[jacalata]

No idea how your actual finance side works, but the obvious way to solve this seems to be to offer a reward to the first student to enter assignment data for each class. A couple of checks would be necessary, i.e, reward is only valid after two other students confirm the data, to prevent students just adding junk. Have you considered something like this? Market it like 'all your assignment dates ready for you, or get a red bull on us!'

[tedmiston]

Guptaneil and etrinh, I appreciate the thoughtful feedback.

Regarding a reward-based or gamification system, this is an excellent idea. Of course, it would not necessarily be monetary. To give a specific example, Dropbox has become very good at gamifying their recruitment by posing their challenges for expanding storage space. A similar adoption here could be interesting. I plan to follow Tabule's development and adoption curiously.