Three keys to successful design projects

摘要

Successful projects require that teams carefully manage the specifications for three interdependent variables. These variables are product availability (time), product functionality (capability), and product cost in production (cost). Any one of these three could be chosen as the subordinates variable, depending upon factors such as customer requirements, the state of the art, or the competition. If absolutely necessary, the two subordinate variables could be changed to accommodate any problems that occur with achieving the key variable.