We are now back from holidays and ready to continue our project.
To continue our project as planned with usability testing of Inkscape, we would need a goal for our testing. What part of the software should we test, some certain set of tools or some certain part of the UI? Also what is it that we are trying to find out? Because of complexity of Inkscape a clear goal is necessary for this kind of test to be successful.
Alternatively, if there isn't anything that you need to have tested, we are prepared to drop usability testing to take on some other task, as long as it falls under the topic of usability as required by our project. We still have about 170 hours per student to use on this project, so if there's any usability related issues that we might be able to help with, let us know.