Need a database designed

i need a database made which is similar to a blackboard for a university module.
requirements:
login page
the module leader has transparency of everything
supervisors for the module are allocated and have allocation slots for students which reduce in number as a student is accepted by that supervisor
students can upload work
supervisors can exchange marks between themselves for similar work
supervisors and students can communicate from the same area like a private message?
announcements from your specified supervisor
HOWEVER there are a few add ons i would like to talk about once i receive some contact regarding this job