PID

When I read your question I had a bit of a blank about what you meant by 'PID', so I Googled it all the references were for pelvic inflamatory disease - which is not on the current syllabus. Further refinement of my Google query came up with project initiation document: of course. A full project initiation document is a major piece of work and I don't see how you could be asked to produce a whole one. However, you might be expected to explain to the board the purpose of a PID and its usual content/headings. You might also be required to produce, in full, one section - for example the business case or suggestions for the composition of the project team etc.

I think a model is too strict a concept, but the typical contents of a PID is fairly standardised, though order of paragraphs has some flexibility.