It’s not usually platform migration (I have done a few of those). It is both installation of new systems (from old legacy systems) and upgrades of extant systems.
Wow. Nice to talk to a kindred IT soul.
Looked at your frpage, thought you might like this from the semi-wayback machine:
http://www.freerepublic.com/focus/chat/2070297/posts?page=1
A word about Taglines, from heathen Chode.