Functional models describe business processes and the interaction of a software system with its environment. In object-oriented systems development, two types of models are used to describe the functionality of an system: use cases and activity diagrams. Both can be used to describe the current as-is system and the to-be system being developed.
Functional modelling models and presents the information gathered in the requirement gathering stage in the form of use case and activity diagrams and use case descriptions.
Table of contents
- Business process identification: UML - Use Case Diagram
- Business process modelling: UML - Activity Diagram
- Business process documentation: Use Case Description
Back to parent node: Analysis Modelling
System_Design_and_ModellingAnalysis_ModellingFunctional_Modelling
Reference
- Alan Dennis, David Tegarden, & Barbara Haley Wixom, 2012, Systems Analysis and Design with UML, 4th Edition, Wiley.