Introduction to Software engineering 11th Chapter

This chapter mainly introduces the software Evolution software's problem modification and adaptability improvement, the characteristic software maintenance is an inevitable process. The continual modification of software can lead to software degradation. The evolution characteristic of software system is that the efficiency of software development built up in the early stage of development is independent of the resources invested. The addition of new features needs to be patched constantly. Software maintenance refers to modifications made to software products during the software maintenance phase. Type: Corrective maintenance adaptability, maintenance integrity, maintenance software maintenance is affected by the development process of large software maintenance difficult, high cost. Work includes: Establishing maintenance organizations, reporting and evaluating maintenance applications, and implementing maintenance processes. The software re-engineering takes the system understanding as the foundation, unifies the reverse engineering, the reconstruction and the forward engineering method, the present system reconstruction creates the new form. Main activities of the. Object selection,. Reverse engineering, document refactoring, code refactoring, data refactoring.

Introduction to Software engineering 11th Chapter