Requirements Based Testing
A software is developed as per the requirements given by the customers. The requirement based testing is done to check whether the software is built with respect to the specified specifications, and requirements. It checks methodically if all the requirements are working correctly. It also validates whether the software functions with respect to the prearranged benchmarks to detect any errors.
What is Software Requirements Based Testing?
The requirements based testing points to an important phase which includes verifying a software with respect to a particular norm. It ensures that the software is developed as per the given requirements, and its working is aligned as per the expected results. The test cases are designed as per the specified requirements. This type of testing systematically evaluates all the modules to check whether they are working fine. It is recommended to develop the test strategy as per the requirements so that the software is developed with the preconceived guidelines, and solves end user expectations.
Formula to calculate the Software Requirements Based Testing
The software requirements based testing can be calculated with the help of the test cases which are executed with the respect to the documented requirements.
Test Effectiveness of Requirements Based Testing =
(Total count of test cases verified with respect to the requirements /
Total count of test cases) * 100
Principles of Software Requirements Based Testing
The principles of the software requirements based testing are listed below −
- The requirements based testing establishes the connection between every test case with respect to their requirements to enable easy tracking.
- The requirements based testing allows the testers to understand, verify, and analyze requirements. Thus it eliminates the ambiguities in the requirements.
- The requirements based testing is useful in both the verification, and validation phases. It ensures that the software is built as per the compliances, and the requirements given by the customers, thereby giving reliability to the software.
- The requirements based testing accommodates changes to the requirements to be applicable to the software, thereby giving a lot of flexibility.
- The requirements based testing enables methodical verification of all the requirements during the testing phase.
- The requirements based testing gives the scope of proper documentation of requirements, test cases, test outcomes etc at the time of testing.
Importances of Software Requirements Based Testing
The importances of the software requirements based testing are listed below −
- The requirements based testing enables the software, and its functionalities to be developed as per the design specification from the very initial phases of the software development lifecycle(SDLC). This ensures that the software works as expected.
- The requirements based testing ensures that the software is developed totally as per the documented requirements given by the clients. It is very critical in ensuring that the software is aligned with respect to the fixed conditions, standards, and compliances.
- The requirements based testing allows verification of each functionalities of the software with respect to the presumed conditions.
- The requirements based testing identifies all the unclear requirements from the very early stages of the SDLC so that there are ample opportunities to rectify them prior to the development of the software.
- The requirements based testing enhances the overall quality, and dependability of the software. By making sure that the software is developed as per the requirements, it adds to robustness, performance, reliability, and user involvement to the software.
Types of Software Requirements
The various kinds of the software requirements are listed below −
#1) Functional Requirements − They are focussed on dealing with the particular actions, processing, handling of information, and other default features of the software.
#2) Non-Functional Requirements − They are focussed on dealing with the parameters such as security, speed, performance, reliability, user involvement etc.
#3) Business Requirements − They are focussed on dealing with the fundamental objectives, and expected results so that the software meets all the expectations.
#4) User Requirements − They are focussed on dealing with the customer preferences, usability conditions, and accessibility problems.
#5) System Requirements − They are focussed on dealing with the required test environment, and the resources that the software requires to execute seamlessly. They include the hardware compatibility, dependencies in the software, network connectivity, and other technical requirements.
#6) Stakeholder Requirements − They are focussed on dealing with the feedback, and suggestions from all the project stakeholders on the software development process. They ensure that various viewpoints are considered at the time of the software development.
#7) Interface Requirements − They are focussed on dealing with how the interfaces communicate with other exterior software, and platforms. They also consider the protocols followed during communication, formats of data etc.
Advantages of Software Requirements Based Testing
The advantages of the software requirements based testing are listed below −
- The requirements based testing ensures that the software is built as per the customer requirements, and assumptions.
- The requirements based testing identifies defects in the requirements from the very early stages of the SDLC.
- The requirements based testing establishes a clear traceability between the requirements, test cases, and the related defects during the complete development phase. This type of testing helps the team with the optimal allocation of resources so that the high-risks requirements are prioritized.
Disadvantages of Software Requirements Based Testing
The disadvantages of the software requirements based testing are listed below −
- The in competencies in the requirements may lead to unproductive development of test cases.
- The rigid requirements may curb the scope of testing. It may also cause missing of the scenarios which are not implicitly described but are required to be added to verify the functionalities.
- The requirements based testing requires exhaustive documentation, and traceability of the test cases. It leads to consumption of a lot of time, and resources in the events wherever there changes in the requirements. The efficiency of the requirements based testing is dependent on the precision of the requirements shared by the customers. The ambiguities in the requirements misguide the complete testing process.
Conclusion
This concludes our comprehensive take on the tutorial on Software Requirements Based Testing. Weve started with describing what is software requirements based testing, formula to calculate the software requirements based testing, what are the principles of software requirements based testing, what are the importances of software requirements based testing, what are the various kinds of software requirements, what are the advantages of software requirements based testing, and what are the disadvantages of software requirements based testing. This equips you with in-depth knowledge of Software Requirements Based Testing. It is wise to keep practicing what youve learned and exploring others relevant to Software Testing to deepen your understanding and expand your horizons.