Both the developer and the tester pursue the common goal: a software product that works correctly and appeals to their customers.
There are two main functions of software testing process: first is verification and the second is validation. The verification and validation functions can be defined as follows:
Verification is the process of examining software of a particular phase of the development life cycle to ensure that it satisfies the requirements of the previous phase.
Validation is the process of determining whether software is compliant with its requirements and performs its functions as desired at the end of the development effort.
The goal of verification is to ensure that the system meets all the requirements, so that each function can be traced back to the specific customer requirements. Put it another way, verification provides a guarantee that the right product is being created.
Third party software testing services are delivered to make it possible to build exceptional quality software products in a cost effective manner.
Verification focuses more on activities within a particular stage of the development process. For instance, one of the goals of system testing is to give assurance that the system design complies with the requirements that were used as an input to the system design stage. You can conduct unit and integration testing to confirm the correspondence between the program design and the system design. Put bluntly, verification ascertains that the product is being built based on its requirements.
Software performance testing services allow people to optimize performance parameters of their apps.
It remains to define yet another additional concept that is quality. Like beauty, quality is, in many ways, a subjective concept, so it is difficult to give an exact definition to it. Let us determine the quality of the software relying on the three criteria: failure in the field, reliability and customer satisfaction. A software product is considered to be of good quality if:
- The software has only few failures when the user is working with it. This indicates that only some defects have leaked into the field.
- The software is reliable, which means that it rarely crashes or shows unpredictable behavior when is run in a customer environment.
- The software satisfies most users.
Beta testing services involve a group of users to verify and validate software product before they are distributed to the general public.
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