Devaux's Index of Project Performance
Devaux's Index of Project Performance (usually known as the DIPP) is a project management performance metric formulated by Stephen Devaux as part of the total project control (TPC) approach to project and program value analysis. It is an index that integrates the three variables of a project (scope, time and cost) into a single value-based index where:
- Scope is monetized as the value the project is expected to generate if it is completed on a certain date;
- Time is a plus or minus monetary value if the completion is earlier or later than the target date; and
- Cost is the cost estimate-to-complete (Cost ETC) of the project, the monetary units that will be needed for resources to complete the project (i.e., factoring out sunk cost).