The triangle demonstrates how these three variables are linked if one of the variables is changed, the other two must be adjusted to keep the triangle connected. A project management triangle is a project management model. It proposes that managing three restrictions (cost, scope and time) leads to a quality final result. These limitations are interconnected and must be continuously balanced.
When you make a change to a restriction, you need to adjust one or both of the other restrictions to maintain quality. This model is also called an iron triangle, a golden triangle, a projected triangle, and a triple constraint.
