ITPEC FE Subject A April 2025 Question 47
Which of the following is a usage scenario for the adoption of UML as a technique for visualizing business processes?
Explanation
Several purpose-specific models in one standardized object-modeling notation — that is how UML visualizes a business process.
UML (Unified Modeling Language) is a family of diagrams with a standard notation. To model a business process, each viewpoint gets its own diagram: use case diagrams for who does what, activity diagrams for the flow of work, sequence diagrams for interactions over time, class diagrams for the objects involved. Together they describe the process from multiple viewpoints in object-oriented terms.
Answer (c)
Why not others:
- •(a) — entities, attributes and relationships in a data-oriented approach describe an E-R diagram
- •(b) — sources and sinks, data stores and processes linked by data-flow arrows describe a DFD
- •(d) — tracing the events for a single request as conditional branches is a single-viewpoint, flowchart-style description, not UML's multiple standardized models
Key rule: E-R diagram = data view, DFD = data-flow view, UML = a standardized set of object-oriented diagrams, each for one viewpoint.
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