产品安装程序会复制库，创建所需的配置文件，自动地更新系统配置。
The product installer copies the libraries, creates the necessary configuration files, and updates the system configuration automatically.
当系统中不再存在属于旧模式的日志记录时，影子复制将被自动删除，系统中就只有新的主复制。
After the log records pertaining to older schema no longer exist in the system, the shadow replicate is automatically deleted and system only has new master replicates.
不要复制业务逻辑，根据系统边界进行自动化，不要用UI层去验证业务逻辑。
Don't replicate business logic, automate along system boundaries, don't check business logic through the UI.
应用推荐