The iron triangle is a project management axiom where there are three key constraints on a project1: - scope the work that needs to be completed for a project - time to get done (the deadline) - resources the people and tools to complete the project

You can’t change one without changing the others.

1. Stanier, J. Parkinson’s Law: It’s Real, So Use It. https://theengineeringmanager.substack.com/p/parkinsons-law-its-real-so-use-it (2024).