Do a paragraph on each. Techical, Operational, Economic, Social. Maybe do a sentence outlining theory then a few sentences relating to the individual situation
depends on what for.. if its for the assignment that you sent then you might want to write more than a paragraph. I sent you my documentation and there should be a feasibility study.
but yeah, do a page/paragraph saying what the possible issues are with that feasibility (e.g operational - people dont know how to use the system because its so radically different) and their solutions (e.g to combat this, there would be an online help centre and a call centre.)
make sure you put in the headings so that they know that you know about feasibility.
4 parts that must be covered: Technical, Organisational, Economic, Schedule. Try to write as detailed as possible, according to the given case study or situation from the question.