I think this is an interesting project –> the objective should be: do basic research on a real problem!
things you may consider:
from "ease of use" –> "low threshold, high ceiling"
analyze the Help system (you being a learner) of a widely used system such as MS Word and analyze what is good / bad about it
from class:
the lecture on April 4 should be relevant to your project
passive help (you ask for help in whatever form) –> actve help (the system analyzes your work product and volunteers some help); this is one of the objectives of "critiquing system" which we discussed on 2/5 in class)!