diff --git a/api/@ohos.bundle.d.ts b/api/@ohos.bundle.d.ts
old mode 100644
new mode 100755
index 69de064da1604f247b88c3a99b17cc019b7112d4..6b4d6a7e9acfc49d7b2da845711d6a028821d86b
--- a/api/@ohos.bundle.d.ts
+++ b/api/@ohos.bundle.d.ts
@@ -17,6 +17,7 @@ import { AsyncCallback, Callback } from './basic';
 import { ApplicationInfo } from './bundle/applicationInfo';
 import { BundleInfo } from './bundle/bundleInfo';
 import { AbilityInfo } from './bundle/abilityInfo';
+import { ExtensionAbilityInfo } from './bundle/extensionAbilityInfo';
 import { Want } from './ability/want';
 import { BundleInstaller } from './bundle/bundleInstaller';
 import { ShortcutInfo } from './bundle/shortcutInfo';
@@ -49,27 +50,46 @@ declare namespace bundle {
     GET_BUNDLE_WITH_REQUESTED_PERMISSION = 0x00000010,
     GET_ALL_APPLICATION_INFO = 0xFFFF0000,
     /**
-      * @since 8
-      */
+     * @since 8
+     */
     GET_ABILITY_INFO_WITH_METADATA = 0x00000020,
     /**
-      * @since 8
-      */
-    GET_APPLICATION_INFO_WITH_METADATA = 0x00000040,
+     * @since 8
+     */
+     GET_BUNDLE_WITH_EXTENSION_ABILITY = 0x00000020,
     /**
-      * @since 8
-      */
+     * @since 8
+     */
+     GET_APPLICATION_INFO_WITH_METADATA = 0x00000040,
+    /**
+     * @since 8
+     */
     GET_ABILITY_INFO_SYSTEMAPP_ONLY = 0x00000080,
     /**
-      * @since 8
-      */
+     * @since 8
+     */
     GET_ABILITY_INFO_WITH_DISABLE = 0x00000100,
-     /**
-      * @since 8
-      */
+    /**
+     * @since 8
+     */
     GET_APPLICATION_INFO_WITH_DISABLE = 0x00000200,
   }
 
+  /**
+ * @name ExtensionFlag
+ * @since 8
+ * @SysCap SystemCapability.Appexecfwk
+ * @import NA
+ * @permission NA
+ * @devices phone, tablet, tv, wearable
+ */
+  enum ExtensionFlag {
+    GET_EXTENSION_INFO_DEFAULT = 0x00000000,
+    GET_EXTENSION_INFO_WITH_PERMISSION = 0x00000002,
+    GET_EXTENSION_INFO_WITH_APPLICATION = 0x00000004,
+    GET_EXTENSION_INFO_WITH_METADATA = 0x00000020,
+  }
+
 /**
  * @name ColorMode
  * @since 7
@@ -107,31 +127,31 @@ declare namespace bundle {
    */
   export enum AbilityType {
     /**
-      * @default Indicates an unknown ability type
-      * @since 7
-      * @SysCap SystemCapability.Appexecfwk
-      */
+     * @default Indicates an unknown ability type
+     * @since 7
+     * @SysCap SystemCapability.Appexecfwk
+     */
     UNKNOWN,
 
     /**
-      * @default Indicates that the ability has a UI
-      * @since 7
-      * @SysCap SystemCapability.Appexecfwk
-      */
+     * @default Indicates that the ability has a UI
+     * @since 7
+     * @SysCap SystemCapability.Appexecfwk
+     */
     PAGE,
 
     /**
-      * @default Indicates that the ability does not have a UI
-      * @since 7
-      * @SysCap SystemCapability.Appexecfwk
-      */
+     * @default Indicates that the ability does not have a UI
+     * @since 7
+     * @SysCap SystemCapability.Appexecfwk
+     */
     SERVICE,
 
     /**
-      * @default Indicates that the ability is used to provide data access services
-      * @since 7
-      * @SysCap SystemCapability.Appexecfwk
-      */
+     * @default Indicates that the ability is used to provide data access services
+     * @since 7
+     * @SysCap SystemCapability.Appexecfwk
+     */
     DATA,
   }
 
@@ -158,31 +178,31 @@ declare namespace bundle {
    */
   export enum DisplayOrientation {
     /**
-      * @default Indicates that the system automatically determines the display orientation
-      * @since 7
-      * @SysCap SystemCapability.Appexecfwk
-      */
+     * @default Indicates that the system automatically determines the display orientation
+     * @since 7
+     * @SysCap SystemCapability.Appexecfwk
+     */
     UNSPECIFIED,
 
     /**
-      * @default Indicates the landscape orientation
-      * @since 7
-      * @SysCap SystemCapability.Appexecfwk
-      */
+     * @default Indicates the landscape orientation
+     * @since 7
+     * @SysCap SystemCapability.Appexecfwk
+     */
     LANDSCAPE,
 
     /**
-      * @default Indicates the portrait orientation
-      * @since 7
-      * @SysCap SystemCapability.Appexecfwk
-      */
+     * @default Indicates the portrait orientation
+     * @since 7
+     * @SysCap SystemCapability.Appexecfwk
+     */
     PORTRAIT,
 
     /**
-      * @default Indicates the page ability orientation is the same as that of the nearest ability in the stack
-      * @since 7
-      * @SysCap SystemCapability.Appexecfwk
-      */
+     * @default Indicates the page ability orientation is the same as that of the nearest ability in the stack
+     * @since 7
+     * @SysCap SystemCapability.Appexecfwk
+     */
     FOLLOW_RECENT,
   }
 
@@ -196,20 +216,91 @@ declare namespace bundle {
    */
   export enum LaunchMode {
     /**
-      * @default Indicates that the ability has only one instance
-      * @since 7
-      * @SysCap SystemCapability.Appexecfwk
-      */
+     * @default Indicates that the ability has only one instance
+     * @since 7
+     * @SysCap SystemCapability.Appexecfwk
+     */
     SINGLETON = 0,
 
     /**
-      * @default Indicates that the ability can have multiple instances
-      * @since 7
-      * @SysCap SystemCapability.Appexecfwk
-      */
+     * @default Indicates that the ability can have multiple instances
+     * @since 7
+     * @SysCap SystemCapability.Appexecfwk
+     */
     STANDARD = 1,
   }
 
+  /**
+  * @name ExtensionAbilityType
+  * @since 8
+  * @SysCap SystemCapability.Appexecfwk
+  * @import NA
+  * @permission NA
+  * @devices phone, tablet, tv, wearable
+  */
+  export enum ExtensionAbilityType {
+    /**
+     * @default Indicates extension info with type of form
+     * @since 8
+     * @SysCap SystemCapability.Appexecfwk
+     */
+    FORM = 0,
+    /**
+     * @default Indicates extension info with type of work schedule
+     * @since 8
+     * @SysCap SystemCapability.Appexecfwk
+     */
+    WORK_SCHEDULER = 1,
+    /**
+     * @default Indicates extension info with type of input method
+     * @since 8
+     * @SysCap SystemCapability.Appexecfwk
+     */
+    INPUTMETHOD = 2,
+    /**
+     * @default Indicates extension info with type of service
+     * @since 8
+     * @SysCap SystemCapability.Appexecfwk
+    */
+    SERVICE = 3,
+    /**
+     * @default Indicates extension info with type of accessibility
+     * @since 8
+     * @SysCap SystemCapability.Appexecfwk
+     */
+    ACCESSIBILITY = 4,
+    /**
+     * @default Indicates extension info with type of datashare
+     * @since 8
+     * @SysCap SystemCapability.Appexecfwk
+     */
+    DATASHARE = 5,
+    /**
+     * @default Indicates extension info with type of fileshare
+     * @since 8
+     * @SysCap SystemCapability.Appexecfwk
+     */
+    FILESHARE = 6,
+    /**
+     * @default Indicates extension info with type of staticsubscriber
+     * @since 8
+     * @SysCap SystemCapability.Appexecfwk
+     */
+    STATICSUBSCRIBER = 7,
+    /**
+     * @default Indicates extension info with type of wallpaper
+     * @since 8
+     * @SysCap SystemCapability.Appexecfwk
+     */
+    WALLPAPER = 8,
+    /**
+     * @default Indicates extension info with type of unspecified
+     * @since 8
+     * @SysCap SystemCapability.Appexecfwk
+     */
+    UNSPECIFIED = 9,
+  }
+
   /**
    * @name BundleOptions
    * @since 7
@@ -220,20 +311,21 @@ declare namespace bundle {
    */
   export interface BundleOptions {
     /**
-      * @default Indicates the user id
-      * @since 7
-      * @SysCap SystemCapability.Appexecfwk
-      */
+     * @default Indicates the user id
+     * @since 7
+     * @SysCap SystemCapability.Appexecfwk
+     */
     userId?: number;
 
     /**
-      * @default Indicates the network id
-      * @since 7
-      * @SysCap SystemCapability.Appexecfwk
-      */
+     * @default Indicates the network id
+     * @since 7
+     * @SysCap SystemCapability.Appexecfwk
+     */
     networkId?: string;
   }
 
+
   /**
    * @name InstallErrorCode
    * @since 7
@@ -267,7 +359,12 @@ declare namespace bundle {
     /**
       * @since 7
       */
-    STATUS_BMS_SERVICE_ERROR = 0x41
+    STATUS_BMS_SERVICE_ERROR = 0x41,
+    /**
+      * @since 8
+      */
+    STATUS_FAILED_NO_SPACE_LEFT = 0x42
+
   }
 
   /**
@@ -305,7 +402,7 @@ declare namespace bundle {
    * @since 7
    * @SysCap SystemCapability.Appexecfwk
    * @param bundleName Indicates the application bundle name to be queried.
-   * @param flags Indicates the flag used to specify information contained in the ApplicationInfo object
+   * @param bundleFlags Indicates the flag used to specify information contained in the ApplicationInfo object
    *              that will be returned.
    * @param userId Indicates the user ID.
    * @return Returns the ApplicationInfo object.
@@ -333,9 +430,9 @@ declare namespace bundle {
    * @devices phone, tablet, tv, wearable
    * @since 7
    * @SysCap SystemCapability.Appexecfwk
-   * @param intent Indicates the Intent containing the application bundle name to
+   * @param want Indicates the Want containing the application bundle name to
    *               be queried.
-   * @param flags Indicates the flag used to specify information contained in the AbilityInfo objects that
+   * @param bundleFlags Indicates the flag used to specify information contained in the AbilityInfo objects that
    *              will be returned.
    * @param userId Indicates the user ID.
    * @return Returns a list of AbilityInfo objects.
@@ -367,7 +464,7 @@ declare namespace bundle {
    * @devices phone, tablet, tv, wearable
    * @since 7
    * @SysCap SystemCapability.Appexecfwk
-   * @param flags Indicates the flag used to specify information contained in the ApplicationInfo objects
+   * @param bundleFlags Indicates the flag used to specify information contained in the ApplicationInfo objects
    *              that will be returned.
    * @param userId Indicates the user ID.
    * @return Returns a list of ApplicationInfo objects.
@@ -384,7 +481,7 @@ declare namespace bundle {
    * @SysCap SystemCapability.Appexecfwk
    * @param hapFilePath Indicates the path storing the HAP. The path should be the relative path to the data
    *                    directory of the current application.
-   * @param flags Indicates the flag used to specify information contained in the BundleInfo object to be
+   * @param bundleFlags Indicates the flag used to specify information contained in the BundleInfo object to be
    *              returned.
    * @return Returns the BundleInfo object.
    */
@@ -394,16 +491,16 @@ declare namespace bundle {
   /**
 
   /**
-   * Obtains the Intent for starting the main ability of an application based on the
+   * Obtains the Want for starting the main ability of an application based on the
    * given bundle name. The main ability of an application is the ability that has the
-   * #ACTION_HOME and #ENTITY_HOME intent
+   * #ACTION_HOME and #ENTITY_HOME Want
    * filters set in the application's <b>config.json</b> file.
    *
    * @devices phone, tablet, tv, wearable
    * @since 7
    * @SysCap SystemCapability.Appexecfwk
    * @param bundleName Indicates the bundle name of the application.
-   * @return Returns the Intent for starting the application's main ability if any; returns null if
+   * @return Returns the Want for starting the application's main ability if any; returns null if
    *         the given bundle does not exist or does not contain any main ability.
    * @permission ohos.permission.GET_BUNDLE_INFO_PRIVILEGED
    */
@@ -479,6 +576,23 @@ declare namespace bundle {
    */
   function setAbilityEnabled(info: AbilityInfo, isEnable: boolean, callback: AsyncCallback<void>): void;
   function setAbilityEnabled(info: AbilityInfo, isEnable: boolean): Promise<void>;
+
+  /**
+   * Query extension info of by utilizing a Want.
+   *
+   * @devices phone, tablet, tv, wearable, car
+   * @since 8
+   * @SysCap SystemCapability.Appexecfwk
+   * @param want Indicates the Want containing the application bundle name to be queried.
+   * @param extensionFlags Indicates the flag used to specify information contained in the ExtensionInfo objects that
+   *              will be returned.
+   * @param userId Indicates the user ID.
+   * @return Returns a list of ExtensionInfo objects.
+   * @permission ohos.permission.GET_BUNDLE_INFO_PRIVILEGED, ohos.permission.GET_BUNDLE_INFO
+   */
+  function queryExtensionAbilityInfoByWant(want: Want, extensionFlags: number, userId: number, callback: AsyncCallback<Array<ExtensionAbilityInfo>>): void;
+  function queryExtensionAbilityInfoByWant(want: Want, extensionFlags: number, callback: AsyncCallback<Array<ExtensionAbilityInfo>>): void;
+  function queryExtensionAbilityInfoByWant(want: Want, extensionFlags: number, userId?: number): Promise<Array<ExtensionAbilityInfo>>;
 }
 
 export default bundle;
\ No newline at end of file
diff --git a/api/ability/want.d.ts b/api/ability/want.d.ts
index af2183ded2e6bd1db19f78012e18925d70a88482..6935e769631d863e6b09af14c439e1eee7ed7c36 100644
--- a/api/ability/want.d.ts
+++ b/api/ability/want.d.ts
@@ -102,4 +102,22 @@ export declare interface Want {
    * @default -
    */
   entities?: Array<string>;
+
+  /**
+   * The description of a extension ability name in a Want.
+   * @devices phone, tablet
+   * @since 8
+   * @sysCap AAFwk
+   * @default -
+   */
+  extensionAbilityName?: string;
+
+  /**
+   * The description of a extension ability type in a Want.
+   * @devices phone, tablet
+   * @since 8
+   * @sysCap AAFwk
+   * @default -
+   */
+  extensionAbilityType?: number;
 }
\ No newline at end of file
diff --git a/api/bundle/abilityInfo.d.ts b/api/bundle/abilityInfo.d.ts
index a7cf71866bcd08b934e02b1cf224f4d6624c853f..863800d2907cf274a84ff8aeb3ec8a099ea28f64 100644
--- a/api/bundle/abilityInfo.d.ts
+++ b/api/bundle/abilityInfo.d.ts
@@ -15,6 +15,7 @@
 
 import { ApplicationInfo } from './applicationInfo';
 import { CustomizeData } from './customizeData'
+import { Metadata } from './metadata'
 import bundle from './../@ohos.bundle';
 
 /**
@@ -248,4 +249,18 @@ export interface AbilityInfo {
     * @SysCap SystemCapability.Appexecfwk
     */
   readonly metaData: Array<CustomizeData>;
+
+  /**
+    * @default Indicates the metadata of ability
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly metadata: Array<Metadata>;
+
+  /**
+    * @default Indicates the metadata of ability
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+   readonly enabled: boolean;
 }
diff --git a/api/bundle/applicationInfo.d.ts b/api/bundle/applicationInfo.d.ts
index d57fbd7bc891e561202c1dbc797aa4d1e09fb394..49c2482bfabd24e22a0065449d6dfecea731d8b7 100644
--- a/api/bundle/applicationInfo.d.ts
+++ b/api/bundle/applicationInfo.d.ts
@@ -15,6 +15,7 @@
 
 import { ModuleInfo } from './moduleInfo';
 import { CustomizeData } from './customizeData'
+import { Metadata } from './metadata'
 
 /**
  * @name Obtains configuration information about an application
@@ -148,12 +149,40 @@ export interface ApplicationInfo {
     * @since 8
     * @SysCap SystemCapability.Appexecfwk
     */
-   readonly metaData: Map<string, Array<CustomizeData>>;
+  readonly metaData: Map<string, Array<CustomizeData>>;
+
+  /**
+    * @default Indicates the metadata of module
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly metadata: Array<Metadata>
 
   /**
     * @default Indicates whether or not this application may be removable
     * @since 8
     * @SysCap SystemCapability.Appexecfwk
     */
-   readonly removable: boolean;
+  readonly removable: boolean;
+
+  /**
+    * @default Indicates the access token of the application
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly accessTokenId: number;
+
+  /**
+    * @default Indicates the uid of the application
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly uid: number;
+
+  /**
+    * @default Indicates entity type of the application
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly entityType: string;
 }
\ No newline at end of file
diff --git a/api/bundle/bundleInfo.d.ts b/api/bundle/bundleInfo.d.ts
index 6353eaef993782219ad6861054cf73d4e256c9e2..09072dff6a2d2e6b60767f92f2b4a1ef4c08d08a 100644
--- a/api/bundle/bundleInfo.d.ts
+++ b/api/bundle/bundleInfo.d.ts
@@ -15,6 +15,7 @@
 
 import { AbilityInfo } from './abilityInfo';
 import { ApplicationInfo } from './applicationInfo';
+import { ExtensionAbilityInfo } from './extensionAbilityInfo';
 import { HapModuleInfo } from './hapModuleInfo';
 
 /**
@@ -234,4 +235,18 @@ export interface BundleInfo {
     * @SysCap SystemCapability.Appexecfwk
     */
   readonly entryInstallationFree: boolean;
+
+  /**
+    * @default Indicates whether free installation of the entry is supported
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly reqPermissionStates: Array<number>;
+
+  /**
+    * @default Obtains configuration information about an ability
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly extensionAbilityInfo: Array<ExtensionAbilityInfo>;
 }
diff --git a/api/bundle/extensionAbilityInfo.d.ts b/api/bundle/extensionAbilityInfo.d.ts
new file mode 100644
index 0000000000000000000000000000000000000000..57888bb5c5801834f3c049385dae13fab73db5d7
--- /dev/null
+++ b/api/bundle/extensionAbilityInfo.d.ts
@@ -0,0 +1,125 @@
+/*
+ * Copyright (c) 2021 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { ApplicationInfo } from './applicationInfo';
+import { Metadata } from './metadata'
+import bundle from './../@ohos.bundle';
+
+/**
+ * @name Obtains extension information about a bundle
+ * @since 8
+ * @SysCap SystemCapability.Appexecfwk
+ * @permission NA
+ * @devices phone, tablet, tv, wearable, car
+ */
+export interface ExtensionAbilityInfo {
+  /**
+    * @default Indicates the name of the bundle
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly bundleName: string;
+
+  /**
+    * @default Indicates the name of the module
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly moduleName: string;
+
+  /**
+    * @default Indicates the name of the extension info
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly name: string;
+
+  /**
+    * @default Indicates the label id of the entension info
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly labelId: number;
+
+  /**
+    * @default Indicates the description id of the entension info
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly descriptionId: number;
+
+  /**
+    * @default Indicates the icon id of the entension info
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly iconId: number;
+
+  /**
+    * @default Indicates whether the entensionInfo can be visible or not
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly isVisible: boolean;
+
+  /**
+    * @default Enumerates types of the entension info
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly extensionAbilityType: bundle.ExtensionAbilityType;
+
+  /**
+    * @default The permissions that others need to use this extension info
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly permissions: Array<string>;
+
+  /**
+    * @default Obtains configuration information about an application
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly applicationInfo: ApplicationInfo;
+
+  /**
+    * @default Indicates the metadata of bundle
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly metadata: Array<Metadata>;
+
+  /**
+    * @default Indicates the src language to express extension info
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly enabled: boolean;
+
+  /**
+    * @default Indicates the read permission extension ability info
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly readPermission: string;
+
+  /**
+    * @default Indicates the write permission of extension ability info
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly writePermission: string;
+}
diff --git a/api/bundle/hapModuleInfo.d.ts b/api/bundle/hapModuleInfo.d.ts
index a62a66955d341a076b9600c522bf4c14e2ae7be9..067bc267565489d14a9416fcc2c90ec5df94d19a 100644
--- a/api/bundle/hapModuleInfo.d.ts
+++ b/api/bundle/hapModuleInfo.d.ts
@@ -14,6 +14,7 @@
  */
 
 import { AbilityInfo } from "./abilityInfo";
+import { ExtensionAbilityInfo } from "./extensionAbilityInfo";
 
 /**
  * @name Obtains configuration information about an module.
@@ -113,4 +114,18 @@ export interface HapModuleInfo {
     * @SysCap SystemCapability.Appexecfwk
     */
   readonly installationFree: boolean;
+
+  /**
+    * @default Indicates main elementName of the module
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly mainElementName: string;
+
+  /**
+    * @default Obtains configuration information about extension ability
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+  readonly extensionAbilityInfo: Array<ExtensionAbilityInfo>;
 }
\ No newline at end of file
diff --git a/api/bundle/metadata.d.ts b/api/bundle/metadata.d.ts
new file mode 100644
index 0000000000000000000000000000000000000000..43f3dba9ea744431b316ab16dabe74de668e38d1
--- /dev/null
+++ b/api/bundle/metadata.d.ts
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2021 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+ /**
+ * @name Indicates the Metadata
+ * @since 8
+ * @SysCap SystemCapability.Appexecfwk
+ * @permission NA
+ * @devices phone, tablet, tv, wearable, car
+ */
+  export interface Metadata {
+    /**
+      * @default Indicates the metadata name
+      * @since 8
+      * @SysCap SystemCapability.Appexecfwk
+      */
+    name: string;
+
+    /**
+      * @default Indicates the metadata value
+      * @since 8
+      * @SysCap SystemCapability.Appexecfwk
+      */
+    value: string;
+
+    /**
+    * @default Indicates the metadata resource
+    * @since 8
+    * @SysCap SystemCapability.Appexecfwk
+    */
+    resource: string;
+  }
\ No newline at end of file