I got a pertinent question on this so am sharing the answer more widely: if you have already submitted and as a result of this post you are having doubts do contact me - you can resubmit.
Q2s are quite tricky! In all the TMAs they will relate to the sort of process that you might go through in a real project, so the answers need to hang together (the collaborative sections, the Q3s, will "slot in" to this process as well).
The "investigation" you are being asked to perform here is in effect this process, the target of the investigation is the website project and the overall goal of your answer is to define the blastoff phase (for TMA01à of the project.
Hope this helps