Illustrate the use of the various design tools and models.

For this assignment, you will use Visio Software Application to develop the design employing the following computer-aided software engineering (CASE) modeling tools:

Use case
Functional decomposition diagram
Entity-relationship (E-R) diagram, data flow diagram (DF), or class diagram
Sequence diagram
Mock-up or storyboard of the user interface screens
The project deliverables are as follows:

Update the System Requirements, Design, and Implementation Specification title page with new date.
System or Application Design
Develop a high-level use case to represent the application as a whole.
Develop a functional decomposition diagram to show all of the functions that the system or application will support.
Develop an E-R diagram, class diagram, or a data flow diagram that effectively represents the data that are required for your application or system.
Develop a sequence diagram to represent the timing of various activities within the application or system.
Develop a mock-up or storyboard for the high-level interface screens.