Traditional OLTP system employs Client/Server model based on Host/Terminal model. User needs to commit transaction by telnet, server receives the request and calls applications to handle the requests then it sends the results back.

• 传统的联机事务处理通常采用基于主机/终端的客户/服务器模型，用户在终端主要以远程登录的方式向服务器提交事务请求，服务器调度服务处理事务请求，并返回响应给用户终端。