Question

There are ________ key steps in logical database modeling and design.

A) Two
B) Three
C) Four
D) Five

Answer 1

C) Four. There are four key steps in logical database modeling and design: conceptual design, logical design, physical design, and implementation.

Step-by-step explanation:

There are four key steps in logical database modeling and design.

1. Conceptual design: In this step, the database designer creates a high-level abstract representation of the database structure, focusing on identifying entities, attributes, and relationships.
2. Logical design: In this step, the designer translates the conceptual design into a logical model, using a data model such as the Entity-Relationship Model (ER Model) or the Unified Modeling Language (UML).
3. Physical design: In this step, the logical model is transformed into a physical model, which involves mapping the logical structures to physical storage structures, such as tables, columns, and indexes.
4. Implementation: In this final step, the database is created based on the physical design, and the necessary database management system (DBMS) software is installed.