Structural testing examines the right execution of internal units, such as program statements, data structures and blocks. This is done through test implementation by monitoring the program behavior related to these specific units.
The main principles of software testing can be best described on the basis of the main activities that take part in testing.
Nowadays the size, format and complication of software products are growing; that is why informal software testing without planning and preparation becomes insufficient.
The main goal of software testing is to guarantee that the software systems would work as expected by clients and users.
Quality analysis and quality review activities start immediately after the execution of chosen quality assurance activities has begun. Usually at the beginning of the engineering process, a small number of such operations are carried out in order to observe the changes of quality.
The central activity in the quality development process related to defects and assuring quality for the software products is the implementation of particular quality assurance activities. Accordingly, these activities have to and typically require a lot of human efforts as well as using computing and related resources.
As soon as particular quality purposes were set, we can choose proper quality assurance alternatives as part of a quality assurance strategy to reach these purposes.
Various quality attributes may have various levels of significance to various clients and users. Relevant quality views and attributes need to be identified first.
Black-box testing or it is sometimes called functional testing verifies the accurate handling of the external functions of the software product, or whether the behavior satisfies the user anticipations or product specifications.
Software verification activities test the conformance of a software system to its specifications.
