QA as a Service: Value of Test Coverage in Software Testing

Test coverage is one of the metrics used to assess the quality of software testing process. It measures how many parts of codebase have been tested to find untested parts. In other words, it is a useful tool to identify the amount of testing carried out by a test suite.  

QA as a service is available to know which area of a requirement or how much of executable code has not been executed by a set of test cases.

If it is stated that software testing is a process of verifying whether the app has expected behavior by running a set of test cases, then the last set of test cases is test coverage. By this is meant that the greater test coverage, the more tests are required to verify a requirement or code under test.

Considering the complexity of software systems that can be found everywhere in our modern society, one may indeed claim that it is impossible to achieve maximum test coverage (namely 100% test coverage), for the reason that combinations of all this application data tend to be infinite.

There is a variety of software quality assurance testing services that include integration testing, IT business analysis and many other demandable activities for the purpose of reaching software development objectives and improve the effectiveness of IT processes that produce excellent results.

Accordingly, there is no a unified approach to the assessment of test coverage. As a matter of fact, there are different test coverage types:

Requirements Coverage is a measurement of how thoroughly software functional and non-functional requirements are tested by a particular test set, namely by building traceability matrix.

Code Coverage is a measurement of how many parts of the executable code are tested by tracking the untested software components.

Control Flow Coverage is a measurement used to identify the paths of executing software code module and creating executable test cases for testing these paths.  

• Control Flow Testing is one of the white box testing techniques. This type of testing is based on building control flow graphs, the main blocks of which are:
• Process Control Block – one entry point and one exit point.Alternative point – one entry point and two exit points.
• Connection Point – two or more entry points, one exit point.

Software test services can include the provision of these test coverage types, and the work will be performed by professionals.