[algyptalian]

ok so i have a set of data that i need to create an EER model for. I have to include the entity types, the relationship types, the multiplicity constraints, and the functional dependencies.

Attached is the data that i have to use for the EER, and below it is the solution i have come up with so far. But looking at it, it doesnt look too right, im not sure why, i just think im using display in the wrong context. And im confussed about the functional dependencies. I started off with something like:

1) {http link -> webpage}
2) {http link, webpage -> graphics}
3) {http link -> courseware}
4) {http link, webpage, graphics -> display}

1) The http link is required to load the webpage. If you dont have the http link, you cannot access the webpage
2) The http link and webpage are required to display the graphics. If you dont have the http link and the webpage, you will have nothing to display the graphics
3) the http link is required to get the courseware. If you dont have the http link, you will not be able to access the courseware
...

but im sure this is all wrong, so if you could point me in the right direction it would be a big help