Purpose: When you are able to recognize and analyze information, you can better understand how things work and potentially make them better.
What is a Conceptual Model?
- They model functional and informational needs of a business.
- Based on current needs and may reflect future needs.
- Deals exclusively with business needs, does not deal with implementation problems.
- Called "Entity Relationship Model"
- Shown with an "Entity Relationship Diagram" (ERD)
What are the purposes of a Conceptual Model?
- To describe exactly the information needs of a business.
- Facilitate discussion.
- Prevent mistakes, misunderstandings.
- Form important "ideal system" documentation.
- Form a sound basis for physical change design.
- Document the processes of the business. (Business Rules)
- Take into account regulations and laws governing this industry.
What is a Physical Model?
- Quite frankly, the physical model is nothing more than the finished product.
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