diff --git a/zh-cn/application-dev/reference/apis/js-apis-appControl.md b/zh-cn/application-dev/reference/apis/js-apis-appControl.md
index 493dfa3055eaed8f71d34ede25ac761b3de30e05..12037b1072c7d7935418bfab7642102f997e3e0a 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-appControl.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-appControl.md
@@ -50,18 +50,24 @@ setDisposedStatus(appId: string, disposedWant: Want): Promise\<void>
 **示例：**
 
 ```ts
+import { BusinessError } from '@ohos.base';
+import Want from '@ohos.app.ability.Want';
+import appControl from '@ohos.bundle.appControl';
+
 let appId = "com.example.myapplication_xxxxx";
-let want = {bundleName: 'com.example.myapplication'};
+let want:Want = {bundleName: 'com.example.myapplication'};
 
 try {
     appControl.setDisposedStatus(appId, want)
         .then(() => {
             console.info('setDisposedStatus success');
-        }).catch((error) => {
-            console.error('setDisposedStatus failed ' + error.message);
+        }).catch((error: BusinessError) => {
+            let message = (error as BusinessError).message;
+            console.error('setDisposedStatus failed ' + message);
         });
 } catch (error) {
-    console.error('setDisposedStatus failed ' + error.message);
+    let message = (error as BusinessError).message;
+    console.error('setDisposedStatus failed ' + message);
 }
 ```
 
@@ -81,7 +87,7 @@ setDisposedStatus(appId: string, disposedWant: Want, callback: AsyncCallback\<vo
 
 | 参数名       | 类型                              | 必填   | 说明                                    |
 | ----------- | ------------------------------- | ---- | --------------------------------------- |
-| appId  | string | 是    | 需要设置处置的应用的appId<br> appId是应用的唯一标识，由应用Bundle名称和签名信息决定，获取方法参见[获取应用的appId](#获取应用的appid)。                      |
+| appId  | string | 是    | 需要设置处置的应用的appId。<br> appId是应用的唯一标识，由应用Bundle名称和签名信息决定，获取方法参见[获取应用的appId](#获取应用的appid)。                      |
 | disposedWant | Want  | 是 | 对应用的处置意图。 |
 | callback    | AsyncCallback\<void> | 是    | 回调函数，当设置处置状态成功，err为null，否则为错误对象。 |
 
@@ -96,19 +102,25 @@ setDisposedStatus(appId: string, disposedWant: Want, callback: AsyncCallback\<vo
 **示例：**
 
 ```ts
+import appControl from '@ohos.bundle.appControl';
+import { BusinessError } from '@ohos.base';
+import Want from '@ohos.app.ability.Want';
+
 let appId = "com.example.myapplication_xxxxx";
-let want = {bundleName: 'com.example.myapplication'};
+let want: Want = {bundleName: 'com.example.myapplication'};
 
 try {
-    appControl.setDisposedStatus(appId, want, (error, data) => {
-        if (error) {
-            console.error('setDisposedStatus failed ' + error.message);
-            return;
-        }
-        console.info('setDisposedStatus success');
-    });
+  appControl.setDisposedStatus(appId, want, (error: BusinessError, data) => {
+    if (error) {
+      let message = (error as BusinessError).message;
+      console.error('setDisposedStatus failed ' + message);
+      return;
+    }
+    console.info('setDisposedStatus success');
+  });
 } catch (error) {
-    console.error('setDisposedStatus failed ' + error.message);
+    let message = (error as BusinessError).message;
+    console.error('setDisposedStatus failed ' + message);
 }
 ```
 
@@ -128,7 +140,7 @@ getDisposedStatus(appId: string): Promise\<Want>;
 
 | 参数名       | 类型     | 必填   | 说明                                    |
 | ----------- | ------ | ---- | --------------------------------------- |
-| appId  | string | 是    | 要查询的应用的appId<br> appId是应用的唯一标识，由应用Bundle名称和签名信息决定，获取方法参见[获取应用的appId](#获取应用的appid)。  |
+| appId  | string | 是    | 要查询的应用的appId。<br> appId是应用的唯一标识，由应用Bundle名称和签名信息决定，获取方法参见[获取应用的appId](#获取应用的appid)。  |
 
 **返回值：**
 
@@ -147,17 +159,22 @@ getDisposedStatus(appId: string): Promise\<Want>;
 **示例：**
 
 ```ts
+import appControl from '@ohos.bundle.appControl';
+import { BusinessError } from '@ohos.base';
+
 let appId = "com.example.myapplication_xxxxx";
 
 try {
-    appControl.getDisposedStatus(appId)
-        .then((data) => {
-            console.info('getDisposedStatus success. DisposedStatus: ' + JSON.stringify(data));
-        }).catch((error) => {
-            console.error('getDisposedStatus failed ' + error.message);
-        });
+  appControl.getDisposedStatus(appId)
+    .then((data) => {
+      console.info('getDisposedStatus success. DisposedStatus: ' + JSON.stringify(data));
+    }).catch((error: BusinessError) => {
+    let message = (error as BusinessError).message;
+    console.error('getDisposedStatus failed ' + message);
+  });
 } catch (error) {
-    console.error('getDisposedStatus failed ' + error.message);
+    let message = (error as BusinessError).message;
+    console.error('getDisposedStatus failed ' + message);
 }
 ```
 
@@ -177,7 +194,7 @@ getDisposedStatus(appId: string, callback: AsyncCallback\<Want>): void;
 
 | 参数名       | 类型     | 必填   | 说明                                  |
 | ----------- | ------ | ---- | --------------------------------------- |
-| appId  | string | 是    | 要查询的应用的appId<br> appId是应用的唯一标识，由应用Bundle名称和签名信息决定，获取方法参见[获取应用的appId](#获取应用的appid)。  |
+| appId  | string | 是    | 要查询的应用的appId。<br> appId是应用的唯一标识，由应用Bundle名称和签名信息决定，获取方法参见[获取应用的appId](#获取应用的appid)。  |
 | callback    | AsyncCallback\<Want> | 是    | 回调函数。当获取应用的处置状态成功时，err为null，data为获取到的处置状态；否则为错误对象。                    |
 
 **错误码：**
@@ -191,18 +208,23 @@ getDisposedStatus(appId: string, callback: AsyncCallback\<Want>): void;
 **示例：**
 
 ```ts
+import appControl from '@ohos.bundle.appControl';
+import { BusinessError } from '@ohos.base';
+
 let appId = "com.example.myapplication_xxxxx";
 
 try {
-    appControl.getDisposedStatus(appId, (error, data) => {
-        if (error) {
-            console.error('getDisposedStatus failed ' + error.message);
-            return;
-        }
-        console.info('getDisposedStatus success. DisposedStatus: ' + JSON.stringify(data));
-    });
+  appControl.getDisposedStatus(appId, (error, data) => {
+    if (error) {
+      let message = (error as BusinessError).message;
+      console.error('getDisposedStatus failed ' + message);
+      return;
+    }
+    console.info('getDisposedStatus success. DisposedStatus: ' + JSON.stringify(data));
+  });
 } catch (error) {
-    console.error('getDisposedStatus failed ' + error.message);
+    let message = (error as BusinessError).message;
+    console.error('getDisposedStatus failed ' + message);
 }
 ```
 
@@ -222,7 +244,7 @@ deleteDisposedStatus(appId: string): Promise\<void>
 
 | 参数名       | 类型     | 必填   | 说明                                    |
 | ----------- | ------ | ---- | --------------------------------------- |
-| appId  | string | 是    | 要删除处置状态的应用的appId<br> appId是应用的唯一标识，由应用Bundle名称和签名信息决定，获取方法参见[获取应用的appId](#获取应用的appid)。  |
+| appId  | string | 是    | 要删除处置状态的应用的appId。<br> appId是应用的唯一标识，由应用Bundle名称和签名信息决定，获取方法参见[获取应用的appId](#获取应用的appid)。  |
 
 **返回值：**
 
@@ -241,17 +263,22 @@ deleteDisposedStatus(appId: string): Promise\<void>
 **示例：**
 
 ```ts
+import appControl from '@ohos.bundle.appControl';
+import { BusinessError } from '@ohos.base';
+
 let appId = "com.example.myapplication_xxxxx";
 
 try {
-    appControl.deleteDisposedStatus(appId)
-        .then(() => {
-            console.info('deleteDisposedStatus success');
-        }).catch((error) => {
-            console.error('deleteDisposedStatus failed ' + error.message);
-        });
+  appControl.deleteDisposedStatus(appId)
+    .then(() => {
+      console.info('deleteDisposedStatus success');
+    }).catch((error: BusinessError) => {
+      let message = (error as BusinessError).message;
+      console.error('deleteDisposedStatus failed ' + message);
+  });
 } catch (error) {
-    console.error('deleteDisposedStatus failed ' + error.message);
+  let message = (error as BusinessError).message;
+  console.error('deleteDisposedStatus failed ' + message);
 }
 ```
 
@@ -284,21 +311,6 @@ deleteDisposedStatus(appId: string, callback: AsyncCallback\<void>) : void
 
 **示例：**
 
-```ts
-let appId = "com.example.myapplication_xxxxx";
-try {
-    appControl.deleteDisposedStatus(appId, (error, data) => {
-        if (error) {
-            console.error('deleteDisposedStatus failed ' + error.message);
-            return;
-        }
-        console.info('deleteDisposedStatus success');
-    });
-} catch (error) {
-    console.error('deleteDisposedStatus failed ' + error.message);
-}
-```
-
 ## 获取应用的appId
 
 appId是应用的唯一标识，由应用Bundle名称和签名信息决定，可以通过[getBundleInfo](js-apis-bundleManager.md#bundlemanagergetbundleinfo)接口获取。
@@ -307,18 +319,21 @@ appId是应用的唯一标识，由应用Bundle名称和签名信息决定，可
 
 ```ts
 import bundleManager from '@ohos.bundle.bundleManager';
+import { BusinessError } from '@ohos.base';
 
 let bundleName = 'com.example.myapplication';
 let appId: string;
 try {
-    bundleManager.getBundleInfo(bundleName, bundleManager.BundleFlag.GET_BUNDLE_INFO_WITH_SIGNATURE_INFO)
-        .then((data) => {
-            appId = data.signatureInfo.appId;
-            console.info("appId is " + appId);
-        }).catch((error) => {
-            console.error("getBundleInfo failed " + error.message);
-        });
+  bundleManager.getBundleInfo(bundleName, bundleManager.BundleFlag.GET_BUNDLE_INFO_WITH_SIGNATURE_INFO)
+    .then((data) => {
+      appId = data.signatureInfo.appId;
+      console.info("appId is " + appId);
+    }).catch((error: BusinessError) => {
+      let message = (error as BusinessError).message;
+      console.error("getBundleInfo failed " + message);
+  });
 } catch (error) {
-    console.error("getBundleInfo failed " + error.message);
+    let message = (error as BusinessError).message;
+    console.error("getBundleInfo failed " + message);
 }
 ```
\ No newline at end of file
diff --git a/zh-cn/application-dev/reference/apis/js-apis-bundle-BundleInstaller.md b/zh-cn/application-dev/reference/apis/js-apis-bundle-BundleInstaller.md
index 2e8a6df4f99515c552f3cd0ac6de5a5bd7f2a535..90892315abaea6d2e8b94773cfed97027c901087 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-bundle-BundleInstaller.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-bundle-BundleInstaller.md
@@ -34,24 +34,27 @@ SystemCapability.BundleManager.BundleFramework
 **示例：**
 
 ```ts
-import bundle from '@ohos.bundle';
-let hapFilePaths = ['/data/storage/el2/base/haps/entry/files/'];
-let installParam = {
-    userId: 100,
-    isKeepData: false,
-    installFlag: 1,
+import bundleInstall from '@ohos.bundle.installer';
+import { BusinessError } from '@ohos.base';
+
+let hapFilePaths: Array<string> = ['/data/storage/el2/base/haps/entry/files/'];
+let installParam: bundleInstall.InstallParam = {
+  userId: 100,
+  isKeepData: false,
+  installFlag: 1,
 };
 
-bundle.getBundleInstaller().then(installer => {
-    installer.install(hapFilePaths, installParam, err => {
-        if (err) {
-            console.error('install failed:' + JSON.stringify(err));
-        } else {
-            console.info('install successfully.');
-        }
-    });
-}).catch(error => {
-    console.error('getBundleInstaller failed. Cause: ' + error.message);
+bundleInstall.getBundleInstaller().then(installer => {
+  installer.install(hapFilePaths, installParam, err => {
+    if (err) {
+      console.error('install failed:' + JSON.stringify(err));
+    } else {
+      console.info('install successfully.');
+    }
+  });
+}).catch((error: BusinessError)=> {
+  let message = (error as BusinessError).message;
+  console.error('getBundleInstaller failed. Cause: ' + message);
 });
 ```
 
@@ -84,24 +87,27 @@ SystemCapability.BundleManager.BundleFramework
 **示例：**
 
 ```ts
-import bundle from '@ohos.bundle';
-let bundleName = 'com.example.myapplication';
-let installParam = {
-    userId: 100,
-    isKeepData: false,
-    installFlag: 1,
+import bundleInstall from '@ohos.bundle.installer';
+import { BusinessError } from '@ohos.base';
+
+let bundleName: string = 'com.example.myapplication';
+let installParam: bundleInstall.InstallParam = {
+  userId: 100,
+  isKeepData: false,
+  installFlag: 1,
 };
 
-bundle.getBundleInstaller().then(installer => {
-    installer.uninstall(bundleName, installParam, err => {
-        if (err) {
-            console.error('uninstall failed:' + JSON.stringify(err));
-        } else {
-            console.info('uninstall successfully.');
-        }
-    });
-}).catch(error => {
-    console.error('getBundleInstaller failed. Cause: ' + error.message);
+bundleInstall.getBundleInstaller().then(installer => {
+  installer.uninstall(bundleName, installParam, err => {
+    if (err) {
+      console.error('uninstall failed:' + JSON.stringify(err));
+    } else {
+      console.info('uninstall successfully.');
+    }
+  });
+}).catch((error: BusinessError) => {
+  let message = (error as BusinessError).message;
+  console.error('getBundleInstaller failed. Cause: ' + message);
 });
 ```
 ## BundleInstaller.recover<sup>(deprecated)<sup>
@@ -133,25 +139,27 @@ SystemCapability.BundleManager.BundleFramework
 **示例：**
 
 ```ts
-import bundle from '@ohos.bundle';
-
-let bundleName = 'com.example.myapplication';
-let installParam = {
-    userId: 100,
-    isKeepData: false,
-    installFlag: 1,
+import bundleInstall from '@ohos.bundle.installer';
+import { BusinessError } from '@ohos.base';
+
+let bundleName: string = 'com.example.myapplication';
+let installParam: bundleInstall.InstallParam = {
+  userId: 100,
+  isKeepData: false,
+  installFlag: 1,
 };
 
-bundle.getBundleInstaller().then(installer => {
-    installer.recover(bundleName, installParam, err => {
-        if (err) {
-            console.error('recover failed:' + JSON.stringify(err));
-        } else {
-            console.info('recover successfully.');
-        }
-    });
-}).catch(error => {
-    console.error('getBundleInstaller failed. Cause: ' + error.message);
+bundleInstall.getBundleInstaller().then(installer => {
+  installer.uninstall(bundleName, installParam, err => {
+    if (err) {
+      console.error('uninstall failed:' + JSON.stringify(err));
+    } else {
+      console.info('uninstall successfully.');
+    }
+  });
+}).catch((error: BusinessError) => {
+  let message = (error as BusinessError).message;
+  console.error('getBundleInstaller failed. Cause: ' + message);
 });
 ```
 
diff --git a/zh-cn/application-dev/reference/apis/js-apis-bundleMonitor.md b/zh-cn/application-dev/reference/apis/js-apis-bundleMonitor.md
index 24b5f769ff3be550e939f27a20ab7e3be04de1da..aa5bf9c6223e1b7571a7eb25dd7098148861aa21 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-bundleMonitor.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-bundleMonitor.md
@@ -68,13 +68,16 @@ on(type: BundleChangedEvent, callback: Callback\<BundleChangedInfo>): void;
 
 ```ts
 import bundleMonitor from '@ohos.bundle.bundleMonitor';
+import { BusinessError } from '@ohos.base';
 
 try {
     bundleMonitor.on('add', (bundleChangeInfo) => {
         console.info(`bundleName : ${bundleChangeInfo.bundleName} userId : ${bundleChangeInfo.userId}`);
 	})
 } catch (errData) {
-    console.log(`errData is errCode:${errData.errCode}  message:${errData.message}`);
+    let message = (errData as BusinessError).message;
+    let errCode = (errData as BusinessError).code;
+    console.log(`errData is errCode:${errCode}  message:${message}`);
 }
 ```
 
@@ -101,10 +104,13 @@ off(type: BundleChangedEvent, callback?: Callback\<BundleChangedInfo>): void;
 
 ```ts
 import bundleMonitor from '@ohos.bundle.bundleMonitor';
+import { BusinessError } from '@ohos.base';
 
 try {
     bundleMonitor.off('add');
 } catch (errData) {
-    console.log(`errData is errCode:${errData.errCode}  message:${errData.message}`);
+    let message = (errData as BusinessError).message;
+    let errCode = (errData as BusinessError).code;
+    console.log(`errData is errCode:${errCode}  message:${message}`);
 }
 ```
\ No newline at end of file
diff --git a/zh-cn/application-dev/reference/apis/js-apis-defaultAppManager.md b/zh-cn/application-dev/reference/apis/js-apis-defaultAppManager.md
index acd95567178272e55fd6ceca9c340d7ca5e0d036..87f4fd076a29abfecdff40b0306897348141c075 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-defaultAppManager.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-defaultAppManager.md
@@ -63,11 +63,13 @@ isDefaultApplication(type: string): Promise\<boolean>
 
 ```ts
 import defaultAppMgr from '@ohos.bundle.defaultAppManager';
+import { BusinessError } from '@ohos.base';
+
 defaultAppMgr.isDefaultApplication(defaultAppMgr.ApplicationType.BROWSER)
-.then((data) => {
+  .then((data) => {
     console.info('Operation successful. IsDefaultApplication ? ' + JSON.stringify(data));
-}).catch((error) => {
-    console.error('Operation failed. Cause: ' + JSON.stringify(error));
+  }).catch((error: BusinessError) => {
+  console.error('Operation failed. Cause: ' + JSON.stringify(error));
 });
 ```
 
@@ -90,13 +92,15 @@ isDefaultApplication(type: string, callback: AsyncCallback\<boolean>): void
 
 ```ts
 import defaultAppMgr from '@ohos.bundle.defaultAppManager';
-defaultAppMgr.isDefaultApplication(defaultAppMgr.ApplicationType.BROWSER, (err, data) => {
-    if (err) {
-        console.error('Operation failed. Cause: ' + JSON.stringify(err));
-        return;
-    }
-    console.info('Operation successful. IsDefaultApplication ? ' + JSON.stringify(data));
- });
+import { BusinessError } from '@ohos.base';
+
+defaultAppMgr.isDefaultApplication(defaultAppMgr.ApplicationType.BROWSER, (err: BusinessError, data) => {
+  if (err) {
+    console.error('Operation failed. Cause: ' + JSON.stringify(err));
+    return;
+  }
+  console.info('Operation successful. IsDefaultApplication ? ' + JSON.stringify(data));
+});
 ```
 
 ## defaultAppMgr.getDefaultApplication
@@ -138,21 +142,23 @@ getDefaultApplication(type: string, userId?: number): Promise\<BundleInfo>
 
 ```ts
 import defaultAppMgr from '@ohos.bundle.defaultAppManager';
+import { BusinessError } from '@ohos.base';
+
 defaultAppMgr.getDefaultApplication(defaultAppMgr.ApplicationType.BROWSER)
-.then((data) => {
+  .then((data) => {
     console.info('Operation successful. bundleInfo: ' + JSON.stringify(data));
-})
-.catch((error) => {
+  })
+  .catch((error: BusinessError) => {
     console.error('Operation failed. Cause: ' + JSON.stringify(error));
-});
+  });
 
 defaultAppMgr.getDefaultApplication("image/png")
-.then((data) => {
+  .then((data) => {
     console.info('Operation successful. bundleInfo: ' + JSON.stringify(data));
-})
-.catch((error) => {
+  })
+  .catch((error: BusinessError) => {
     console.error('Operation failed. Cause: ' + JSON.stringify(error));
-});
+  });
 ```
 
 ## defaultAppMgr.getDefaultApplication
@@ -189,21 +195,23 @@ getDefaultApplication(type: string, userId: number, callback: AsyncCallback\<Bun
 
 ```ts
 import defaultAppMgr from '@ohos.bundle.defaultAppManager';
+import { BusinessError } from '@ohos.base';
+
 let userId = 100;
-defaultAppMgr.getDefaultApplication(defaultAppMgr.ApplicationType.BROWSER, userId, (err, data) => {
-    if (err) {
-        console.error('Operation failed. Cause: ' + JSON.stringify(err));
-        return;
-    }
-    console.info('Operation successful. bundleInfo:' + JSON.stringify(data));
+defaultAppMgr.getDefaultApplication(defaultAppMgr.ApplicationType.BROWSER, userId, (err: BusinessError, data) => {
+  if (err) {
+    console.error('Operation failed. Cause: ' + JSON.stringify(err));
+    return;
+  }
+  console.info('Operation successful. bundleInfo:' + JSON.stringify(data));
 });
 
-defaultAppMgr.getDefaultApplication("image/png", userId, (err, data) => {
-    if (err) {
-        console.error('Operation failed. Cause: ' + JSON.stringify(err));
-        return;
-    }
-    console.info('Operation successful. bundleInfo:' + JSON.stringify(data));
+defaultAppMgr.getDefaultApplication("image/png", userId, (err: BusinessError, data) => {
+  if (err) {
+    console.error('Operation failed. Cause: ' + JSON.stringify(err));
+    return;
+  }
+  console.info('Operation successful. bundleInfo:' + JSON.stringify(data));
 });
 ```
 
@@ -239,19 +247,21 @@ getDefaultApplication(type: string, callback: AsyncCallback\<BundleInfo>) : void
 
 ```ts
 import defaultAppMgr from '@ohos.bundle.defaultAppManager';
-defaultAppMgr.getDefaultApplication(defaultAppMgr.ApplicationType.BROWSER, (err, data) => {
-    if (err) {
-        console.error('Operation failed. Cause: ' + JSON.stringify(err));
-        return;
-    }
-    console.info('Operation successful. bundleInfo:' + JSON.stringify(data));
+import { BusinessError } from '@ohos.base';
+
+defaultAppMgr.getDefaultApplication(defaultAppMgr.ApplicationType.BROWSER, (err: BusinessError, data) => {
+  if (err) {
+    console.error('Operation failed. Cause: ' + JSON.stringify(err));
+    return;
+  }
+  console.info('Operation successful. bundleInfo:' + JSON.stringify(data));
 });
-defaultAppMgr.getDefaultApplication("image/png", (err, data) => {
-    if (err) {
-        console.error('Operation failed. Cause: ' + JSON.stringify(err));
-        return;
-    }
-    console.info('Operation successful. bundleInfo:' + JSON.stringify(data));
+defaultAppMgr.getDefaultApplication("image/png", (err: BusinessError, data) => {
+  if (err) {
+    console.error('Operation failed. Cause: ' + JSON.stringify(err));
+    return;
+  }
+  console.info('Operation successful. bundleInfo:' + JSON.stringify(data));
 });
 ```
 
@@ -295,35 +305,30 @@ setDefaultApplication(type: string, elementName: ElementName, userId?: number):
 
 ```ts
 import defaultAppMgr from '@ohos.bundle.defaultAppManager';
-defaultAppMgr.setDefaultApplication(defaultAppMgr.ApplicationType.BROWSER, {
-    bundleName: "com.example.myapplication",
-    moduleName: "module01",
-    abilityName: "EntryAbility"
-}).then((data) => {
-    console.info('Operation successful.');
-}).catch((error) => {
-    console.error('Operation failed. Cause: ' + JSON.stringify(error));
+import { BusinessError } from '@ohos.base';
+
+let info = {
+  bundleName: "com.example.myapplication",
+  moduleName: "module01",
+  abilityName: "EntryAbility"
+}
+defaultAppMgr.setDefaultApplication(defaultAppMgr.ApplicationType.BROWSER, info).then((data) => {
+  console.info('Operation successful.');
+}).catch((error: BusinessError) => {
+  console.error('Operation failed. Cause: ' + JSON.stringify(error));
 });
 
 let userId = 100;
-defaultAppMgr.setDefaultApplication(defaultAppMgr.ApplicationType.BROWSER, {
-    bundleName: "com.example.myapplication",
-    moduleName: "module01",
-    abilityName: "EntryAbility"
-}, userId).then((data) => {
-    console.info('Operation successful.');
-}).catch((error) => {
-    console.error('Operation failed. Cause: ' + JSON.stringify(error));
+defaultAppMgr.setDefaultApplication(defaultAppMgr.ApplicationType.BROWSER, info, userId).then((data) => {
+  console.info('Operation successful.');
+}).catch((error: BusinessError) => {
+  console.error('Operation failed. Cause: ' + JSON.stringify(error));
 });
 
-defaultAppMgr.setDefaultApplication("image/png", {
-    bundleName: "com.example.myapplication",
-    moduleName: "module01",
-    abilityName: "EntryAbility"
-}, userId).then((data) => {
-    console.info('Operation successful.');
-}).catch((error) => {
-    console.error('Operation failed. Cause: ' + JSON.stringify(error));
+defaultAppMgr.setDefaultApplication("image/png", info, userId).then((data) => {
+  console.info('Operation successful.');
+}).catch((error: BusinessError) => {
+  console.error('Operation failed. Cause: ' + JSON.stringify(error));
 });
 ```
 
@@ -362,30 +367,29 @@ setDefaultApplication(type: string, elementName: ElementName, userId: number, ca
 
 ```ts
 import defaultAppMgr from '@ohos.bundle.defaultAppManager';
+import { BusinessError } from '@ohos.base';
+
 let userId = 100;
-defaultAppMgr.setDefaultApplication(defaultAppMgr.ApplicationType.BROWSER, {
-    bundleName: "com.example.myapplication",
-    moduleName: "module01",
-    abilityName: "EntryAbility"
-}, userId, (err, data) => {
-    if (err) {
-        console.error('Operation failed. Cause: ' + JSON.stringify(err));
-        return;
-    }
-    console.info('Operation successful.');
- });
-
-defaultAppMgr.setDefaultApplication("image/png", {
-    bundleName: "com.example.myapplication",
-    moduleName: "module01",
-    abilityName: "EntryAbility"
-}, userId, (err, data) => {
-    if (err) {
-        console.error('Operation failed. Cause: ' + JSON.stringify(err));
-        return;
-    }
-    console.info('Operation successful.');
- });
+let info = {
+  bundleName: "com.example.myapplication",
+  moduleName: "module01",
+  abilityName: "EntryAbility"
+}
+defaultAppMgr.setDefaultApplication(defaultAppMgr.ApplicationType.BROWSER, info, userId, (err: BusinessError, data) => {
+  if (err) {
+    console.error('Operation failed. Cause: ' + JSON.stringify(err));
+    return;
+  }
+  console.info('Operation successful.');
+});
+
+defaultAppMgr.setDefaultApplication("image/png", info, userId, (err: BusinessError, data) => {
+  if (err) {
+    console.error('Operation failed. Cause: ' + JSON.stringify(err));
+    return;
+  }
+  console.info('Operation successful.');
+});
 ```
 
 ## defaultAppMgr.setDefaultApplication
@@ -421,29 +425,28 @@ setDefaultApplication(type: string, elementName: ElementName, callback: AsyncCal
 
 ```ts
 import defaultAppMgr from '@ohos.bundle.defaultAppManager';
-defaultAppMgr.setDefaultApplication(defaultAppMgr.ApplicationType.BROWSER, {
-    bundleName: "com.example.myapplication",
-    moduleName: "module01",
-    abilityName: "EntryAbility"
-}, (err, data) => {
-    if (err) {
-        console.error('Operation failed. Cause: ' + JSON.stringify(err));
-        return;
-    }
-    console.info('Operation successful.');
- });
-
-defaultAppMgr.setDefaultApplication("image/png", {
-    bundleName: "com.example.myapplication",
-    moduleName: "module01",
-    abilityName: "EntryAbility"
-}, (err, data) => {
-    if (err) {
-        console.error('Operation failed. Cause: ' + JSON.stringify(err));
-        return;
-    }
-    console.info('Operation successful.');
- });
+import { BusinessError } from '@ohos.base';
+
+let info = {
+  bundleName: "com.example.myapplication",
+  moduleName: "module01",
+  abilityName: "EntryAbility"
+}
+defaultAppMgr.setDefaultApplication(defaultAppMgr.ApplicationType.BROWSER, info, (err: BusinessError, data) => {
+  if (err) {
+    console.error('Operation failed. Cause: ' + JSON.stringify(err));
+    return;
+  }
+  console.info('Operation successful.');
+});
+
+defaultAppMgr.setDefaultApplication("image/png", info, (err: BusinessError, data) => {
+  if (err) {
+    console.error('Operation failed. Cause: ' + JSON.stringify(err));
+    return;
+  }
+  console.info('Operation successful.');
+});
 ```
 
 ## defaultAppMgr.resetDefaultApplication
@@ -478,22 +481,24 @@ resetDefaultApplication(type: string, userId?: number): Promise\<void>
 
 ```ts
 import defaultAppMgr from '@ohos.bundle.defaultAppManager';
+import { BusinessError } from '@ohos.base';
+
 let userId = 100;
 defaultAppMgr.resetDefaultApplication(defaultAppMgr.ApplicationType.BROWSER, userId)
-.then((data) => {
+  .then((data) => {
     console.info('Operation successful.');
-})
-.catch((error) => {
+  })
+  .catch((error: BusinessError) => {
     console.error('Operation failed. Cause: ' + JSON.stringify(error));
-});
+  });
 
 defaultAppMgr.resetDefaultApplication("image/png", userId)
-.then((data) => {
+  .then((data) => {
     console.info('Operation successful.');
-})
-.catch((error) => {
+  })
+  .catch((error: BusinessError) => {
     console.error('Operation failed. Cause: ' + JSON.stringify(error));
-});
+  });
 ```
 
 ## defaultAppMgr.resetDefaultApplication
@@ -529,21 +534,23 @@ resetDefaultApplication(type: string, userId: number, callback: AsyncCallback\<v
 
 ```ts
 import defaultAppMgr from '@ohos.bundle.defaultAppManager';
+import { BusinessError } from '@ohos.base';
+
 let userId = 100;
-defaultAppMgr.resetDefaultApplication(defaultAppMgr.ApplicationType.BROWSER, userId, (err, data) => {
-    if (err) {
-        console.error('Operation failed. Cause: ' + JSON.stringify(err));
-        return;
-    }
-    console.info('Operation successful.');
+defaultAppMgr.resetDefaultApplication(defaultAppMgr.ApplicationType.BROWSER, userId, (err: BusinessError, data) => {
+  if (err) {
+    console.error('Operation failed. Cause: ' + JSON.stringify(err));
+    return;
+  }
+  console.info('Operation successful.');
 });
 
-defaultAppMgr.resetDefaultApplication("image/png", userId, (err, data) => {
-    if (err) {
-        console.error('Operation failed. Cause: ' + JSON.stringify(err));
-        return;
-    }
-    console.info('Operation successful.');
+defaultAppMgr.resetDefaultApplication("image/png", userId, (err: BusinessError, data) => {
+  if (err) {
+    console.error('Operation failed. Cause: ' + JSON.stringify(err));
+    return;
+  }
+  console.info('Operation successful.');
 });
 ```
 
@@ -578,19 +585,21 @@ resetDefaultApplication(type: string, callback: AsyncCallback\<void>) : void;
 
 ```ts
 import defaultAppMgr from '@ohos.bundle.defaultAppManager';
-defaultAppMgr.resetDefaultApplication(defaultAppMgr.ApplicationType.BROWSER, (err, data) => {
-    if (err) {
-        console.error('Operation failed. Cause: ' + JSON.stringify(err));
-        return;
-    }
-    console.info('Operation successful.');
+import { BusinessError } from '@ohos.base';
+
+defaultAppMgr.resetDefaultApplication(defaultAppMgr.ApplicationType.BROWSER, (err: BusinessError, data) => {
+  if (err) {
+    console.error('Operation failed. Cause: ' + JSON.stringify(err));
+    return;
+  }
+  console.info('Operation successful.');
 });
 
-defaultAppMgr.resetDefaultApplication("image/png", (err, data) => {
-    if (err) {
-        console.error('Operation failed. Cause: ' + JSON.stringify(err));
-        return;
-    }
-    console.info('Operation successful.');
+defaultAppMgr.resetDefaultApplication("image/png", (err: BusinessError, data) => {
+  if (err) {
+    console.error('Operation failed. Cause: ' + JSON.stringify(err));
+    return;
+  }
+  console.info('Operation successful.');
 });
 ```
\ No newline at end of file