The design of subsystems, configuration items, and major elements of the system represents the allocated baseline. |
Preliminary System Design covers developing design requirements for subsystems and major elements of the system, preparing detailed specifications, completing the functional analysis and the allocation of requirements to the subsystem level and below, using design technologies and analytical models, making trade-off studies, and holding design reviews.
Design criteria constitute a set of design-to requirements that can be expressed both in quantitative and qualitative terms. These represent bounds within which the designer must operate when evolving through the sequence of synthesis, analysis, and evaluation.
The specifications and established goals lead to the identification of certain categories of engineering expertise necessary for the design and development of the system in question. The quantity and variety of engineering expertise will depend on the nature, complexity, and size of the project.
The successful completion of design activities is dependent on the proper application of selected design methods and practices. This, in turn, is strongly influenced by the technology and tools available to and used by the design engineers.
Two things to remember during the early design phase: Keep manaufacturing in mind and include usability factors. |
