Once the project baseline setting has been validated, use a set of processes to manage integrated change control for the project. With the plan set and scope frozen, your documented processes for dealing with change are essential for project stability and ultimate success. Even for small projects, written processes will enhance your chances of success.
Potential project changes originate from many sources:
Internal (plan variance analysis, performance reporting, project reviews, risk identification, team-generated ideas, opportunities, loss of staff)
External (change requests, regulatory changes, modified standards, market research, new technology, meddling sponsors, natural disasters)
For all project changes, ...