1. Adrian MacCallum & Rodger Morash
M3 - Part 3
Adrian MacCallum
&
Rodger Morash

2. What is Data Modeling?
Data Modeling is a technique for organizing and documenting a system’s DATA.

3. Why is data modeling important?
It removes biases.
It reduces the risk of missing business requirements.
It allows the system analyst to communicate with end users.

4. What is a key-based data model?
This model will eliminate non-specific relationships, add associative entities, include primary, alternate keys, and foreign keys, plus precise cardinalities and any generalization hierarchies.