Computer Science Homework Help

Data modeling provides a logical representation of the system data. This is a high-level view that is not concerned with how or where the data will be stored or accessed. Data modeling allows the systems analyst to describe how the data will flow through the business processes.

During the analysis phase, the systems analyst creates logical data models. Entity relationship diagrams (ERD) are used to model the data.

In this Assignment, you will use the case study provided in Week 4 to create entity relationship diagrams that depict how the data flow through this new system.

To prepare:

• Review this week’s resources.
• Search the Library and Internet for information on creating entity relationship diagrams.

By Day 7

Using your use cases as your basis, complete the following:

• Create entity relationship diagrams.
• Explain the relationship between your functional models, process models, and the data models you created in previous weeks.