Contract performance phases
Engineering contracts - Appendix 2: Technical provisions (part 2)

General comment:

The importance of design activity is sometimes underestimated, even though 70% to 90% of the costs of a complex Product are the consequence of decisions taken in the early phases of its specification and design. Faced with a sharp increase in the complexity of the Products (especially systems) to be developed, it is essential to devote the effort and attention that the specification phases (see appendix 2, part 1) and the design phase (see appendix 2, part 2, part 3) require. ) and design merit by formalizing and controlling :

• expression and analysis of requirements (mission, functions, performance, etc.)...