A CDE Definition
An action that takes place between two entities, typically between the user and the computer. A use case may also be an event that takes place between two computers. See use case analysis.
use case analysis
A method for designing information systems by breaking down requirements into user functions. Each use case is a transaction or sequence of events performed by the user. Use cases are studied to determine what objects are required to accomplish them and how they interact with other objects. See use case and UML.
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