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Why is the task being done?
To In order to make computerized note-taking feasible, the user must be able to easily record the diagrams that are being shown on slides or drawn on the chalkboard. Often the diagrams convey information (relationships, physical structure, etc) that cannot easily be recorded purely textually.
What does the user need to know or have before doing the task?
In traditional paper-based note-taking, the The user needs to have an a rough idea of the scale of the diagram and the amount of space and detail that will be necessary. For a computer-based note taking system, the user The user also needs to understand what diagramming tools are available (e.g. shapes, drawing tools, resizing and moving capabilities), otherwise it may not be possible for him/her to draw particular types of diagrams.
Where is the task performed?
Diagramming will generally take place during class on a laptop. The user will be sitting down, and will likely have limited desk space around his/her computer. It is possible that a user may retroactively add diagrams to notes after the lecture is over, but this is much less likely.
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What can go wrong?
Some common exceptions might include the user accidentally drawing incorrect shapes, or the size/shape of the desired diagram changing
(e.g. as the lecturer expands or erases things on the chalkboard).
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