Multiple choice technology databases

A detailed, logical, and graphical representation of the entities, associations, and data elements for an organization or business area best describes:

  1. logical model

  2. data flow diagram

  3. entity-relationship diagram

  4. data tree
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

An Entity-Relationship Diagram (ERD) is the standard tool for creating detailed, logical, graphical representations showing entities (objects), their associations (relationships), and the data elements (attributes) that describe them. Logical models focus on structure but may omit graphical representation, data flow diagrams show information movement, and data trees are hierarchical structures not designed for this purpose.

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