Overview of Multitier Architecture (276)

In a multitier architecture environment, an application server provides data for clients
and serves as an interface between clients and database servers. This architecture is
particularly important because of the prevalence of Internet use.
This architecture enables use of an application server to:
■ Validate the credentials of a client, such as a Web browser
■ Connect to a database server
■ Perform the requested operation

多層體系結構概述
1. 在一個採用多層體系結構的系統中，客戶端與資料庫伺服器間還存在著為兩者交換資料的應用
伺服器
2. 應用伺服器的作用
* 驗證客戶端身份
* 連線資料庫伺服器
* 執行使用者提交的請求

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