What are compatibility tests and how are they performed?

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Compatibility Testing:

Compatibility testing is a non-functional testing that assesses how well a software application performs across different environments, devices, browsers, and operating systems. The primary objective is to ensure that the software operates correctly and consistently on multiple platforms and configurations that users may use.

What is backwards and forwards compatibility testing

Backward compatibility testing verifies that a new version works with older ones, while forward compatibility testing verifies that an older version works with newer ones. That means you might ensure that a new OS update will work great with your software via forward compatibility testing; and ensure that users still on older operating systems continue having a great experience in you new update in backwards compatibility testing.

Key Aspects of Compatibility Testing:

  1. Cross-Browser Testing: Ensures the software works seamlessly across different web browsers such as Chrome, Firefox, Safari, Edge, and others.

  2. Cross-Device Testing: Validates the software's functionality on various devices like desktops, laptops, tablets, and mobile phones, considering different screen sizes and resolutions.

  3. Cross-Platform Testing: Verifies that the software behaves consistently across diverse operating systems like Windows, macOS, Linux, Android, iOS, etc.

Process of Compatibility Testing:

  1. Identifying Target Environments: Determine the browsers, devices, and operating systems that are crucial for the software's user base.

  2. Test Execution: Run the software on different browsers, devices, and OS combinations to assess its performance and functionality.

  3. Issues Identification: Identify compatibility issues like layout discrepancies, functionality differences, or performance variations across platforms.

  4. Bug Reporting: Document and report the discovered issues to the development team for resolution.

Types of Compatibility Testing:

  • Browser Compatibility Testing: Verifies that the software displays and functions consistently across multiple web browsers.

  • Device Compatibility Testing: Ensures the software performs well across various devices, considering differences in screen sizes, resolutions, and hardware capabilities.

  • Operating System Compatibility Testing: Checks the software's compatibility across different operating systems, ensuring consistent behavior and functionality.

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