Difficulty: Easy
Correct Answer: Incorrect
Explanation:
Introduction / Context:An enterprise data model (EDM) is a conceptual, business-oriented model describing major entity types and their relationships across the enterprise. It is not the same thing as a physical or fully relational schema. This item distinguishes conceptual modeling from relational implementation.
Given Data / Assumptions:
Concept / Approach:Conceptual → Logical → Physical. The enterprise model lives primarily at the conceptual level. The relational model appears at the logical/physical levels when implementing in a DBMS. Thus, equating an EDM with a relational model is incorrect, even though the EDM will eventually be elaborated into relational structures.
Step-by-Step Solution:
Identify scope: cross-enterprise, business concepts (EDM).Contrast with relational artifacts: tables/columns/keys.Note transformation path: conceptual → relational design.Conclude the statement is false as written.Verification / Alternative check:Methodologies (e.g., top-down data architecture) explicitly separate enterprise conceptual models from DB-specific relational schemas.
Why Other Options Are Wrong:
Common Pitfalls:Jumping to physical design too early; mistaking ERDs at enterprise scope for physical table designs.
Final Answer:Incorrect
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