To start with, you need to know what an "Interactive Digital Multimedia Project" is.
What is an IDMP? – slides for you to use
You'll be asked to build up a document explaining what an IDMP is and looking at some examples.
What multimedia do these examples include? How interactive are they?
I'm not sure that those examples are properly interactive. They don't all allow multiple routes through and for the user to make proper choices.
They're mainly linear.
The interactive element is the hardest to pin down. The user really needs to be able to properly control which route to take rather than be sent down a single route. This means that a product is non-linear.
Now take a look at some of these examples.
Those are probably better in terms of interactive content, although they aren't all perfect by any means. The computing museum is probably the best example. I like the way you can explore and find out more about exhibits.
Here's a useful Google search to start looking for other examples.
> go on to Step 2 – setting up the IDMP