Very often the initial design concept has to undergo a feasibility analysis before you can make a decision to commit further resources. Some of the questions that can be answered during a feasibility analysis are...
Q: Will the proposed design perform as expected?
Q: Is this design able to fulfill the objectives and meet all the requirements outlined in the product specifications?
Q: Can this be manufactured and assembled in such a way as to ensure it has a high degree of reliability and still be made at a reasonable cost?
Q: Are you using the right materials in your design?
Q: Is there a more cost effective way to manufacture this product?
With a careful analysis of the various systems and sub-systems these and other questions can be addressed during a feasibility study to ensure that your product design will meet or exceed a given performance standard.