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software testing

Software testing is a method involved with estimating and confirming product item or application does what it is supposed to do.

There are two types of testing:

  1. Functional Testing
  2. Non-Functional Testing

What is Functional Testing?

It is a kind of programming testing that approves the product framework against the functional requirements. The reason for Functional tests is to test each capacity of the product application, by giving suitable information and checking the result against the Functional requirements.

What is Non-Functional Testing?

Non-functional testing is a kind of Software Testing that is performed to check the non-useful prerequisites of the application. It confirms whether the behavior of the framework is according to the prerequisite or not. It tests every one of the angles which are not tried in functional testing.

Non-functional testing is a product testing method that actually looks at the non-useful properties of the framework. Non-functional testing is characterized as a kind of programming testing to actually look at non-useful parts of a product application. It is designed to test the status of a system as per nonfunctional parameters which are never reached by functional testing.

functional vs non-functional testing

Types of Non-Functional Testing

Below are the types of Non-functional testing:

  • Performance testing
  • Load Testing
  • Security testing
  • Portability testing
  • Accountability testing
  • Reliability testing
  • Efficiency testing

1) Performance testing

Performance Testing is a product testing process utilized for testing the speed, reaction time, strength, unwavering quality, versatility, and asset use of a product application under specific responsibility. The principle motivation behind Performance testing is that it put an end to the reason behind the slow performance of the software.

2) Load Testing

Load Testing is a non-functional software testing process in which the performance of software applications is tested under a particular expected load. It decides how the product application acts while being retrieved by various users at the same time.

3) Security testing

Security testing checks whether the software is vulnerable to cyber-attacks and tests the effect of malicious inputs on its activities. Security testing gives proof that frameworks and data are protected and solid, and that they don’t acknowledge unauthorized inputs.

4) Portability testing

Portability testing is a non-functional testing type that concludes the ease or difficulty with which a software component or an application can be moved from one environment to another. The work environment here suggests moving from one operating system to another operating system, one browser to another browser, or from one database version to another database version.

5) Accountability testing

An accountability test is done to check whether or not the framework is working accurately.

A function should give a similar outcome for which it has been made. If the framework gives the expected output, it gets passed the test otherwise failed.

6) Reliability testing

Testing is a product testing process that checks whether the product can play out an incentive behind this testing is to guarantee that the product item is without bugs and reliable enough for its expected purpose.

7) Efficiency testing

Efficiency testing tests the number of experiments executed separated by the unit of time. It evaluates the number of assets that were arranged and the number of were really used for testing. It is all about finishing the task with minimal effort.

Example Test Cases Non-Functional Testing

  • A password must be in encoded design – security testing
  • All through the new item deliveries, deals, occasions, advancements, and celebration offers, the e-commerce application will in general get numerous clients in an extremely brief time frame.- stress testing
  • A product that is functioning well in Windows 7 and measuring its behavior in Windows 8.- portability testing

Advantages and disadvantages of Non-functional Testing


  • Gives a more significant level of safety. Security is a basic component because of which the framework is protected from potential digital assaults.
  • Guarantees the loading capability of the system so that any number of users can use it simultaneously.
  • Enhances the performance of the system.
  • Test Cases are rarely changed so you don’t have to keep in touch with them at least a couple of times
  • Generally, time utilization is less


  • Every time the product is updated non-functional tests are performed once more
  • Because of software updates, individuals need to pay to re-examine the product; in this way, programming turns out to be over the top expensive.


Non-functional testing is a significant testing sort of software testing. It includes testing just non-practical necessities like execution, security, usability, dependability, and other non-useful boundaries.

Software testing is not viewed as complete with just finishing functional testing. This pair is necessary for the success of an application and a decent connection with the client.

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