Importance Of Software Testing On Quality

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

For static testing techniques, reviews are the most important techniques to understand the application requirements, design, plan, and analysis. The document reviews are included in such user requirements document, design document, test plan document, or user manual document.

There are two common strategies for integration testing. These strategies are top-down & bottom-up. The top-down approach tests the highest-level code first down to the lowest level codes. This show defects at the top level of the software earlier in the process. The bottom-up integrated testing method test from the sub-units to the main-units of the program.

Test Plan: The software is tested using two levels of testing viz. black box testing and white box testing. White box testing could be carried out in three different phases viz. unit testing system/integration testing and validation testing. • Unit Testing: Unit testing, also known as Module Testing, focuses verification efforts on the module. The module is tested separately and this is carried out at the programming stage itself.Unit Test comprises of the set of tests performed by an individual programmer before integration of the unit into the system. Unit test focuses on the smallest unit of software design- the software component or module. Using component level design, important control paths are tested to uncover errors within the boundary of the module. Unit test is white box oriented and the step can be conducted in parallel for

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.

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

When a test of a tool is conducted, this method begins by reviewing the tool documentation of the tool to be acquired. If there is no documentation, an analysis of the tool is conducted. This method is reviewed by both the vendor and the testing organization, but this process can be time-consuming.

The initial and most important step of the testing phase is creating the test plan. The test plan should include what features and functionality will be tested based on the confirmed requirements. The next step is unit testing or code review. Unit testing involves the QA person testing the code on their machine. Once code has passed the unit test, it will then be released to the testing environment for system testing. The QA person can then test the integration of the different modules of the code as a program rather than separate parts as well as to find and report bugs and any data inaccuracy. The next phase of testing is the user acceptance test. In this phase the users test the program for functionality and data accuracy. The test phase isn’t a linear phase, more of a circular, back and forth between the developers and the QA people. After all phases have passed, the next step would be to open a change

Automated Regression Tests – which tests the system to analyse if any changes to code have broken previous working

A common area of confusion is the relationship between vulnerability scanning (automated) and pen-testing (expert-driven manual testing). Both involve a proactive and

Analyze, develop and document the application test plans based on software requirements and technical specifications.

There are a number of reasons why software testing with real users ' views are important, even if the software is still being developed. One of the main reasons is that testing can bring value to the end product. Software testing demonstrates that defects are detected in the application that was developed. The process validates and verifies the software in order to ensure that the product meets the highest business and technical requirements that directed its design and development in the first place. The stakeholders involved in development or purchasing of software spend tremendous amount of resources in doing so and tend to want the software testing efforts to succeed and ensure that a quality product be produced. Hence, it is important for them to test the software in order to validate their implementations.

The developers who worked on the application may change work or else choose to bring projects in-house to have it developed and /or maintained by our own staff as automated test facilitate code refactoring. With the automated test on hand developer can change the code and run the test to easily and find out that the changes made have impacted the system or not.