1# @ohos.backgroundTaskManager (Background Task Management) (System API)
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3The **BackgroundTaskManager** module provides APIs to manage background tasks.
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5If a service needs to be continued when the application or service module is running in the background (not visible to users), the application or service module can request a transient task to delay the suspension or a continuous task to prevent the suspension.
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7If an application has a task that needs to be continued when the application is switched to the background and can be completed within a short period of time, the application can request a transient task. For example, if a user chooses to clear junk files in the **Files** application and exits the application, the application can request a transient task to complete the cleanup.
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9If an application has a service that can be intuitively perceived by users and needs to run in the background for a long period of time (for example, music playback in the background), the application can request a continuous task.
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11If a privileged system application needs to use certain system resources (for example, it wants to receive common events when suspended), it can request efficiency resources.
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13>  **NOTE**
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15> - This module is deprecated since API version 9. You are advised to use [@ohos.resourceschedule.backgroundTaskManager (Background Task Management)](js-apis-resourceschedule-backgroundTaskManager-sys.md)instead.
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17> - The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.
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19> - This topic describes only system APIs provided by the module. For details about its public APIs, see [@ohos.backgroundTaskManager (Background Task Management)](js-apis-backgroundTaskManager.md).
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22## Modules to Import
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24```ts
25import backgroundTaskManager from '@ohos.backgroundTaskManager';
26```
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28## BackgroundMode<sup>8+</sup>
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30**System capability**: SystemCapability.ResourceSchedule.BackgroundTaskManager.ContinuousTask
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32| Name                    | Value | Description                   |
33| ----------------------- | ---- | --------------------- |
34| WIFI_INTERACTION        | 7    | WLAN-related.<br>This is a system API.|
35| VOIP                    | 8    | Audio and video calls.<br>This is a system API. |
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