CS:4/53901 Software Engineering Spring 2009 Assignment 3

Charts - Use Cases and Scenarios

Create use cases for the Chart project.

Charts

A user wants to generate charts of different types and formats. The type of charts include bar charts and pie charts. The input data will be in XML or CSV (Comma-Separated Values) formats. There are also many output formats of the charts, including SVG (Scalable Vector Graphics) and jpeg.

As an example, a user may request to create a bar chart in SVG format from their XML data.

For efficiency reasons, a user may request multiple charts and multiple output formats in a single, e.g., a request for both a bar chart and a pie chart of the same data. In this case, it would allow the input data to be loaded only once.

Take into account:

Your previous designs

Any new ideas that you get when working with these new diagrams

Feedback on your previous design

Some things to consider:

You can have more than one use case diagram

You will definitely have multiple scenarios

Some technical details:

File Format the diagrams must be in svg (preferred), or in jpeg, or png. The use cases must be in text, in files with .txt extension.

Tool You can use whatever tool you want to draw the diagrams, e.g., Visio, gliffy, etc. You can even draw them on paper and scan them into a jpeg or png image. Neatness does not count, good design does. Even if you use a tool, consider working on paper first.

Readme Use the Readme file to explain what design decisions, changes, etc. that you made.