Differences and Similarities of Single and Multiple Product Cost Control
Turré, Gilles
Consultant

The facts The main differences between Investment and Production projects are : - The relative importance of the recurrent and non recurrent expenses, - The relative importance of the WBS and PBS - The existence of a double cost control (the car, its plant) in mass production projects - The different position of the contractor / owner relation - The different phases of the project The interpretation Many similarities between Investment and Production projects remain : - Need of a sight on both capital and operation expenditures - Control needs both WBS and PBS, and without confusion between them. - Similarities in the sense of the phases of the project - The Fact that, behind every investment project is a production project The differences are not really differences between Production and Investment projects, but differences between the points of view. In fact, the project seen by a contractor is only a part of the investment project (including the Owner opportunity studies), and the investment project is only a part of a production project involving the whole lifecycle of the product and its production means.