Conceptual (Logical) database design consists of how many phases:
Correct answer: B. 3
- A. 2
- B. 3
- C. 4
- D. 5
Explanation
Conceptual database design is the initial phase of database design where the focus is on understanding the data requirements of the system, independent of any specific database management system (DBMS). It involves high-level modeling of data entities, attributes, and relationships between them.There are typically three main phases in conceptual database design:Requirements gathering and analysis: This phase involves understanding the needs of the users and the functionalities of the system. Data is collected through interviews, workshops, and studying existing systems.Conceptual modeling: In this phase, an Entity-Relationship (E-R) model is created to represent the entities, attributes, and relationships identified in the first phase. The E-R model captures the high-level data blueprint of the system.Data review and approval: The conceptual model is reviewed with the stakeholders to ensure it accurately reflects the data requirements. Any discrepancies are addressed, and the model is refined until it is approved.
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