Description

Testing is an important activity to ensure software quality. Software testing is becoming more and more important as it is a widely used activity to ensure software quality. Testing is now an essential phase in software development life cycle. Test execution becomes an activity in the critical path of project development. During the software testing phase, many testing-efforts, such as the man power, the number of executed test cases, and the CPU time, are consumed. Software quality becomes more and more important in current competitive markets. Testing is a widely used quality assurance activity. Software testing can be defined as a process to detect faults in the entire developed computer software which falls in the category of Software development life cycle (SDLC) phases. Software testing helps us to detect the probable faults and errors in the developed software. Testing of the software for longer time does not ensure bug free software with higher reliability. Optimum amount of code also needs to be covered to make sure that the software is of good quality. It is hard to remove the entire faults in the software due to its complex nature. This is also termed as imperfect debugging. Error generation is defined as phenomena in which remaining faults in the software leads to further generation of faults. The probability of failure-less operation in a specified environment in a specific period of time under specific conditions is called as Software Reliability. Software Reliability Growth Models (SRGM) is developed for the estimate software reliability measures such as number of remaining faults, software failure rate and software reliability.The Software Reliability Growth Model is ready to detecting software defects and faults during the execution of the software. In existing Software Reliability Growth Model sometimes the testing technique is unable to remove fault and fault remains in the software and also do not find out cost of the software.