Every schedule change tells a story, and if you're not recording it, you're losing that story.

In construction programme management, a single relationship change can shift your critical path by weeks. Remove one link, and the whole chain reacts.

A single change can also bring the schedule from order to chaos and the other way around.

That's why a change log matters. Not just for the current week, but as a master log covering the full project life. It captures what changed, why, and when, so six months later you can look back and actually understand how the programme evolved, instead of just comparing against a static baseline that no longer reflects reality.

Modern contracts need to include a clause on how schedule changes should be managed, reported, discussed and justified.