Providing traditional input methods, such as key, touch, keyboard, and mouse inputs | 提供传统的输入交互方式，例如按键、触控、键盘、鼠标等
Third-party open-source software weston | 三方开源软件weston
Window manager and compositor | 图形窗口合成器
Application compatibility test suite | acts应用兼容性测试套
Application execution and management framework | 用户程序运行管理框架
Common event and notification management framework | 通知和公共事件管理框架
Input Method Framework|输入法框架，主要是拉通应用和输入法，保证应用可以通过输入法进行文本输入
JS UI framework | JS UI开发框架
Ability management framework | 元能力框架
