Definition
The process of confirming that hardware, networks and the system environment meet the requirements necessary for correct operation of a computerised system.
Human Explanation
It confirms that the environment supporting the system is properly prepared.
Why it Matters
Defective infrastructure can cause failures even when the application itself is correct.
Conceptual Boundary
It concerns the operating environment rather than the business logic of the application.
Practical Perspective
Scope may include servers, operating systems, networks, databases, storage and supporting services.