Installation testing

Installation testing is a quality assurance process that verifies the correctness and reliability of an application’s installation procedure, ensuring that the process of deploying the software onto a target system produces a complete, functional, and correctly configured result.

Rather than testing the application’s features directly, installation testing focuses on the installation workflow itself — identifying steps that may fail silently, produce incorrect results, or leave the system in an inconsistent state. This includes checking that all necessary files are placed correctly, that configuration values are set appropriately, that dependencies are satisfied, and that the application launches and operates as expected immediately after installation.

Two closely related disciplines are [compatibility testing] and [configuration testing]. Compatibility testing determines whether the application performs as expected across a range of supported hardware and software environments — verifying that it functions correctly with various combinations of operating systems, browsers, drivers, and third-party packages that users might have installed. Configuration testing goes a step further by establishing the minimal and optimal hardware and software configurations required to run the application reliably, and examining how the system responds when resources such as memory, storage, or processing capacity are added, removed, or modified.

Together, these three forms of testing help ensure that an application can be successfully deployed and operated across the diverse range of environments its users are likely to encounter.