@@ -8,87 +8,56 @@ Note: The content of this SIG follows the convention described in OpenHarmony's
### Work Goals
Provide simple and effective Basic Software Services for Open Harmony Operating System; By modular design, Basic Software Services can support various kinds of devices, scaling from Level 0 to Level 5.
OpenHarmony Basic Software Services technology stack scope is shown in the following figure:
### Work Scope
Basic Software Services includes the following sub-systems:
| Name|Explanation|
| :----- | :----- |
|Startup System|Booting OpenHarmony, and provide init process manager and system parameters for the whole system|
|Upgrade System|Provide Operating System upgrade capability|
|DFX System|Design-for-Test, Design-for-Reliability and Design-for-Manufacturing|
|Event Notification System|Manage system and application notifications|
|Resource Management System|Manage system resources, including CPU, IO and memory，Background task manager，Workscheduler|
|Account Management System|Manage user accounts for Open Harmony|
|Barrier Free System|Provide barrier free common capabilities for Open Harmony|
|Time System|Provide time,timezone and timer capability|
|Input Method System|Provide input method framework and the management service|
|Theme System|Provide wallpaper framework and the lockscreen management service|
|Print System|Provide printing capability|
|Request System|Provide file upload and download capabilities|
|Miscellaneous Software System|Provide some miscellaneous services for Open Harmony|
|Startup SubSystem|Booting OpenHarmony, and provide init process manager and system parameters for the whole system|
|Upgrade SubSystem|Provide Operating System upgrade capability|
|DFX SubSystem|Design-for-Test, Design-for-Reliability and Design-for-Manufacturing|
|Account Management SubSystem|Manage user accounts for Open Harmony|
|Barrier Free SubSystem|Provide barrier free common capabilities for Open Harmony|
|Customization SubSystem|Provide customization framework for OpenHarmony|
| System Log | [hiviewdfx_hilog](https://gitee.com/openharmony/hiviewdfx_hilog) | HiLog provides logging utilities for system services and applications. |
| Log for Lite | [hiviewdfx_hilog_lite](https://gitee.com/openharmony/hiviewdfx_hilog_lite) | Logging system for OpenHarmony mini and small system. |
| Log&Event Service | [hiviewdfx_hiview](https://gitee.com/openharmony/hiviewdfx_hiview) | hiview component provides logging statistic utilities for business intelligence. It has a plugin platform for extending. |
| Log&Event Task for Lite | [hiviewdfx_hiview_lite](https://gitee.com/openharmony/hiviewdfx_hiview_lite) | hivew service for OpenHarmony mini and small system. |
| Checking Mode | [hiviewdfx_hichecker](https://gitee.com/openharmony/hiviewdfx_hichecker) | hicheck is used to help detect faults may be encountered during application development. |
| Process Stuck Detect | [hiviewdfx_hicollie](https://gitee.com/openharmony/hiviewdfx_hicollie) | hicollie provides process stuck detection and watchdog framework for developers. |
| Application Event | [hiviewdfx_hiappevent](https://gitee.com/openharmony/hiviewdfx_hiappevent) | hiappevent provides event reporting, persisting and querying capabilities for application development. |
| System Event | [hiviewdfx_hisysevent](https://gitee.com/openharmony/hiviewdfx_hisysevent) | hisysevent provides event reporting, persisting and querying capabilities for system development. |
| System Event for Lite | [hiviewdfx_hievent_lite](https://gitee.com/openharmony/hiviewdfx_hievent_lite) | hievent_lite provides fault logging, user activity and power comsumption statistics for mini and small system. |
| Fault Logger | [hiviewdfx_faultloggerd](https://gitee.com/openharmony/hiviewdfx_faultloggerd) | faultloggerd can collect logs when native processes crash. |
| System Info Dump | [hiviewdfx_hidumper](https://gitee.com/openharmony-sig/hiviewdfx_hidumper) | hidumper can export information about CPU, memory and System Abilities. |
| System Info Dump for Mini | [hiviewdfx_hidumper_mini](https://gitee.com/openharmony/hiviewdfx_hidumper_lite) | hidumper for OpenHarmony small system. |
| System Info Dump for Lite | [hiviewdfx_hidumper_lite](https://gitee.com/openharmony/hiviewdfx_hidumper_lite) | hidumper for OpenHarmony mini system. |
| Fault log for kernel | [hiviewdfx_blackbox](https://gitee.com/openharmony/hiviewdfx_blackbox) | blackbox can help collecting logs when system panic. |
| HiPerf | [hiperf](https://gitee.com/openharmony/developtools_hiperf) | hiperf can help developers to collect performace logs. |
| Profiler | [hiprofiler](https://gitee.com/openharmony/hiviewdfx_blackbox) | profiler is used by IDE for performance optimization. |
| Trace Optimizer | [developtools_bytrace](https://gitee.com/openharmony/developtools_bytrace) | bytrace proivdes performance tracing API for applications. |
| Bootstrapping for Lite | [startup_bootstrap_lite](https://gitee.com/openharmony/startup_bootstrap_lite) | bootstrap provides starting API to bootstrap system abilities for OpenHarmony lite system. |
| init | [startup_init_lite](https://gitee.com/openharmony/startup_init_lite) | init is used to start all userspace native processes. |
| Application Spawn | [startup_appspawn](https://gitee.com/openharmony/startup_appspawn) | Appspawn is used to spawn application processes. |
| Updating Framework for Lite | [update_ota_lite](https://gitee.com/openharmony/update_ota_lite) | ota_lite provides OTA updating framework for OpenHarmony mini and small system. |
| Updating App | [update_app](https://gitee.com/openharmony/update_app) | update_app provides user interfaces for end users to upgrade OpenHarmony devices. |
| Update Pakaging Tools | [update_packaging_tools](https://gitee.com/openharmony/update_packaging_tools) | Update Packaging Tools provide tools to build full OTA packages and differential packages. |
| Update Package Installer | [update_updater](https://gitee.com/openharmony/update_updater) | Update Package Installer can verify OTA package, and install the package to the OpenHarmony device. |
| Updating Service | [update_updateservice](https://gitee.com/openharmony/update_updateservice) | Updating Service can query and download OTA packages. |
| Account Manager | [account_os_account](https://gitee.com/openharmony/account_os_account) | Account Manager can create/delete, login/logout and query system accounts. It can also manage application accounts and distributed accounts. |
| Barrier Free Service | [accessibility](https://gitee.com/openharmony/accessibility) | Barrier Free Service can provide information exchange framework between application and accessibilities applications. |
| Enterprise Device Management | [customization_enterprise_device_management](https://gitee.com/openharmony-sig/customization_enterprise_device_management) | Enterprise Device Management provide API for enterprise applications to manager OpenHarmony devices in scale. |
| Customization Framework | [config_policy](https://gitee.com/openharmony/customization_config_policy) | Customization Framework provide API for accessing configuration files with priority. |
## SIG Members
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@@ -106,26 +75,13 @@ Basic Software Services includes the following sub-systems:
|轻量升级框架|[update_ota_lite](https://gitee.com/openharmony/update_ota_lite)|OTA（Over the Air）提供对轻量级设备远程升级能力，基于提供的接口进行二次开发后，可以让您的设备轻松支持OTA升级能力。升级子系统对用户屏蔽了底层芯片的差异，对外提供了统一的升级接口。|
