Non-functional simulation (testing) targets non-functional requirements: the way a system performs, rather than specific behaviors. This is in contrast to functional testing, which targets functional requirements that describe the functions of a system and components. The names of non-functional tests are often used interchangeably because of the overlap between various non-functional requirements.
For example, performance is a broad term and will have coverage for attributes like reliability and scalability.
Non-functional testing is concerned with NFRs and is designed specifically to evaluate the readiness of a system according to the various quality attributes which are not covered by frequent functional testing. For example, ...
