The Application Disquisition Of Maintain Development In Agility

With advancement of information technology and arrival of economy globalization, the productivity of software development is more and more important, and now, some new development methods appear. These methods quickly improve the enterprise's productivity by the convenience, and get quickly expanded. They are called agility software development method.The software maintenance is a key realm of software engineering. The efficency of the software system is approved by software maintenance , It's very important to protract the period of a application by the research of software maintenance.Relative to the development of new software system, the time limit to the software maintenance development is shorter, and the scope of maintenance development is larger. According that one maintenance development needs few personnel, agility development method is well fit to it. If the software maintenance development adopts agility method, it will much more satisfy the need of customer, and improve the quality of IT service , and enhance the speed of software maintenance, and extend the life cycle of software.First the paper explains the advantages and disadvantages of the agile software development and introduces the importance of software maintaining and maintenance development.And by the analyses of the characteristics of software maintenance and the contrast between the software maintenance and agility method, the paper demonstrates the feasibility that agility method is adopted in maintenance development, and introduce the agile maintaining model.This paper gives some information and method of agility in the maintaining development by the application of agile method in the maintainenance development.And Based on these, a proposal of adopting agile method in maintenance development is given, then the feasibility and the process of application are discussed. In the end, one example approves the validity of the method is , and demonstrated the important worthiness of this application . It is an invention of software maintenance ,and will bring deep influence to software maintaining development in the future.