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The project triangle perspective

Knowledge about and understanding the concept as a basis for understanding different aspects of project success/failure.

The project triangle illustrates three constraints or steering parameters in a project.

These constraints (Time and cost limits, and scope) are also a way of illustrating aspects of project efficiency, i.e. the project goal has to be obtained within these constraints. The three constraints affect each other, illustrated in the example below.

Example: A project construction project

  • If the time constraint is exceeded, the costs and/or resources will usually also be exceeded
  • If the scope constraints are exceeded, the costs and/or resources, and time, will usually also be exceeded
  • If the cost constraint is exceeded, it can imply that the project will be finished earlier, or that more can be included in the scope.
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Plan for Project Success: Project Planning and Management:

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