Use Case

Use case describes the context or process wherein a product or product component, subpart, is used within. Hence the use case specifies the function or operation of each deliverable product or component. Use case is specified in a procedural outline with logical branches and sub-cases to describe various conditions in the operation of a product or component. UML, pseudocode or a procedural language can be used to document the use case. Actors or user roles in the use case demonstrate interactions of the product or component with external entities.

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