是多层Web应用程序和多层Web应用程序之间的区别? [英] what is the difference between multitier web application and multilayer web application?
问题描述
是多层Web应用程序和多层Web应用程序之间的区别?
what is the difference between multitier web application and multilayer web application?
推荐答案
层中的应用程序(软件),其中作为层参阅那些层的物理住所(硬件)参考抽象的特定层带
App.Layer ==软件-----逻辑
App.Tier ==硬件------物理
层数:
1)presentation层
2)业务层
3)数据访问层
4)数据层
5)外部系统接入层
Layers Refer to specific layers of abstraction with in an application (software) where as tiers Refer to the physical residence of those layers (hardware)
App.Layer == "Software"-----logical
App.Tier == "Hardware"------physical
Layers:
1) presentation layer
2) business layer
3) data access layer
4) data layer
5) external system access layer
层次:
1)presentation层(Web服务器)
2)数据层(数据库服务器)
Tiers:
1) Presentation tier (webserver)
2) Data tier (database server)
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