business logic layer

基本解释

The Business Logic Layer (BLL) is where the business rules are centralized.
业务逻辑层 (BLL) 是集中存放业务规则的地方。
It accepts the request from the browser, requests the service from the business logic layer, generates the presentation, and responds to the browser.
它从浏览器接受请求，从业务逻辑层请求服务，生成表示并对浏览器做出响应。
Business rules are centralized into the business logic layer that serves as an intermediary for data exchange between the presentation layer and the data access layer.
业务规则可以集中到业务逻辑层，该层充当表示层和数据访问层之间的数据交换的中间层。