外文翻译中小型企业员工工作信息管理系统内容摘要:

his paper introduces a novel Web application frame basedon MVC. This frame separates the transaction logic from the presentation format. It alsoimproves the system maintainability scalability and performance by using the moduledatabase template database messaging object and buffer words: MVC Design Pattern Web Application1. Introduction Web application system is a transaction system based on B rowser/Server model. Itexploits many kinds of dynamic Web developing technologies. At present Web applicationdeveloping patterns and tools are one of the topics of the software design. They directlyinfluence several key factors such as maintainability scalability stability and the this paper the purpose of MVC1based Web application design pattern is to resolvethe two factors – maintainability and scalability which are the stubborn problems in theWeb application development. By introducing the MVC design pattern into the Webapplication development the implementation of system transaction logic can be separatedfrom the system presentation. MVC consists of three kinds of objects. 1 the Model: is the application object 2 theView: is its screen presentation 3 the Controller: defines the way the user interface reactsto user input. Before MVC user interface designs tended to lump these objects MVC decouples them to increase the flexibility and reuse. MVC decouplesviews and models by establishing a ―subscribe/notify‖ protocol between them. A viewmust ensure that its appearance reflects the state of the model correctly. Whenever themodel’s data changes the model notifies views that depend on it. In response each viewgets an opportunity to update itself. This approach lets you attach multiple views to a Luo Guangchun the . of UEST of China Wang Yanhua the Master of the UEST of China Lu Xianliang theprofessor of UEST of China advisor of . Han Hong the . of UEST Of Chinamodel to provide different presentations. You can also create new views for a modelwithout rewriting . Background and Problems Even though the MVC design pattern was already put forward in smalltalk80 andwidely used in software design it is difficult to introduce it into the Web applicationdevelopment. It was mainly due to the following two factors: 1 First it was difficult toseparate the programming language from HTML. Early CGI pro。
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