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2. Requirements analysis - Wikipedia

   en.wikipedia.org/wiki/Requirements_analysis

   A use case is a structure for documenting the functional requirements for a system, usually involving software, whether that is new or being changed. Each use case provides a set of scenarios that convey how the system should interact with a human user or another system, to achieve a specific business goal.

3. Use-case analysis - Wikipedia

   en.wikipedia.org/wiki/Use-case_analysis

   Use case analysis is a technique used to identify the requirements of a system (normally associated with software/process design) and the information used to both define processes used and classes (which are a collection of actors and processes) which will be used both in the use case diagram and the overall use case in the development or redesign of a software system or program.

4. Misuse case - Wikipedia

   en.wikipedia.org/wiki/Misuse_case

   Example of the Misuse case principle, which could be used in thinking about capturing security requirements. Misuse case is a business process modeling tool used in the software development industry. The term Misuse Case or mis-use case is derived from and is the inverse of use case. [1]

5. Software requirements specification - Wikipedia

   en.wikipedia.org/wiki/Software_requirements...

   A software requirements specification (SRS) is a description of a software system to be developed.It is modeled after the business requirements specification.The software requirements specification lays out functional and non-functional requirements, and it may include a set of use cases that describe user interactions that the software must provide to the user for perfect interaction.

6. Requirements elicitation - Wikipedia

   en.wikipedia.org/wiki/Requirements_elicitation

   Solicit participation from many people so that requirements are defined from different points of view; be sure to identify the rationale for each requirement that is recorded; Identify ambiguous requirements as candidates for prototyping; Create usage scenarios or use cases to help customers/users better identify key requirements

7. Use case - Wikipedia

   en.wikipedia.org/wiki/Use_case

   In software and systems engineering, a use case is a potential scenario in which a system receives an external request (such as user input) and responds to it. A use case is a list of actions or event steps typically defining the interactions between a role (known in the Unified Modeling Language (UML) as an actor) and a system to achieve a goal.