IQBBA Standard glossary of terms used in Software Engineering 1.0
Understandability: The capability of the software product to enable the user to understand whether the software is suitable, and how it can be used for particular tasks and conditions of use [ISO/IEC 25000]. See also Usability. Usability: The capability of the software to be understood, learned, used and attractive to the user when used under specified conditions [ISO/IEC 25000]. Use case A sequence of transactions in a dialogue between an actor and a component or system with a tangible result, where an actor can be a user or anything that can exchange information with the system.