Tracking, software product cycles, and test iterations. Bug life cycle in software testing software testing class. Mistakes lead to the introduction of defects also called bugs. Bugs can be find out at any stage during sdlc software development life cycle, it could be at the designing phase srs or frd documents, requirements gathering, development phase, testing phase, user acceptance testing phase or even by the end user while using that application. Defect life cycle is a cycle which a defect goes through during its lifetime. Software bug can be defined as the abnormal behavior of the software. This starts as soon as any new defect is found by a tester and comes to an end when a tester closes that defect assuring that. Importance of testing in software development life cycle. Pdf a full life cycle defect process model that supports defect. Defect tracking and processing must be integrated in the project life cycle and the testing process for software. The defect life cycle and the software development. Defect life cycle is related to the bug found during testing. Testers are now required to be more technical and process oriented.
Software testing life cycle refers to a testing process which has specific steps to. A defect life cycle, also known as a bug life cycle, is a cycle of a defect from which it goes through covering the different states in its entire life. Overview the big picture all software problems can be termed as bugs. In software development process, the bug has a life cycle.
Bug starts when the defect is found and ends when a defect is closed, after ensuring it is not reproduced. A full life cycle defect process model that supports defect. What is bug life cycle or defect life cycle in software testing. This starts as soon as any new defect is found by a tester and comes to an end when a tester closes that defect assuring that it wont get reproduced again. Check below video to see detailed explanation on bug life cycle defect life cycle bug life cycle defect life cycle in software testing youtube. The number of states that a defect goes through varies from project to project. What is a defect life cycle or a bug lifecycle in software. Flaws in specifications, design, code or other reasons can cause these bugs. A software bug usually occurs when the software does not do what it is intended to do or does something that it is not intended to do.
What is bug life cycle or defect life cycle in software. Testing now is not only limited just to find bugs but has a wider scope and is required right. Defect life cycle, also known as bug life cycle is the journey of a defect cycle, which a defect goes through during its lifetime. The tester retests the bug after it got fixed by the developer. The defect life cycle and the software development life. And the importance of testing in soft ware development life cycle is to improve reliability, performance and other important factors, which may define under srs software requirement specification. Removing bugs found in dynamic testing requires a solid process for investigating failures, usually via a defined bug.
It starts when defect is found and ends when a defect is closed, after ensuring its not. It varies from organization to organization and also from project to project as it is governed by the software testing process and also depends upon the tools used. If the bug persists even after the developer has fixed the bug, the tester changes the status to reopened. Any flaw, error, fault, gap in requirements or deviation from the expected output of the software application under test is called as bug or defect. In this tutorial, we discuss the evolution of software testing, software testing life cycle and the various phases involved in stlc. The defect life cycle can vary from organization to organization and also from project to project based on several factors like organization policy, software development model used like agile, iterative, project timelines, team structure etc. The defect life cycle and the software development life cycle rex black, president, rbcs, inc.