n the context of database design, what is the relationship between conceptual, logical, and physical design?Question 15AnswerA.They are interchangeable terms for the same processB.Conceptual design leads to logical design, which informs physical designC.Physical design comes first, followed by logical and then conceptualD.These are completely separate processes with no relationship

The correct answer is B. Conceptual design leads to logical design, which informs physical design.

Here's the step-by-step explanation:

1. Conceptual Design: This is the first step in the database design process. It involves creating a high-level overview of the database, without going into the details of what data will be stored or how it will be organized. This stage often involves creating an Entity-Relationship (ER) diagram to represent the main entities in the system and the relationships between them.

2. Logical Design: This is the next step after the conceptual design. In this stage, the focus is on how data will be organized, what data will be stored, and how different pieces of data will relate to each other. This stage involves creating a detailed data model of the database, often using a Data Modeling Language (DML).

3. Physical Design: This is the final stage in the database design process. In this stage, the focus is on how the database will be implemented in the actual DBMS. This involves deciding on the physical storage of data, the access methods, the physical database layout, etc.

So, the process goes from a high-level overview (conceptual) to a detailed plan (logical) and finally to the actual implementation (physical).