To create and submit diagramming exercises one needs access to a drawing tool capable of making a GIF file.
For example, you might choose a tool such as Corel Draw, Visio, or a freeware product. Later in this module, the details of exercise submission are outlined.
If you do not have a drawing tool capable of creating a GIF, please click on one of the links below.

If you use an (OO) object-oriented modeling computer-assisted software engineering (CASE) tool, you will still have to be able to save your diagram as a GIF to submit it to the tutors.
If you do not have a CASE tool, you might consider clicking on one of the links below

However, a CASE tool is not required for this course. In most cases a drawing tool (such as MS Word draw feature) will suffice.
The course will not provide support for any drawing tool or CASE tools, and instructions will not be provided on how to use any of these tools.