From 10 minutes of my experience with the software. (a) Installation was simple, (b) no way to restrict the users, at present users can discontinue the exam and then take it again (b)need to have a option when the user log off or close the browser, the exam should end ---- Did try in search for the code, but was not able to see it, any url for the code
Yes, I just went through the system and a similar product VirtualX. VirtualX Seems to be having around 12 question types, different types of results/reports with Chart representation. But Kaldin supports only 2-3 types I hope. But, both the system treats exams differently. Also, I don't know whether this product supports any unknown OS mostly as I could see most downloads for it.
This is not open source unless you provide the source !