What is Program Change Management?
At program level, change management means two linked things: controlling changes to program scope, roadmap, and benefits (the governance discipline), and organizational change management — preparing people and operations to adopt what the program delivers. Programs fail at the second more often than the first: capability delivered, adoption declined.
The program layer assesses every significant change against the benefits case, not just cost and schedule — a change that's cheap and fast but erodes the benefit is a bad change wearing a good disguise.
Worked example
A hospital program's new records system is on time — and the physicians' adoption forecast is collapsing. The program adds a change-management component: clinical champions per department, workflow redesign with (not for) the nurses, and go-live support that doubles staffing for two weeks. It costs $2M against a benefits case worth $30M — the cheapest insurance in the program, and the difference between "installed" and "used."