Nowadays, the Project Management provides us some instruments to keep under control the factors that can affect our project. But most of all, someone could underestimate or totally forget the relationship between them.
The Project Management Triangle (called also Triple Constraint or the Iron Triangle) is a model that show the relationship existing between three constraints:
Just like in a triangle, where you cannot vary one side without varying the other two, you cannot vary one of the above factors, without varying the other two:
Centre to the concept of the IronTriangle is the mutual dependency between the three constraints.
A further refinement of the constraints separates product "quality" or "performance" from scope, and turns quality into a fourth constraint, most of the time placed at the center of the triangle.
This simple framework enable project managers to evaluate and balance the competing demands of cost, time and quality within their projects and to keep in mind the consequences of one simple action on one of these elements.
The real value of the project triangle is to show the complexity that is present in any project.
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