OK, let' s put the thingy in plain words rather than in projectmanagerese B******T (*)
You have somet fields/column/***** which need to be changed
You found already out the datasets/copybooks/programs that need to be changed
and now.... ???
from a real case
if only a field size is involved
create a test environment
create the changed databases/datasets
change the copybook,
... if the change management software is only basically decent
simply ( SCLM way of doing it ) BUILD the copybook and everything will be reassembled and ready to be tested
You already asked and were given a reply, there is no checklist involved at this point
start doing it
nobody around here knows anything about the applications involved
so any advice on the path to follow might be wrong
field remediation again... what a bull****
are You getting paid by the work being done or the amount of useless paper produced ???
just to give You an escape path I did what You should have already done...
a google search with "field remediation best practices",
but unfortunately ther was only one link related to IT realm,
all the others were all related to soil/site cleanup from human or industrial ****