Research On Software Reliability Models Predictive Evaluation System

In view of the problem of poor tolerance of single software reliability model and the poor effect of software reliability prediction and evaluation tools,the paper designs a software reliability prediction and evaluation system which integrates various software reliability models to solve the increasing demand in software reliability prediction and measurement.The system is based on the Java platform,using HTML language to describe the Web document,using Java Server Pages,adding Java program Fragments(scriptlets)and JSP tags to traditional Web page HTML files makes up the JSP Web Java program fragment and realizes the functions needed to build dynamic Web sites through database connections,redirecting Web pages,and sending e-mail.By analyzing the requirement of software reliability prediction and evaluation system,this paper describes the system specific function module,structure and database design.The platform subsystem adopts the inheritance design,in order to further extend the system;the algorithm design of four kinds of software reliability models adopts the strategy mode,defines the algorithm cluster,encapsulates each other,and guarantees the interchangeability of each other,so as to ensure that the customer of the system is not affected by the change of the algorithm.All subsystems in the system are independent and reusable,from the business logic point of view,the system's business logic is encapsulated as an entity,independent of the user interface and the existence of the database.The purpose of this design is to realize the reuse of the complete business logic of the system and reduce the cost of development and maintenance.Through the system function,performance,security,reliability and operability test,software reliability prediction and evaluation system has a certain breadth and practical application value.