Use Cases & UML Use Case Diagrams

What you will learn

• Study UML Use Case Diagrams.
• Study Modeling Elements.
• Study Three Relationship Types.
• Study Use Case Specifications.

Lesson summary

This lesson introduces Use Cases & UML Use Case Diagrams within the Model-Based Documentation module. It provides a structured overview of models and their properties, goal models (AND/OR trees), use cases and UML use case diagrams, data perspective (ER and class diagrams), and functional/behavioral perspectives (DFD, activity diagrams, statecharts, state machines). The main areas are UML Use Case Diagrams, Modeling Elements, Three Relationship Types, Use Case Specifications. The learning objectives are to study UML Use Case Diagrams; study Modeling Elements; study Three Relationship Types. You will see how the terminology fits into practical requirements-engineering work, which distinctions matter for the Foundation Level syllabus, and where candidates commonly confuse closely related ideas. The complete lesson adds worked examples, comparisons, interactive revision activities, and short checks that help you apply the concepts instead of memorising isolated definitions. Use this preview to understand the scope and decide where the lesson belongs in your study plan; enrolment unlocks the full written explanation and exercises.