Title: Instructor's Perspective - Module 5
Course: CIS2321 Information Systems > Section: Module 5 - Data and Process Modeling

Module 5: Data and Process Modeling

Data and process modeling presents graphical models of how the system
transforms data into usable information. The product of this modeling is a logical
model that can meet the needs of the users and support the business operations.

Data flow diagrams (DFDs) show the movement and conversion of data in the
information system. The data dictionary is the documentation device for
structured analysis. Consolidating documentation in one location increases the
systems accuracy and consistency.

Structured analysis tools are used to develop a logical model during systems
analysis, and a physical model during the systems design. Many analysts use a
four-model approach, which involves a physical model of the current system, a
logical model of the current system, a logical model of the new system, and a
physical model of the new system.

Attachments

- Mod5_InstructorPerspective.pdf