IT Change Control Process 18 August 2005 [email_address]
Why Does UD Require IT Change Controls To maintain the IT systems in a Validated State. To provide proof to our customers/suppliers/auditors that UD and IT --WORK TOGETHER-- to a formal process. To allow UD management to review and be informed of interdepartmental workflow and requests for change. To minimise cost of change by clearly specifying requirements prior to implementation and installation (cost of ownership).
Cost/Effort Of A Change Request (from Boehm, Barry W. Software Engineering Economics . Englewood Cliffs, NJ: Prentice-Hall, 1981) 0 10 20 30 40 50 60 70 Requirements Design Code Development Testing Acceptance Testing Operation Development Phase Cost/Effort to Correct a Problem