Non-Functional Testing : Introduction

• Non-functional testing is the type of testing which can be used to assess the non-functional requirements of the software product rather than the functional requirements.
• The non-functional requirement can include the performance of the software product, its scalability, or its usability.

Non-Functional Testing : Need

• It provides a great influence on customers regarding their satisfaction with the product.
• Non-Functional testing deals with:
  • The time taken by the software product to complete a particular task.
  • The response time of the software product.
  • Compatibility of the software product.
  • Compliance of the software product.
  • Opertebility of the software product.

Non-Functional Testing : Techniques

• There are four major non-functional testing techniques. These are:

Non-Functional Testing : Techniques

1. Portability Testing
   • Portability testing means to test the ability of the software product and its components for its effectiveness on one platform to other irrespective of the environment.
2. Performance Testing
   • Performance testing means the process of evaluating the quality of the software product under certain conditions for its various abilities.
   • Stress, Load, Soak, Spike and Configuration testing are the examples of performance testing technique.
3. Usability Testing
   • Usability testing means to test the ability of a software product, whether it fulfils the requirements, expectations and specifications of users.
   • It also deals with the amount of satisfaction attained by the users.
4. Security Testing
   • Security testing is done to check a software product for security flaws.
   • Security testing includes the following factors:
     • Integrity.
     • Confidentiality.
     • Authenticity.
     • Authorization.
     • Availability.
   • It is process that enables to reveal loopholes and snags in the information systems in order to provide security to the user data.