The average construction project runs across a dozen disconnected spreadsheets — and that's exactly where mistakes happen. A PMIS (Project Management Information System) fixes that. It's one place where every piece of project info lives and connects: RFIs, variations, drawings, costs, correspondence, approvals — all in one system instead of scattered across files nobody can reconcile. The key thing spreadsheets can never do: a spreadsheet records what you did, a PMIS controls how it's done. Raise a variation and your cost-to-complete updates automatically — because in construction everything is connected. And with AI coming, it's about to be non-negotiable. AI is only as good as the context you hand it. A PMIS is that context — your whole project history in structured, connected data.