diff --git a/interfaces/inner_api/app_manager/include/appmgr/kia_interceptor_interface.h b/interfaces/inner_api/app_manager/include/appmgr/kia_interceptor_interface.h
index 9e8fb7252c..52dc49e2bb 100644
--- a/interfaces/inner_api/app_manager/include/appmgr/kia_interceptor_interface.h
+++ b/interfaces/inner_api/app_manager/include/appmgr/kia_interceptor_interface.h
@@ -22,12 +22,24 @@
 
 namespace OHOS {
 namespace AppExecFwk {
+/**
+ * @class IKiaInterceptor
+ * IPC interface for KIA.
+ */
 class IKiaInterceptor : public OHOS::IRemoteBroker {
 public:
     DECLARE_INTERFACE_DESCRIPTOR(u"ohos.appexecfwk.IKiaInterceptor");
+
+    /**
+     * OnIntercept, processing method from KIA.
+     *
+     * @param want The param of openning the app.
+     * @return Error code of calling the function.
+     */
     virtual int OnIntercept(AAFwk::Want &want) = 0;
 
     enum {
+        // ipc code for calling OnIntercept
         KIA_INTERCEPTOR_ON_INTERCEPT = 0,
     };
 };
diff --git a/interfaces/inner_api/app_manager/include/appmgr/kia_interceptor_proxy.h b/interfaces/inner_api/app_manager/include/appmgr/kia_interceptor_proxy.h
index ca579bc05c..328ac436be 100644
--- a/interfaces/inner_api/app_manager/include/appmgr/kia_interceptor_proxy.h
+++ b/interfaces/inner_api/app_manager/include/appmgr/kia_interceptor_proxy.h
@@ -22,18 +22,43 @@
 
 namespace OHOS {
 namespace AppExecFwk {
+/**
+ * @class KiaInterceptorProxy
+ * IPC proxy of IKiaInterceptor.
+ */
 class KiaInterceptorProxy : public IRemoteProxy<IKiaInterceptor> {
 public:
+    /**
+     * KiaInterceptorProxy, constructor.
+     *
+     * @param impl The implementation of IKiaInterceptor.
+     */
     explicit KiaInterceptorProxy(const sptr<IRemoteObject> &impl) : IRemoteProxy<IKiaInterceptor>(impl)
     {}
 
+    /**
+     * KiaInterceptorProxy, destructor.
+     *
+     */
     virtual ~KiaInterceptorProxy()
     {}
 
+    /**
+     * OnIntercept, processing method from KIA.
+     *
+     * @param want The param of openning the app.
+     */
     virtual int OnIntercept(AAFwk::Want &want) override;
 
 private:
+    /**
+     * WriteInterfaceToken.
+     *
+     * @param data The message parcel data.
+     * @return Flag whether write is successful.
+     */
     bool WriteInterfaceToken(MessageParcel &data);
+
     static inline BrokerDelegator<KiaInterceptorProxy> delegator_;
 };
 }  // namespace AppExecFwk
diff --git a/interfaces/inner_api/app_manager/include/appmgr/kia_interceptor_stub.h b/interfaces/inner_api/app_manager/include/appmgr/kia_interceptor_stub.h
index 682f511cab..784a3d80eb 100644
--- a/interfaces/inner_api/app_manager/include/appmgr/kia_interceptor_stub.h
+++ b/interfaces/inner_api/app_manager/include/appmgr/kia_interceptor_stub.h
@@ -23,15 +23,44 @@
 
 namespace OHOS {
 namespace AppExecFwk {
+/**
+ * @class KiaInterceptorStub
+ * IPC stub of IKiaInterceptor.
+ */
 class KiaInterceptorStub : public IRemoteStub<IKiaInterceptor> {
 public:
+    /**
+     * KiaInterceptorStub, constructor.
+     *
+     */
     KiaInterceptorStub();
+
+    /**
+     * KiaInterceptorStub, destructor.
+     *
+     */
     virtual ~KiaInterceptorStub();
 
+    /**
+     * OnRemoteRequest, IPC method.
+     *
+     * @param code The IPC code.
+     * @param data The message parcel data.
+     * @param reply The message parcel reply.
+     * @param option The message parcel option.
+     * @return Error code of calling the function.
+     */
     virtual int OnRemoteRequest(
         uint32_t code, MessageParcel &data, MessageParcel &reply, MessageOption &option) override;
 
 private:
+    /**
+     * OnInterceptInner, inner processing method from KIA.
+     *
+     * @param data The message parcel data.
+     * @param reply The message parcel reply.
+     * @return Error code of calling the function.
+     */
     int OnInterceptInner(MessageParcel &data, MessageParcel &reply);
 };
 }  // namespace AppExecFwk
diff --git a/interfaces/kits/native/ability/native/free_install_observer_proxy.h b/interfaces/kits/native/ability/native/free_install_observer_proxy.h
index 3475866f6c..708fbea677 100644
--- a/interfaces/kits/native/ability/native/free_install_observer_proxy.h
+++ b/interfaces/kits/native/ability/native/free_install_observer_proxy.h
@@ -21,9 +21,22 @@
 
 namespace OHOS {
 namespace AbilityRuntime {
+/**
+ * @class FreeInstallObserverProxy
+ * IPC stub of IFreeInstallObserver.
+ */
 class FreeInstallObserverProxy : public IRemoteProxy<IFreeInstallObserver> {
 public:
+    /**
+     * FreeInstallObserverProxy, constructor.
+     *
+     */
     explicit FreeInstallObserverProxy(const sptr<IRemoteObject> &impl);
+
+    /**
+     * FreeInstallObserverProxy, destructor.
+     *
+     */
     virtual ~FreeInstallObserverProxy() = default;
 
     /**
@@ -48,7 +61,14 @@ public:
         const int &resultCode) override;
 
 private:
+    /**
+     * WriteInterfaceToken.
+     *
+     * @param data The message parcel data.
+     * @return Flag whether write is successful.
+     */
     bool WriteInterfaceToken(MessageParcel &data);
+
     static inline BrokerDelegator<FreeInstallObserverProxy> delegator_;
 };
 } // namespace AbilityRuntime
diff --git a/interfaces/kits/native/ability/native/free_install_observer_stub.h b/interfaces/kits/native/ability/native/free_install_observer_stub.h
index b23c34bf1f..fefa78a0d7 100644
--- a/interfaces/kits/native/ability/native/free_install_observer_stub.h
+++ b/interfaces/kits/native/ability/native/free_install_observer_stub.h
@@ -24,17 +24,55 @@
 
 namespace OHOS {
 namespace AbilityRuntime {
+/**
+ * @class FreeInstallObserverStub
+ * IPC proxy of IFreeInstallObserver.
+ */
 class FreeInstallObserverStub : public IRemoteStub<IFreeInstallObserver> {
 public:
+    /**
+     * FreeInstallObserverStub, constructor.
+     *
+     */
     FreeInstallObserverStub();
+
+    /**
+     * FreeInstallObserverStub, destructor.
+     *
+     */
     virtual ~FreeInstallObserverStub();
 
+    /**
+     * OnRemoteRequest, IPC method.
+     *
+     * @param code The IPC code.
+     * @param data The message parcel data.
+     * @param reply The message parcel reply.
+     * @param option The message parcel option.
+     * @return Error code of calling the function.
+     */
     virtual int OnRemoteRequest(
         uint32_t code, MessageParcel &data, MessageParcel &reply, MessageOption &option) override;
 
 private:
     DISALLOW_COPY_AND_MOVE(FreeInstallObserverStub);
+
+    /**
+     * OnInstallFinishedInner, inner processing method for OnInstallFinished.
+     *
+     * @param data The message parcel data.
+     * @param reply The message parcel reply.
+     * @return Error code of calling the function.
+     */
     int OnInstallFinishedInner(MessageParcel &data, MessageParcel &reply);
+
+    /**
+     * OnInstallFinishedByUrlInner, inner processing method for OnInstallFinishedByUrl.
+     *
+     * @param data The message parcel data.
+     * @param reply The message parcel reply.
+     * @return Error code of calling the function.
+     */
     int OnInstallFinishedByUrlInner(MessageParcel &data, MessageParcel &reply);
 };
 } // namespace AbilityRuntime
diff --git a/interfaces/kits/native/ability/native/js_free_install_observer.h b/interfaces/kits/native/ability/native/js_free_install_observer.h
index 5e417cf055..6f0fc6b9df 100644
--- a/interfaces/kits/native/ability/native/js_free_install_observer.h
+++ b/interfaces/kits/native/ability/native/js_free_install_observer.h
@@ -38,7 +38,16 @@ struct JsFreeInstallObserverObject {
 
 class JsFreeInstallObserver : public FreeInstallObserverStub {
 public:
+    /**
+     * JsFreeInstallObserver, constructor.
+     *
+     */
     explicit JsFreeInstallObserver(napi_env env);
+
+    /**
+     * JsFreeInstallObserver, destructor.
+     *
+     */
     ~JsFreeInstallObserver();
 
     /**
@@ -97,14 +106,67 @@ public:
         napi_value jsObserverObject, napi_value* result, bool isAbilityResult = false);
 
 private:
+    /**
+     * CallPromise, resolve promise.
+     *
+     * @param deferred The promise that is to be resolved.
+     * @param resultCode The result code of the promise.
+     */
     void CallPromise(napi_deferred deferred, int32_t resultCode);
+
+    /**
+     * CallPromise, resolve promise.
+     *
+     * @param deferred The promise that is to be resolved.
+     * @param abilityResult The ability result of the promise.
+     */
     void CallPromise(napi_deferred deferred, napi_value abilityResult);
+
+    /**
+     * CallCallback, call callback.
+     *
+     * @param callback The callback that is to be called.
+     * @param resultCode The result code of the promise.
+     */
     void CallCallback(napi_ref callback, int32_t resultCode);
+
+    /**
+     * CallCallback, call callback.
+     *
+     * @param callback The callback that is to be called.
+     * @param abilityResult The ability result of the promise.
+     */
     void CallCallback(napi_ref callback, napi_value abilityResult);
+
+    /**
+     * HandleOnInstallFinished, handle the event of free install upon finished.
+     *
+     * @param bundleName The bundle name of the app.
+     * @param abilityName The ability name of the app.
+     * @param startTime The start time.
+     * @param resultCode The result code.
+     */
     void HandleOnInstallFinished(const std::string &bundleName, const std::string &abilityName,
         const std::string &startTime, const int &resultCode);
+
+    /**
+     * HandleOnInstallFinishedByUrl, handle the event of free install upon finished.
+     *
+     * @param startTime The start time.
+     * @param url The url of the app.
+     * @param resultCode The result code.
+     */
     void HandleOnInstallFinishedByUrl(const std::string &startTime, const std::string &url,
         const int &resultCode);
+
+    /**
+     * AddJsObserverCommon, helper of AddJsObserverObject.
+     *
+     * @param object The free install observer object.
+     * @param jsObserverObject The js observer object.
+     * @param result The resultant object.
+     * @param isAbilityResult The flag of whether it is to return ability result.
+     */
     void AddJsObserverCommon(JsFreeInstallObserverObject &object,
         napi_value jsObserverObject, napi_value* result, bool isAbilityResult);
     napi_env env_;
diff --git a/services/abilitymgr/include/utils/ability_permission_util.h b/services/abilitymgr/include/utils/ability_permission_util.h
index 0fe8cbc91d..d41eaeaea4 100644
--- a/services/abilitymgr/include/utils/ability_permission_util.h
+++ b/services/abilitymgr/include/utils/ability_permission_util.h
@@ -27,29 +27,99 @@ struct RunningProcessInfo;
 }
 namespace AAFwk {
 struct AbilityRequest;
+
+/**
+ * @class Want
+ * the struct to open abilities.
+ */
 class Want;
+
+/**
+ * @class AbilityPermissionUtil
+ * provides ability permission utilities.
+ */
 class AbilityPermissionUtil {
 public:
+    /**
+     * GetInstance, get an instance of AbilityPermissionUtil.
+     *
+     * @return An instance of AbilityPermissionUtil.
+     */
     static AbilityPermissionUtil &GetInstance();
 
-    // check caller is delegator
+    /**
+     * IsDelegatorCall, check caller is delegator.
+     *
+     * @param processInfo The process information.
+     * @param abilityRequest The ability request.
+     * @return Whether the caller is delegator.
+     */
     bool IsDelegatorCall(const AppExecFwk::RunningProcessInfo &processInfo, const AbilityRequest &abilityRequest) const;
 
-    // check dominate screen
+    /**
+     * IsDominateScreen, check dominate screen.
+     *
+     * @param want The want.
+     * @param isPendingWantCaller Flag of whether it is the pending want caller.
+     * @return Whether it is dominate screen.
+     */
     bool IsDominateScreen(const Want &want, bool isPendingWantCaller);
 
+    /**
+     * CheckMultiInstanceAndAppClone, check if the app is either multi-instance or app-clone.
+     *
+     * @param want The want.
+     * @param userId The user id.
+     * @param appIndex The app index.
+     * @param callerToken The caller token.
+     * @return Whether the app is either multi-instance or app-clone.
+     */
     int32_t CheckMultiInstanceAndAppClone(Want &want, int32_t userId, int32_t appIndex,
         sptr<IRemoteObject> callerToken);
 
+    /**
+     * CheckMultiInstanceKeyForExtension, check multi-instance key for extension.
+     *
+     * @param abilityRequest The ability request.
+     * @return Whether the key is multi-instance key.
+     */
     int32_t CheckMultiInstanceKeyForExtension(const AbilityRequest &abilityRequest);
 
 private:
+    /**
+     * AbilityPermissionUtil, the private constructor.
+     *
+     */
     AbilityPermissionUtil() = default;
+
+    /**
+     * AbilityPermissionUtil, the private destructor.
+     *
+     */
     ~AbilityPermissionUtil() = default;
 
+    /**
+     * CheckMultiInstance, check multi-instance.
+     *
+     * @param want The want.
+     * @param callerToken The caller token.
+     * @param isCreating Whether the app is being created.
+     * @param instanceKey The instance key.
+     * @param maxCount The max number of instances.
+     * @return Whether it is a valid multi-instance instance.
+     */
     int32_t CheckMultiInstance(Want &want, sptr<IRemoteObject> callerToken, bool isCreating,
         const std::string &instanceKey, int32_t maxCount);
 
+    /**
+     * UpdateInstanceKey, update instance key.
+     *
+     * @param want The want.
+     * @param originInstanceKey The original instance key.
+     * @param instanceKeyArray Candidate instance keys.
+     * @param instanceKey The new instance key.
+     * @return Whether the update is successful.
+     */
     int32_t UpdateInstanceKey(Want &want, const std::string &originInstanceKey,
         const std::vector<std::string> &instanceKeyArray, const std::string &instanceKey);
 
diff --git a/services/abilitymgr/include/utils/app_mgr_util.h b/services/abilitymgr/include/utils/app_mgr_util.h
index 43b42bbad8..3384d4b42d 100644
--- a/services/abilitymgr/include/utils/app_mgr_util.h
+++ b/services/abilitymgr/include/utils/app_mgr_util.h
@@ -20,8 +20,17 @@
 
 namespace OHOS {
 namespace AAFwk {
+/**
+ * @class AppMgrUtil
+ * provides appmgr utilities.
+ */
 class AppMgrUtil final {
 public:
+    /**
+     * GetAppMgr, get app mgr.
+     *
+     * @return AppMgr.
+     */
     static sptr<OHOS::AppExecFwk::IAppMgr> GetAppMgr();
 
 private:
diff --git a/services/abilitymgr/include/utils/dump_utils.h b/services/abilitymgr/include/utils/dump_utils.h
index 73a265e26a..7d9acab05e 100644
--- a/services/abilitymgr/include/utils/dump_utils.h
+++ b/services/abilitymgr/include/utils/dump_utils.h
@@ -20,36 +20,103 @@
 
 namespace OHOS {
 namespace AAFwk {
+/**
+ * @class DumpUtils
+ * provides dump utilities.
+ */
 class DumpUtils final {
 public:
     enum DumpKey {
+        // dump all
         KEY_DUMP_ALL = 0,
+
+        // dump stack list
         KEY_DUMP_STACK_LIST,
+
+        // dump stack
         KEY_DUMP_STACK,
+
+        // dump mission
         KEY_DUMP_MISSION,
+
+        // dump top ability
         KEY_DUMP_TOP_ABILITY,
+
+        // dump wait queue
         KEY_DUMP_WAIT_QUEUE,
+
+        // dump service
         KEY_DUMP_SERVICE,
+
+        // dump data
         KEY_DUMP_DATA,
+
+        // dump focus ability
         KEY_DUMP_FOCUS_ABILITY,
+
+        // dump window mode
         KEY_DUMP_WINDOW_MODE,
+
+        // dump mission list
         KEY_DUMP_MISSION_LIST,
+
+        // dump mission info
         KEY_DUMP_MISSION_INFOS,
     };
 
     enum DumpsysKey {
+        // dump system all
         KEY_DUMP_SYS_ALL = 0,
+
+        // dump system mission list
         KEY_DUMP_SYS_MISSION_LIST,
+
+        // dump system ability
         KEY_DUMP_SYS_ABILITY,
+
+        // dump system service
         KEY_DUMP_SYS_SERVICE,
+
+        // dump system pending
         KEY_DUMP_SYS_PENDING,
+
+        // dump system process
         KEY_DUMP_SYS_PROCESS,
+
+        // dump system data
         KEY_DUMP_SYS_DATA,
     };
 
+    /**
+     * DumpMapOne, dump map first function.
+     *
+     * @param argString The argument string.
+     * @return The pair of the dump result and the dump key.
+     */
     static std::pair<bool, DumpUtils::DumpKey> DumpMapOne(std::string argString);
+
+    /**
+     * DumpMapTwo, dump map second function.
+     *
+     * @param argString The argument string.
+     * @return The pair of the dump result and the dump key.
+     */
     static std::pair<bool, DumpUtils::DumpKey> DumpMapTwo(std::string argString);
+
+    /**
+     * DumpMap, dump map function.
+     *
+     * @param argString The argument string.
+     * @return The pair of the dump result and the dump key.
+     */
     static std::pair<bool, DumpUtils::DumpKey> DumpMap(std::string argString);
+
+    /**
+     * DumpsysMap, dump system map function.
+     *
+     * @param argString The argument string.
+     * @return The pair of the dump result and the dump key.
+     */
     static std::pair<bool, DumpUtils::DumpsysKey> DumpsysMap(std::string argString);
 };
 }  // namespace AAFwk
diff --git a/services/abilitymgr/include/utils/extension_permissions_util.h b/services/abilitymgr/include/utils/extension_permissions_util.h
index 750814642b..b8bc1fb7dc 100644
--- a/services/abilitymgr/include/utils/extension_permissions_util.h
+++ b/services/abilitymgr/include/utils/extension_permissions_util.h
@@ -20,9 +20,26 @@
 
 namespace OHOS {
 namespace AAFwk {
+/**
+ * @class ExtensionPermissionsUtil
+ * provides extension permission utilities.
+ */
 class ExtensionPermissionsUtil final {
 public:
+    /**
+     * CheckSAPermission, check if it has SA permissions.
+     *
+     * @param extensionType The extension type.
+     * @return Whether it has SA permissions.
+     */
     static bool CheckSAPermission(const AppExecFwk::ExtensionAbilityType &extensionType);
+
+    /**
+     * CheckSAPermissionMore, check if it has SA permissions or more.
+     *
+     * @param extensionType The extension type.
+     * @return Whether it has SA permissions or more.
+     */
     static bool CheckSAPermissionMore(const AppExecFwk::ExtensionAbilityType &extensionType);
 };
 
diff --git a/services/abilitymgr/include/utils/modal_system_dialog_util.h b/services/abilitymgr/include/utils/modal_system_dialog_util.h
index 52cdc93ef5..2105c484dc 100644
--- a/services/abilitymgr/include/utils/modal_system_dialog_util.h
+++ b/services/abilitymgr/include/utils/modal_system_dialog_util.h
@@ -20,6 +20,10 @@
 
 namespace OHOS {
 namespace AbilityRuntime {
+/**
+ * @class ModalSystemDialogUtil
+ * provides modal system dialog utilities.
+ */
 class ModalSystemDialogUtil final {
 public:
     /**
diff --git a/services/abilitymgr/include/utils/multi_app_utils.h b/services/abilitymgr/include/utils/multi_app_utils.h
index cca870e799..2bb6ea0e82 100644
--- a/services/abilitymgr/include/utils/multi_app_utils.h
+++ b/services/abilitymgr/include/utils/multi_app_utils.h
@@ -20,8 +20,19 @@
 
 namespace OHOS {
 namespace AAFwk {
+/**
+ * @class MultiAppUtils
+ * provides multi-app utilities.
+ */
 class MultiAppUtils {
 public:
+    /**
+     * GetRunningMultiAppIndex, get multi-app running application index.
+     *
+     * @param bundleName The bundle name of the app.
+     * @param uid The calling uid.
+     * @param appIndex The resultant application index.
+     */
     static void GetRunningMultiAppIndex(const std::string &bundleName, int32_t uid, int32_t &appIndex);
 };
 }  // namespace AAFwk
diff --git a/services/abilitymgr/include/utils/multi_instance_utils.h b/services/abilitymgr/include/utils/multi_instance_utils.h
index 4f75e0758b..e253671ce7 100644
--- a/services/abilitymgr/include/utils/multi_instance_utils.h
+++ b/services/abilitymgr/include/utils/multi_instance_utils.h
@@ -25,14 +25,67 @@
 
 namespace OHOS {
 namespace AAFwk {
+/**
+ * @class MultiInstanceUtils
+ * provides multi-instance utilities.
+ */
 class MultiInstanceUtils {
 public:
+    /**
+     * GetInstanceKey, get instance key of the given want.
+     *
+     * @param want The want param.
+     * @return The instance key.
+     */
     static std::string GetInstanceKey(const Want& want);
+
+    /**
+     * GetValidExtensionInstanceKey, get valid extension instance key.
+     *
+     * @param abilityRequest The ability request.
+     * @return The instance key.
+     */
     static std::string GetValidExtensionInstanceKey(const AbilityRequest &abilityRequest);
+
+    /**
+     * GetValidExtensionInstanceKey, get valid extension instance key.
+     *
+     * @param abilityRequest The ability request.
+     * @return The instance key.
+     */
     static std::string GetSelfCallerInstanceKey(const AbilityRequest &abilityRequest);
+
+    /**
+     * IsDefaultInstanceKey, check if the key is the default instance key.
+     *
+     * @param key The key to be queried.
+     * @return Whether the instance key is the default.
+     */
     static bool IsDefaultInstanceKey(const std::string& key);
+
+    /**
+     * IsMultiInstanceApp, check if the app is the default multi-instance app.
+     *
+     * @param appInfo The app info to be queried.
+     * @return Whether the app is the default multi-instance app.
+     */
     static bool IsMultiInstanceApp(AppExecFwk::ApplicationInfo appInfo);
+
+    /**
+     * IsSupportedExtensionType, check if the type supports extension type.
+     *
+     * @param type The extension ability type.
+     * @return Whether the type supports extension type.
+     */
     static bool IsSupportedExtensionType(AppExecFwk::ExtensionAbilityType type);
+
+    /**
+     * IsInstanceKeyExist, check if the instance key exists.
+     *
+     * @param bundleName The bundle name.
+     * @param key The instance key to be queried.
+     * @return Whether the instance key exists.
+     */
     static bool IsInstanceKeyExist(const std::string& bundleName, const std::string& key);
 };
 }  // namespace AAFwk
diff --git a/services/abilitymgr/include/utils/state_utils.h b/services/abilitymgr/include/utils/state_utils.h
index 423022c070..d4ab40b021 100644
--- a/services/abilitymgr/include/utils/state_utils.h
+++ b/services/abilitymgr/include/utils/state_utils.h
@@ -23,10 +23,34 @@
 
 namespace OHOS {
 namespace AAFwk {
+/**
+ * @class StateUtils
+ * provides state utilities.
+ */
 class StateUtils final {
 public:
+    /**
+     * StateToStrMap, convert ability state to string.
+     *
+     * @param state The ability state.
+     * @return The string ability state.
+     */
     static std::string StateToStrMap(const AbilityState &state);
+
+    /**
+     * AppStateToStrMap, convert app state to string.
+     *
+     * @param state The app state.
+     * @return The string app state.
+     */
     static std::string AppStateToStrMap(const AppState &state);
+
+    /**
+     * ConvertStateMap, convert ability lifecycle state to string.
+     *
+     * @param state The ability lifecycle state.
+     * @return The string ability lifecycle state.
+     */
     static int ConvertStateMap(const AbilityLifeCycleState &state);
 };
 }  // namespace AAFwk
diff --git a/services/abilitymgr/include/utils/want_utils.h b/services/abilitymgr/include/utils/want_utils.h
index ee60cd1d2d..2904422f29 100644
--- a/services/abilitymgr/include/utils/want_utils.h
+++ b/services/abilitymgr/include/utils/want_utils.h
@@ -25,10 +25,34 @@
 
 namespace OHOS {
 namespace AAFwk {
+/**
+ * @class WantUtils
+ * provides want utilities.
+ */
 class WantUtils final {
 public:
+    /**
+     * ConvertToExplicitWant, convert implicit want to explicit want.
+     *
+     * @param want The implicit want.
+     * @return Error code of calling the function.
+     */
     static int32_t ConvertToExplicitWant(Want& want);
+
+    /**
+     * GetCallerBundleName, get caller bundle name.
+     *
+     * @param callerBundleName The caller bundle name.
+     * @return Error code of calling the function.
+     */
     static int32_t GetCallerBundleName(std::string &callerBundleName);
+
+    /**
+     * IsAtomicServiceUrl, check if the want contains atomic service url.
+     *
+     * @param want The implicit want.
+     * @return Flag if the want contains atomic service url.
+     */
     static bool IsAtomicServiceUrl(const Want& want);
 };
 }  // namespace AAFwk
diff --git a/services/abilitymgr/include/utils/window_options_utils.h b/services/abilitymgr/include/utils/window_options_utils.h
index 8ec5d5be8c..aa28a51862 100644
--- a/services/abilitymgr/include/utils/window_options_utils.h
+++ b/services/abilitymgr/include/utils/window_options_utils.h
@@ -25,12 +25,44 @@
 
 namespace OHOS {
 namespace AAFwk {
+/**
+ * @class WindowOptionsUtils
+ * provides window options utilities.
+ */
 class WindowOptionsUtils final {
 public:
+    /**
+     * SetWindowPositionAndSize, set window position and size.
+     *
+     * @param want The want param.
+     * @param callerToken The caller token.
+     * @param startOptions The start options.
+     */
     static void SetWindowPositionAndSize(Want& want,
         const sptr<IRemoteObject>& callerToken, const StartOptions& startOptions);
+
+    /**
+     * WindowModeMap, get window mode map.
+     *
+     * @param windowMode The window mode.
+     * @return The pair of the window mode result and the supported window mode.
+     */
     static std::pair<bool, AppExecFwk::SupportWindowMode> WindowModeMap(int32_t windowMode);
+
+    /**
+     * UpdateWantToSetDisplayID, update want to set display id.
+     *
+     * @param want The want param.
+     * @param callerToken The caller token.
+     */
     static void UpdateWantToSetDisplayID(Want &want, const sptr<IRemoteObject> &callerToken);
+
+    /**
+     * UpdateStartOptionsToSetDisplayID, update start options to set display id.
+     *
+     * @param startOptions The start options.
+     * @param callerToken The caller token.
+     */
     static void UpdateStartOptionsToSetDisplayID(StartOptions &startOptions,
         const sptr<IRemoteObject> &callerToken);
 };
diff --git a/services/abilitymgr/src/ability_manager_service.cpp b/services/abilitymgr/src/ability_manager_service.cpp
index a0520afc76..8f8cf6b2ac 100644
--- a/services/abilitymgr/src/ability_manager_service.cpp
+++ b/services/abilitymgr/src/ability_manager_service.cpp
@@ -1666,7 +1666,7 @@ int AbilityManagerService::StartAbilityForOptionInner(const Want &want, const St
 {
     HITRACE_METER_NAME(HITRACE_TAG_ABILITY_MANAGER, __PRETTY_FUNCTION__);
     // prevent the app from dominating the screen
-    if (callerToken == nullptr && !IsCallerSceneBoard() &&
+    if (callerToken == nullptr && !IsCallerSceneBoard() && !isCallByShortcut &&
         AbilityPermissionUtil::GetInstance().IsDominateScreen(want, isPendingWantCaller)) {
         TAG_LOGE(AAFwkTag::ABILITYMGR, "caller invalid");
         return ERR_INVALID_CALLER;
diff --git a/services/common/include/app_utils.h b/services/common/include/app_utils.h
index f4e7ed4118..a740d3b302 100644
--- a/services/common/include/app_utils.h
+++ b/services/common/include/app_utils.h
@@ -33,44 +33,253 @@ public:
     T value;
 };
 
+/**
+ * @class AppUtils
+ * provides app utils.
+ */
 class AppUtils {
 public:
+    /**
+     * GetInstance, get an instance of AppUtils.
+     *
+     * @return An instance of AppUtils.
+     */
     static AppUtils &GetInstance();
+
+    /**
+     * AppUtils, destructor.
+     *
+     */
     ~AppUtils();
+
+    /**
+     * IsLauncher, check if it is a launcher.
+     *
+     * @param bundleName The bundle name.
+     * @return Whether it is a launcher.
+     */
     bool IsLauncher(const std::string &bundleName) const;
+
+    /**
+     * IsLauncherAbility, check if it is a launcher ability.
+     *
+     * @param abilityName The ability name.
+     * @return Whether it is a launcher ability.
+     */
     bool IsLauncherAbility(const std::string &abilityName) const;
+
+    /**
+     * IsInheritWindowSplitScreenMode, check if it is inherit window split screen mode.
+     *
+     * @return Whether it is inherit window split screen mode.
+     */
     bool IsInheritWindowSplitScreenMode();
+
+    /**
+     * IsSupportAncoApp, check if it supports anco app.
+     *
+     * @return Whether it supports anco app.
+     */
     bool IsSupportAncoApp();
+
+    /**
+     * GetTimeoutUnitTimeRatio, get timeout unit time ratio.
+     *
+     * @return Timeout unit time ratio.
+     */
     int32_t GetTimeoutUnitTimeRatio();
+
+    /**
+     * IsSelectorDialogDefaultPossion, check if selector dialog is on the default position.
+     *
+     * @return Whether selector dialog is on the default position.
+     */
     bool IsSelectorDialogDefaultPossion();
+
+    /**
+     * IsStartSpecifiedProcess, check whether or not to start specified process.
+     *
+     * @return Whether or not to start specified process.
+     */
     bool IsStartSpecifiedProcess();
+
+    /**
+     * IsUseMultiRenderProcess, check whether uses multi-render process.
+     *
+     * @return Whether uses multi-render process.
+     */
     bool IsUseMultiRenderProcess();
+
+    /**
+     * IsLimitMaximumOfRenderProcess, check limit maximum of render process.
+     *
+     * @return Whether limit maximum of render process.
+     */
     bool IsLimitMaximumOfRenderProcess();
+
+    /**
+     * IsGrantPersistUriPermission, check whether to grant persist uri permission.
+     *
+     * @return Whether to grant persist uri permission.
+     */
     bool IsGrantPersistUriPermission();
+
+    /**
+     * IsStartOptionsWithAnimation, check whether the start options have animation.
+     *
+     * @return Whether the start options have animation.
+     */
     bool IsStartOptionsWithAnimation();
+
+    /**
+     * IsStartOptionsWithAnimation, check whether it is a multi-process model.
+     *
+     * @return Whether it is a multi-process model.
+     */
     bool IsMultiProcessModel();
+
+    /**
+     * IsStartOptionsWithProcessOptions, check whether the start options have process options.
+     *
+     * @return Whether the start options have process options.
+     */
     bool IsStartOptionsWithProcessOptions();
+
+    /**
+     * EnableMoveUIAbilityToBackgroundApi, enable move ui-ability to background api.
+     *
+     * @return Whether the enable move ui-ability to background api is successful.
+     */
     bool EnableMoveUIAbilityToBackgroundApi();
+
+    /**
+     * IsLaunchEmbededUIAbility, check if it is to launch embedded ui-ability.
+     *
+     * @return Whether it is to launch embedded ui-ability.
+     */
     bool IsLaunchEmbededUIAbility();
+
+    /**
+     * IsSupportNativeChildProcess, check if it supports native child process.
+     *
+     * @return Whether it supports native child process.
+     */
     bool IsSupportNativeChildProcess();
+
+    /**
+     * IsSupportMultiInstance, check if it supports multi-instance.
+     *
+     * @return Whether it supports multi-instance.
+     */
     bool IsSupportMultiInstance();
+
+    /**
+     * IsAllowResidentInExtremeMemory, check if it allows resident in extrem low memory.
+     *
+     * @param bundleName The bundle name.
+     * @param abilityName The ability name.
+     * @return Whether it allows resident in extrem low memory.
+     */
     bool IsAllowResidentInExtremeMemory(const std::string& bundleName, const std::string& abilityName = "");
+
+    /**
+     * IsAllowNativeChildProcess, check if it allows native child process.
+     *
+     * @param appIdentifier The app identifier.
+     * @return Whether it allows native child process.
+     */
     bool IsAllowNativeChildProcess(const std::string &appIdentifier);
+
+    /**
+     * GetLimitMaximumExtensionsPerProc, get limit max extensions per proc.
+     *
+     * @return Limit max extensions per proc.
+     */
     int32_t GetLimitMaximumExtensionsPerProc();
+
+    /**
+     * GetLimitMaximumExtensionsPerDevice, get limit max extensions per device.
+     *
+     * @return Limit max extensions per device.
+     */
     int32_t GetLimitMaximumExtensionsPerDevice();
+
+    /**
+     * GetCacheExtensionTypeList, get cache extension type list.
+     *
+     * @return Cache extension type list.
+     */
     std::string GetCacheExtensionTypeList();
+
+    /**
+     * IsAllowStartAbilityWithoutCallerToken, check if it allows start ability without caller token.
+     *
+     * @param bundleName The bundle name.
+     * @param abilityName The ability name.
+     * @return Whether it allows start ability without caller token.
+     */
     bool IsAllowStartAbilityWithoutCallerToken(const std::string& bundleName, const std::string& abilityName);
+
+    /**
+     * GetBrokerDelegateBundleName, get broker delegate bundle name.
+     *
+     * @return Broker delegate bundle name.
+     */
     std::string GetBrokerDelegateBundleName();
+
+    /**
+     * GetCollaboratorBrokerUID, get collaborator broker id.
+     *
+     * @return Collaborator broker id.
+     */
     int32_t GetCollaboratorBrokerUID();
+
+    /**
+     * GetCollaboratorBrokerReserveUID, get collaborator broker reserve uid.
+     *
+     * @return Collaborator broker reserve uid.
+     */
     int32_t GetCollaboratorBrokerReserveUID();
+
+    /**
+     * MaxChildProcess, get max child process.
+     *
+     * @return Max child process.
+     */
     int32_t MaxChildProcess();
+
+    /**
+     * GetMigrateClientBundleName, get migrate client bundle name.
+     *
+     * @return Migrate client bundle name.
+     */
     std::string GetMigrateClientBundleName();
 
 private:
+    /**
+     * LoadResidentProcessInExtremeMemory, load resident process in extreme low memory.
+     *
+     */
     void LoadResidentProcessInExtremeMemory();
+
+    /**
+     * LoadAllowNativeChildProcessApps, load allow native child process apps.
+     *
+     */
     void LoadAllowNativeChildProcessApps();
+
+    /**
+     * LoadStartAbilityWithoutCallerToken, load start ability without caller token.
+     *
+     */
     void LoadStartAbilityWithoutCallerToken();
+
+    /**
+     * AppUtils, private constructor.
+     *
+     */
     AppUtils();
+
     volatile bool isSceneBoard_ = false;
     volatile DeviceConfiguration<bool> isInheritWindowSplitScreenMode_ = {false, true};
     volatile DeviceConfiguration<bool> isSupportAncoApp_ = {false, false};