test
diff --git a/packages/xml-views-definition/test/unit/utils/file.test.ts b/packages/xml-views-definition/test/unit/utils/file.test.ts
new file mode 100644
index 000000000..4c48e5d03
--- /dev/null
+++ b/packages/xml-views-definition/test/unit/utils/file.test.ts
@@ -0,0 +1,127 @@
+import { pathExists, buildFileUri } from "../../../src/utils";
+import { join } from "path";
+
+describe("file", () => {
+  describe("pathExists", () => {
+    test("returns true if path exists", async () => {
+      // arrange
+      const filePath = join(__dirname, "index.test.ts");
+      // act
+      const result = await pathExists(filePath);
+      // assert
+      expect(result).toBe(true);
+    });
+
+    test("returns false if path does not exist", async () => {
+      // act
+      const result = await pathExists("path-does-not-exits");
+      // assert
+      expect(result).toBe(false);
+    });
+  });
+  describe("buildFileUri", () => {
+    const exts = [".controller.js", ".js", ".controller.ts", ".ts"];
+    const mockManifestPath = join(__dirname, "..", "data", "manifest.json");
+
+    test("file uri when matching controller file exists with .controller.js extension", async () => {
+      // arrange
+      const namespace = "sap.ui.demo.walkthrough";
+      const value = "sap.ui.demo.walkthrough.controller.App";
+      const expectedFileUri = join(
+        __dirname,
+        "..",
+        "data",
+        "controller",
+        "App.controller.js"
+      );
+      // act
+      const result = await buildFileUri(
+        namespace,
+        value,
+        mockManifestPath,
+        exts
+      );
+      // assert
+      expect(result).toBe(expectedFileUri);
+    });
+    test("file uri when matching controller file exists with .js extension", async () => {
+      // arrange
+      const namespace = "sap.ui.demo.walkthrough";
+      const value = "sap.ui.demo.walkthrough.controller.AppHelper";
+      const expectedFileUri = join(
+        __dirname,
+        "..",
+        "data",
+        "controller",
+        "AppHelper.js"
+      );
+      // act
+      const result = await buildFileUri(
+        namespace,
+        value,
+        mockManifestPath,
+        exts
+      );
+      // assert
+      expect(result).toBe(expectedFileUri);
+    });
+
+    test("file uri when matching controller file exists with .controller.ts extension", async () => {
+      // arrange
+      const namespace = "sap.ui.demo.walkthrough";
+      const value = "sap.ui.demo.walkthrough.controller.Helper";
+      const expectedFileUri = join(
+        __dirname,
+        "..",
+        "data",
+        "controller",
+        "Helper.controller.ts"
+      );
+      // act
+      const result = await buildFileUri(
+        namespace,
+        value,
+        mockManifestPath,
+        exts
+      );
+      // assert
+      expect(result).toBe(expectedFileUri);
+    });
+    test("file uri when matching controller file exists with .ts extension", async () => {
+      // arrange
+      const namespace = "sap.ui.demo.walkthrough";
+      const value = "sap.ui.demo.walkthrough.controller.Handler";
+      const expectedFileUri = join(
+        __dirname,
+        "..",
+        "data",
+        "controller",
+        "Handler.ts"
+      );
+      // act
+      const result = await buildFileUri(
+        namespace,
+        value,
+        mockManifestPath,
+        exts
+      );
+      // assert
+      expect(result).toBe(expectedFileUri);
+    });
+
+    test("undefined when no matching controller file exists", async () => {
+      // arrange
+      const namespace = "sap.ui.demo.walkthrough";
+      const value = "sap.ui.demo.walkthrough.controller.Abc";
+      // act
+      const result = await buildFileUri(
+        namespace,
+        value,
+        mockManifestPath,
+        exts
+      );
+      // assert
+      expect(result).toBeUndefined();
+    });
+  });
+});
diff --git a/packages/xml-views-definition/test/unit/utils/index.test.ts b/packages/xml-views-definition/test/unit/utils/index.test.ts
new file mode 100644
index 000000000..04b19a093
--- /dev/null
+++ b/packages/xml-views-definition/test/unit/utils/index.test.ts
@@ -0,0 +1,135 @@
+import { Position } from "vscode-languageserver-textdocument";
+import { SourcePosition, XMLElement } from "@xml-tools/ast";
+import { getAttribute, positionContained } from "../../../src/utils";
+import { parse, DocumentCstNode } from "@xml-tools/parser";
+import { buildAst } from "@xml-tools/ast";
+
+function getXmlElement(text: string): XMLElement {
+  const { cst, tokenVector } = parse(text);
+  const ast = buildAst(cst as DocumentCstNode, tokenVector);
+  return ast.rootElement as XMLElement;
+}
+const allowedAttrs = new Set([
+  "controllerName",
+  "template:require",
+  "core:require",
+]);
+
+describe("index", () => {
+  describe("getAttribute", () => {
+    test("no attributes - undefined", () => {
+      // arrange
+      const element = { attributes: [] } as unknown as XMLElement;
+      const position = {} as Position;
+      // act
+      const result = getAttribute(element, position, allowedAttrs);
+      // assert
+      expect(result).toBeUndefined();
+    });
+    test("for controllerName attribute", () => {
+      // arrange
+      const text = `
+      <mvc:View
+          xmlns:core="sap.ui.core"
+          controllerName="sap.ui.demo.walkthrough.controller.Main"
+      >
+      </mvc:View>
+      `;
+      const element = getXmlElement(text);
+      const position: Position = { line: 3, character: 32 };
+      // act
+      const result = getAttribute(element, position, allowedAttrs);
+      // assert
+      expect(result?.value).toEqual("sap.ui.demo.walkthrough.controller.Main");
+    });
+    test("for template:require attribute", () => {
+      // arrange
+      const text = `
+        <core:FragmentDefinition
+            template:require="sap.ui.demo.walkthrough.controller.Helper"
+            xmlns:core="sap.ui.core">
+        </core:FragmentDefinition>
+      `;
+      const element = getXmlElement(text);
+      const position: Position = { line: 2, character: 32 };
+      // act
+      const result = getAttribute(element, position, allowedAttrs);
+      // assert
+      expect(result?.value).toEqual(
+        "sap.ui.demo.walkthrough.controller.Helper"
+      );
+    });
+    test("for core:require attribute", () => {
+      // arrange
+      const text = `
+        <core:FragmentDefinition
+            xmlns:core="sap.ui.core"
+            xmlns:macros="sap.fe.macros"
+        >
+            <VBox
+                core:require="{ MessageToast: 'sap/m/MessageToast', helper: 'sap/ui/demo/walkthrough/controller/Helper' }"
+            />
+        </core:FragmentDefinition>
+      `;
+      const element = getXmlElement(text);
+      const position: Position = { line: 6, character: 92 };
+      // act
+      const result = getAttribute(element, position, allowedAttrs);
+      // assert
+      expect(result?.value).toEqual(
+        "{ MessageToast: 'sap/m/MessageToast', helper: 'sap/ui/demo/walkthrough/controller/Helper' }"
+      );
+    });
+  });
+  describe("positionContained", () => {
+    test("true - cursor position is contained in source position", () => {
+      // arrange
+      const sourcePos: SourcePosition = {
+        startLine: 1,
+        startColumn: 2,
+        endColumn: 4,
+        endLine: 2,
+        endOffset: 20,
+        startOffset: 0,
+      };
+      const cursorPosition = { line: 0, character: 3 };
+      // act
+      const result = positionContained(sourcePos, cursorPosition);
+      // assert
+      expect(result).toBe(true);
+    });
+
+    test("false - cursor position is not contained in source position", () => {
+      // arrange
+      const sourcePos = {
+        startLine: 1,
+        startColumn: 2,
+        endColumn: 4,
+        endLine: 2,
+        endOffset: 20,
+        startOffset: 0,
+      } as SourcePosition;
+      const cursorPosition = { line: 0, character: 1 };
+      // act
+      const result = positionContained(sourcePos, cursorPosition);
+      // assert
+      expect(result).toBe(false);
+    });
+    test("false - not on same line", () => {
+      // arrange
+      const sourcePos = {
+        startLine: 1,
+        startColumn: 2,
+        endColumn: 4,
+        endLine: 2,
+        endOffset: 20,
+        startOffset: 0,
+      } as SourcePosition;
+      const cursorPosition = { line: 5, character: 1 };
+      // act
+      const result = positionContained(sourcePos, cursorPosition);
+      // assert
+      expect(result).toBe(false);
+    });
+  });
+});
diff --git a/packages/xml-views-definition/tsconfig-test.json b/packages/xml-views-definition/tsconfig-test.json
new file mode 100644
index 000000000..fb1f25450
--- /dev/null
+++ b/packages/xml-views-definition/tsconfig-test.json
@@ -0,0 +1,4 @@
+{
+  "extends": "./tsconfig.json",
+  "include": ["src/**/*.ts", "test/**/*.ts"]
+}
diff --git a/packages/xml-views-definition/tsconfig.json b/packages/xml-views-definition/tsconfig.json
new file mode 100644
index 000000000..7ecd7b544
--- /dev/null
+++ b/packages/xml-views-definition/tsconfig.json
@@ -0,0 +1,9 @@
+{
+  "extends": "../../tsconfig.base.json",
+  "compilerOptions": {
+    "rootDir": ".",
+    "outDir": "lib",
+    "baseUrl": "."
+  },
+  "include": ["src/**/*", "test/**/*", "api.d.ts"]
+}
diff --git a/packages/xml-views-tooltip/test/unit/utils.ts b/packages/xml-views-tooltip/test/unit/utils.ts
index 552a58b11..ea6af434d 100644
--- a/packages/xml-views-tooltip/test/unit/utils.ts
+++ b/packages/xml-views-tooltip/test/unit/utils.ts
@@ -6,6 +6,8 @@ export const getDefaultContext = (ui5Model: UI5SemanticModel): Context => {
     ui5Model,
     customViewId: "",
     manifestDetails: {
+      appId: "",
+      manifestPath: "",
       flexEnabled: false,
       customViews: {},
       mainServicePath: undefined,
diff --git a/packages/xml-views-validation/test/unit/test-utils.ts b/packages/xml-views-validation/test/unit/test-utils.ts
index f060eece5..4bcaa95a7 100644
--- a/packages/xml-views-validation/test/unit/test-utils.ts
+++ b/packages/xml-views-validation/test/unit/test-utils.ts
@@ -130,6 +130,8 @@ export const getDefaultContext = (ui5Model: UI5SemanticModel): Context => {
     ui5Model,
     customViewId: "",
     manifestDetails: {
+      appId: "",
+      manifestPath: "",
       flexEnabled: false,
       customViews: {},
       mainServicePath: undefined,
diff --git a/sonar-project.properties b/sonar-project.properties
index 7d7d51116..ecfb85bff 100644
--- a/sonar-project.properties
+++ b/sonar-project.properties
@@ -20,7 +20,8 @@ sonar.javascript.lcov.reportPaths=packages/binding/reports/test/unit/coverage/lc
                                 packages/xml-views-completion/reports/test/unit/coverage/lcov.info, \
                                 packages/xml-views-quick-fix/reports/test/unit/coverage/lcov.info, \
                                 packages/xml-views-tooltip/reports/test/unit/coverage/lcov.info, \
-                                packages/xml-views-validation/reports/test/unit/coverage/lcov.info
+                                packages/xml-views-validation/reports/test/unit/coverage/lcov.info, \
+                                packages/xml-views-definition/reports/test/unit/coverage/lcov.info
                                 
 sonar.testExecutionReportPaths=packages/binding/reports/test/unit/coverage/sonar-report.xml, \
                                 packages/binding-parser/reports/test/unit/coverage/sonar-report.xml, \
@@ -36,4 +37,5 @@ sonar.testExecutionReportPaths=packages/binding/reports/test/unit/coverage/sonar
                                 packages/xml-views-completion/reports/test/unit/coverage/sonar-report.xml, \
                                 packages/xml-views-quick-fix/reports/test/unit/coverage/sonar-report.xml, \
                                 packages/xml-views-tooltip/reports/test/unit/coverage/sonar-report.xml, \
-                                packages/xml-views-validation/reports/test/unit/coverage/sonar-report.xml
+                                packages/xml-views-validation/reports/test/unit/coverage/sonar-report.xml, \
+                                packages/xml-views-definition/reports/test/unit/coverage/sonar-report.xml
diff --git a/tsconfig.base.json b/tsconfig.base.json
index 6bb1e6964..e93ccac4f 100644
--- a/tsconfig.base.json
+++ b/tsconfig.base.json
@@ -11,7 +11,7 @@
     "forceConsistentCasingInFileNames": true,
     "strict": true,
     "noImplicitAny": false,
-    "noImplicitReturns": true,
+    "noImplicitReturns": false,
     "esModuleInterop": true,
     "skipLibCheck": true,
     "types": ["node", "jest", "jest-extended"]
diff --git a/tsconfig.json b/tsconfig.json
index de0290af0..d50540f55 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -30,6 +30,9 @@
     {
       "path": "./packages/xml-views-validation"
     },
+    {
+      "path": "./packages/xml-views-definition"
+    },
     {
       "path": "./test-packages/test-utils"
     },