HI,radhesh
i think that your problem is more like a management consulting problem,to implement mdm system is just a way to make your organization run better,to support your business systems. we always follow the ASAP methodology,and also you can refer to the checklists guide at the preparation stage.here is the link:
http://help.sap.com/nwmdm?current=netweaver&show_children=false
by the way you need a service account to log on.
hope it helps.
best regards
Stephen