LabMaster's second major function is to take attendance. Instead of relying on a lab leader to call names and potentially make mistakes, LabMaster makes a record of everyone who uses the Student Toolbar. Since it knows who's logged in, which computer each person is using, and what time it is, it's easy to build an attendance sheet for a particular lab.
A lab leader can visit a simple website online, pick a lab session, and get an alphabetical list of lab attendees. This part of the system is not part particularly attractive, but functions perfectly. It could be easily expanded to add information like how many questions a student asked during a lab or what percentage of her time was spent waiting for help.