Answer & Solution
Answer: Option C
Solution:
Data modeling is like creating a blueprint for your data. It shows how different pieces of information relate to each other.
This question asks about a
visual representation – something you can *see* – that shows how different parts of your database are connected.
Let's look at the options:
A. Data Dictionary: This is a list that describes the data, but it's not a visual representation of relationships.
B. Data Flow Diagram (DFD): This shows how data moves *through* a system, not the relationships between data *itself*.
C. Entity-Relationship Diagram (ERD): This is exactly what we're looking for! It uses boxes and lines to show different types of information (
entities) and how they're connected (
relationships).
D. Data Cube: This is used for data analysis, not for representing relationships in a database design.
Therefore, the answer is
C. Entity-Relationship Diagram (ERD) because it's the visual tool used to show how different parts of a database relate to each other.