In the New Product Development (NPD) process, 90% of the cost of a product is fixed by the end of the design phase, By this time in the process the direct material, direct labor and product specific capital equipment costs are set in place, whether we fully realize it or not. The ability to control cost is greatest during the concept development stage. Getting manufacturing and suppliers involved early and clearly understanding customer needs from the start are key to managing product costs.
Ways to implement such approach involves careful selection and early collaboration with suppliers for help in making design tradeoffs for customer requirements, functionality, and cost. What is needed is great communication across the design and supplier network that is responsive to customer requests and priority requirements. This effort will reap great dividends for a more salable and profitable product.
Of course, it is important to first probe deeply into customer requests. Is a functional capability a must have, need to have or nice to have? Clarifying and prioritizing of customer requirements provides design engineers with the maximum range of options, and allows them to make informed trade off decisions when handling competing performance and cost goals in the design process. Finally, be sure to evaluate usability to deliver a user-centric design, which is critical for total design success.
With these practices of understanding customer needs and usability and by collaborating with the supplier base during the concept development phase, designers will be in the best position to deliver an optimal design – and to maximize their impact on 90% of product cost from the start.
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