an iterative decision making activity, to produce plans by which resources are converted, preferably optimally with due consideration for environment into systems and devices(products) to meet human needs.
I think the design process is making an idea, testing the idea, refining to help support the idea and repeating it in a spiral motion until actually coming to the conclusion to see if the idea is...
The application of scientific and mathematical principles to practical ends such as the design, manufacture, and operation of efficient and economical structures, machines, processes, and systems....