Application test process in product life cycle

This article explains the phases of application testing process in product life cycle and methodologies of software testing. Software testing is a series of processes begin with requirements step in the early phases of product life cycle and there are many different types of testing methods or techniques used as part of the software testing methodology. The methodology of software deployment chosen depends on the nature of project. Most software development projects involve periodic testing, but some methodologies focus on getting the input from testing earlier in the product life cycle.