All About Non-functional Testing

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Testing is an essential element of any software development process, and its increasing importance can be linked to the fact that current applications and ecosystems have experienced significant changes. Testing is essential for ensuring that software meets all standards and criteria and ensures client satisfaction. Non-functional requirements (NFRs) have grown in importance compared to their functional counterparts, necessitating and emphasizing the necessity of testing these NFRs.

Non-functional testing evaluates parts of software applications that are unrelated to defined user activity or function. It focuses on non-functional features of an application, such as performance, usability, security, compatibility, and all other areas that are not checked during functional testing.


Why is Non-Functional Testing Necessary?


For newly designed software, both functional and non-functional testing is required. Non-functional testing verifies the capacity to work in an external environment, whereas functional testing verifies the validity of internal functionalities. It paves the way for program installation, configuration, and use. Non-functional testing collects and provides the measurement and metrics utilized in internal research and development. Non-functional testing includes in-depth information about a product's behavior and the technology it employs. It aids in the reduction of software manufacturing risk and expenses.


Objectives for Non-functional Testing



  • Non-functional testing can help to improve a product's dependability, performance, manageability, and accessibility.

  • Reduces the likelihood of and manufacturing costs associated with non-components of the commodity.

  • Enhances the product's installation, configuration, execution, control, and tracking.

  • For internal analysis and development, measurements and metrics should be gathered and generated.

  • Develops and reinforces your knowledge of the product's activities and the technology it employs.


Characteristics of Non-functional Testing


  • Non-functional testing should be quantitative. Thus there should be no subjective grading such as "good," "better," "nicer," and so on.

  • Accurate data will be unknown at the start of the demand period.

  • It's critical to prioritize the specifications.

  • Ensure that quality attributes are adequately recognized in software engineering.


Parameters of Non-functional Testing




  • Security: This parameter specifies how a system is protected from intentional and unintentional attacks from internal and external sources. Security Testing is used to verify this.


  • Reliability: The degree to which a software system consistently and without error performs the specified tasks. Reliability Testing is used to verify this.


  • Adaptability: This parameter assures that the computing system functions smoothly and that it can be restored in the event of a failure. This is confirmed by recovery testing.


  • Accessibility: This characteristic determines how much the user may rely on the system when operating. This is confirmed by stability testing.


  • Usability: The ease with which a user can read, perform, and plan inputs and outputs through machine interaction. This is confirmed via usability testing.


  • Interoperability: This non-functional criterion certifies a software system's interactions with other software systems. This is confirmed by interoperability testing.


  • Scalability: This refers to the ability of a software application to scale up its processing capability in response to increased demand. Scalability Testing is used to verify this.


  • Efficiency: A software system can manage the capacity, quantity, and response time.


  • Portability: Software can migrate away from its existing hardware or software environment.


  • Reusability: It refers to a part of a software system that can be repurposed for another purpose.


Process of Non-functional Testing

The non-functional testing approach consists of six primary phases during which the testing team plans and works to assess a system's functional demands and readiness. The steps of non-functional testing:




Conclusion



Non-functional testing is an essential part of the software testing process, and it assures that the application or product behavior is following the business's needs. You can either incorporate non-functional aspects into the test plan or create a different approach.
Location: Houston, TX, USA

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