The **SystemParameter** module provides system services with easy access to key-value pairs. You can use the APIs provided by this module to describe the service status and change the service behavior. The basic operation primitives are get and set. You can obtain the values of system parameters through getters and modify the values through setters.
For details about the system parameter design principles and definitions, see
> - The initial APIs of this module are supported since API version 9. Newly added APIs will be marked with a superscript to indicate their earliest API version.
> - The APIs provided by this module are system APIs.
> - Third-party applications cannot use the APIs provided by this module, because system parameters each require specific discretionary access control (DAC) and mandatory access control (MAC) permissions.
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The original bundle name **@ohos.systemParameterV9** will be deleted and cannot be used anymore. Use the new bundle name **@ohos.systemParameterEnhance** instead.
**Adaptation Guide**
Change the bundle name from **@ohos.systemParameterV9** to **@ohos.systemParameterEnhance**. The APIs remain unchanged. The following is the sample code: