Software Testing And Its Commercial Effectiveness

Software testing involves execution of a software or service to check the quality of software product or service. It evaluates whether software components meet the given requirements or not. It also evaluates functionality of the software and time taken by it to run. [1] Software testing is very important for controlling the cost of the software project. Traditionally, we design and develop the program first. However, Test Driven Design (TDD) involves writing the test cases for new functions of a software first and then implementation of the code to pass these tests. This cycle of writing test cases and implementing the code is repeated till all the functionalities of the code are implemented. [2] Now, we

Static testing is performed in the first phase of a software project. It begins the moment requirement documents are prepared so as to improve software quality by detecting the errors in the early stage of development. During the requirement phase, by detecting the maximum number of errors, one can save the time and cost of

Testing is when you check for faults, take measures to check quality, look at reliability and look at the

Integration testing can expose problems with the interfaces among program components before trouble occurs in real-world program execution. It identifies issues when two or more smaller blocks of code are combined.

multiple components. • integration Testing: It is a systematic technique for constructing the program structure while at the same time conducting tests to uncover errors associated with in the interface. It takes the unit

This chapter focuses on conducting the test case on each software unit and showing the obtained results in the form of snapshots taken where each snap describes the process being done.

System testing will help identify if normal or incorrect actions in the program are working correctly because every line of the program code should be able to execute test errors messages.

Testing is the next phase of the implementation phase. A comprehensive testing program includes a stepwise process starting with unit testing, followed by testing of group components called integration testing and concluded with entire systems test (Satzinger et al., 2004, p. 640). Individual units or modules are tested prior to integration with more advanced modules, using driver modules. Once a set of modules are put together, integration testing can take place. These test include checking for interface compatibility, run-time exceptions, parameter values and unexpected state interactions (Satzinger et al., p. 644-645). Jeff Theobald suggests that an effort should be made to concentrate not on just errors in a single application or module, but also the system as a whole and between systems (Theobald, 2007). After these tests are completed, the project goes on to system testing. System testing often involves daily “build and smoke” tests, where the system is set to run and is observed for “smoke” or errors (McConnell, 1996). The TPI credentialing system was tested in this manner. The project made it through the first two testing

An important rule to follow before integration testing is ensuring that the individual segments are working properly. System testing is the last step in the testing phase and is designed to ensure that the system as a whole is working properly. During system testing users have the opportunity to interact with the system.

It plays a crucial role in the development of an application. Testing should be done to validate the product whether it met all the requirements and to check whether it is being developed according to design or not.

Programming testing is the methodology of executing a program or framework with the purpose of finding faults. Testing is a procedure of affirming that item is working as per the requirments, fulfilling the client needs. Programming testing gives a way to decrease errors, cut maintenance and general programming costs. Various programming testing strategies, techniques, and systems have developed in the course of the most recent couple of decades promising to improve programming quality. Programming testing is vital part in the product development life cycle. Two regular methodologies are white box testing and discovery testing. There are diverse scope measure for testability to the source code, for example, statement coverage, branch coverage and condition coverage. In the branch coverage we ensure that we execute each branch in any event once For conditional branches, this implies, we execute the TRUE branch in any event once and the FALSE branch in any event once conditions for conditional branches can be compound boolean expressions a compound boolean

System Tests – To test the system as a whole to make sure all components are interacting with each other as they should.

Performed Regression Testing to verify that bug fixes did not break some other parts of the system.

Integration tests are used to test integrated software components that determines they actually run as one program. This testing is more concerned and the event driven with the basic outcome of the fields or screens. Integration tests demonstrate that even the components were individually satisfaction, as shown before by the successful unit testing, the both combination of the component is consistent and correct. Integration testing is mainly used at showing the problem that arise from the combination of components.

White box testing methodologies utilize the usage from claiming product parts will create test suites. The implementation of a software component describes how the component produces output values out of input values.