Why do you need Compatibility Testing?

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In today’s competitive world, it is important that the software or the products released to the buyers reflect true value for the amount they incur to buy or use the product. Thorough testing of the products helps create quality products that provide value for money. Various software tests are performed at different stages of software development, and testing is also conducted on the finished product prior to its release.  

This testing is done to ensure a competitive edge in terms of quality, compatibility, cost, and delivery of the product before it is delivered. Compatibility testing helps ensure complete customer satisfaction as it checks whether the application performs or operates as expected for all the intended users across multiple platforms. 

This non-functional testing is performed to ensure compatibility of a system, application, or website built with various other objects such as other web browsers, databases, hardware platforms, users, operating systems, mobile devices & networks, etc. It is conducted on the application to evaluate the application’s compatibility with different environments.  

It can be performed either through automation tools or it can be conducted manually. 

What is compatibility testing? 

Compatibility testing verifies that software performs as expected on diverse computing platforms and environments. It checks if an application works across various hardware configurations, operating systems, browsers, and other software.  

Need for Compatibility Testing  

Software applications released should be of high quality and compatible with all hardware, software, OS, platforms, etc., which is achieved through opting for compatibility testing. Compatibility can be ensured through adopting compatibility testing, which detects any errors before the product is delivered to the end user.  

This testing establishes or confirms that the product meets all the requirements set upon and agreed upon by both the developer and the end user. This stable product improves the firm’s reputation and propels the company to success. It is also true that quality products improve sales and marketing efforts and bring delight to the customer.  

Moreover, an efficient compatibility test effort ensures real compatibility among different computing environments. In addition, truly dynamic compatibility testing also confirms the workability and stability of the software that is of much importance before its release. 

Types of Compatibility Testing 

There are two types of compatibility testing: Forward compatibility testing and Backward compatibility testing. 

  1. Forward Compatibility Testing: This type of testing verifies that the software is compatible with the newer or upcoming versions and is thus named as forward compatible. 
  1. Backward Compatibility Testing: This type of testing helps to check whether the application designed using the latest version of an environment also works seamlessly in an older version. It is the testing performed to check the behavior of the hardware/software with the older versions of the hardware/software. 

Compatibility Testing  

Compatibility Testing can be performed for the following

  1. Operating systems: testing across OS like Linux, Mac OS, and Windows, etc. 
  1. Databases: testing across databases like Oracle, SQL Server, etc. 
  1. Browsers: testing across browsers like IE, Chrome, Firefox, Mozilla, Safari, etc. Some of the most common cross-browser testing tools include Browserstack, Crossbrowsertesting.com, Browserling, Browsera, Browsershots etc. 
  1. Other System software: testing web server, networking, messaging tools etc. 
  1. Mobile applications: testing across different mobile platforms, devices, networks etc. 

Compatibility Testing Defects 

Some of the most common Compatibility Testing Defects 

  • Differences in the user interface with respect to look and feel 
  • Changes with respect to font size, alignment issues 
  • Marked changes in CSS style and color, issues related to Scroll bar 
  • Existence of broken tables or Frames 

Compatibility Testing Defects 

Let us now have a look at the Compatibility Testing Process 

  • Initially, define the set of environments or platforms the application is likely to use 
  • Draw the platforms, software, and hardware to understand the expected behavior in different configurations 
  • Set up the testing environment 
  • Start testing across platforms, devices, and networks 
  • Note the behavior, report the bugs in an order 
  • Get the defects fixed 
  • Retest the application 

Finally, it is true that the end user might test the product on different platforms, or any other factor and they may find bugs in the application which is not worthy in terms of quality. To reduce such issues and to release quality products, it is important to test the application on all the above-mentioned functionalities. Thus, compatibility testing plays an important aspect in testing applications. 

Most companies today are taking advantage of getting their testing done outside, as they need not maintain a group of testers or maintain a wide range of hardware and software that is used in the process of testing. 

Cigniti’s Expertise with Respect to Compatibility Testing

Cigniti’s comprehensive compatibility testing services are performed across a variety of operating systems, browsers, databases, servers, and hardware, as well as different versions, configurations, display resolutions, etc. Moreover, we provide an end-to-end cross-browser test automation solution with a fully loaded Selenium test automation framework with integration plug-ins. 

Contact Cigniti’s Team of Test Automation experts to know more about our Cigniti’s testing services. 


  • Cigniti Technologies

    Cigniti is the world’s leading AI & IP-led Digital Assurance and Digital Engineering services company with offices in India, the USA, Canada, the UK, the UAE, Australia, South Africa, the Czech Republic, and Singapore. We help companies accelerate their digital transformation journey across various stages of digital adoption and help them achieve market leadership.

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