ITPEC IP October 2024 Question 29
ITPEC IP October 2024 — Question 29 of 100
An E-R diagram organizes and represents data entities and the relationships among them during database design. Entities model distinguishable business objects such as Customer or Product, attributes describe them, and relationships show associations such as a Customer placing an Order. The conceptual model can then be translated into tables and keys.
Answer (a)
Why not others:
- (b) Arrow diagram represents activity dependencies for scheduling and critical-path analysis
- (c) Gantt chart displays project tasks against time
- (d) Flowchart shows the sequence of processing steps and decisions
Key rule: Use E-R diagrams for data structure and relationships; use arrow diagrams and Gantt charts for projects and flowcharts for process logic.
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