Functional Testing – What Should the System Do?
The functions are “what” the system should do. Examples:
- A QR (Quick Response) code must contain the relevant information and links for the intended use
- Just what is a contract these days? - If the supplier is allowed to change the price mid-contract, why can't the consumer?
- The functional requirements may be described in work products such as business requirements; and user stories.
- Functional testing should be carried out by developers, testers and users.
- It considers external (black-box) behaviour
- Coverage can be measured - so this must be given consideration when planning testing.