Software Testing In The Software Development Cycle

Software testing is a critical element of software quality assurance which represents the ultimate review of the specification design and coding. It includes verification of the basic logic of every program and the entire system works properly. Testing individual program involves and attempts to be sure that most likely part properly. Programmer facilities testing by coding as clearly as possible. Test case design is done a set of techniques for the creation of cases that meet overall testing objectives.

Software Validation and Verification A. Concepts and Definitions Software Verification and Validation (V&V) is the process of ensuring that software being developed or changed will satisfy functional and other requirements (validation) and each step in the process of building the software yields the right products (verification). The differences between verification and validation are unimportant except to the theorist; practitioners use the term V&V to refer to all of the activities that are aimed at making sure the software will function as required. V&V is intended to be a systematic and technical evaluation of software and associated products of the development and maintenance processes. Reviews and tests are done at the end of each phase of the development process to ensure software requirements are complete and testable and that design, code, documentation, and data satisfy those requirements. B.

I. Introduction Functional Testing is basically testing software based on its functional requirements. Meaning it makes sure that the SUT (System Under Test) or program physically works the way it is intended. Now that there is a basic understanding of what Functional Testing is by the definition provided above; How about going more In-depth on the topic. This paper will provide answers to questions that the writer had on the topic as well as to the overall importance of Functional Testing.

The Main purpose of testing is to check that software meets all specified requirements that guided its design and development. There are many types of software testing techniques that can be performed with in software development life cycle. Out of many software testing techniques, Acceptance testing (AT) is the key feature of software implementation. As the acceptance testing mainly constituents that the system should be acceptable by its owner or user it is also called as User Acceptance Testing (UAT). UAT is performed to ensure that the new system meets all the essential user requirements.

It is a method of testing software that tests internal structures or workings of an application as shown in figure 1.4 [43]. Figure 1.4 White Box Testing In white-box testing an internal perspective of the system, as well as programming skills, are used to design test cases. The tester chooses inputs to exercise paths through the code and determine the appropriate outputs. This is analogous to testing nodes in a circuit, e.g. in-circuit testing (ICT).

Testing teams know how vital the testing phase is in the development lifecycle. Testing is done with progression of the software into production in mind starting with unit, integration, system, and finally acceptance testing. Each testing process is designed to efficiently examine the software and move it through the levels. There is no simple way to test a piece of software, this process was designed to make it easier on developers to fix software before it leaves their hands. After seeing the testing process I see how important it is to detect problems before releasing software and to fix them on the spot during development.

Now a days most carefully planned and designed software contains some defects. The Main aim of testing is to identify these defects. It also checks faults, errors, failures, and bugs in specific designed software. It requires creating and executing many tests. Software testing is the mensuration of software quality.

SDLC (Software Development Life Cycle) is a process which consists of series of well-planned actions to develop or make changes in the software products. This chapter provides description on the SDLC basics, SDLC models and their application in the software industry. This gives directions for the quality stakeholders of any Software project and the product or project managers. SDLC, Software Development Life Cycle is a process generally deployed by software industry to design, develop and test high quality software. It is also known as Software development process.

Software Engineering (SE) is the application of a systematic, disciplined, quantifiable approach to the development, operation, and maintenance of software, and the study of these approaches; that is, the application of engineering to software because it integrates significant mathematics, computer science and practices whose origins are in Engineering. Development of sound software projects requires a proper process to be followed by the organization. This software process which is required to produce software differs from company to company. Software lifecycle model provides a method for developing a software product. A proper software life cycle model can help an organization not only in building a software product but it also serves as a basis for planning, organizing, staffing, coordinating and directing various other software development activities.

Software integration testing is challenging and has rules and strategies to make sure each part of the software is thoroughly checked before it is given the OK. These test must be performed to make sure there are no errors in the script. Integration is typically performed in stages using the SDLC (Software Development Life Cycle) each level builds on the preceding level. So it is very important that the testing is completed in the precise order. Devising a data conversion strategy and a changeover for TIMS must include the design plan, post-implementation appraisal, fact assembly, topics to cover, and who should accomplish it.