What is design to cost?
Serious consideration of costs at all levels through all phases of a project
Original budgets should have included involvement from design engineers
Relate budget flow down through detailed WBS
Delegate responsibility for budgets consistent with the WBS to lowest level of design team
Every one should know detailed cost targets for their area and overall cost target for the instrument
Design trades should always include costs
Raise problems early, trade across subsystems, simplify designs early