The testing is worthless unless any issues are solved.  At this stage, the knowledge gained through the testing process enables us to improve the design and prepare for manufacture.  If the changes are major, there may need to be a return to development and testing before proceeding onwards.

The product design can now be refined to the final configuration.  The changes may be minor, like different size fasteners, or major, like increasing the strength of the components.  Upon completion, the customer will of course have the final say before sign off.  The design and production drawings can then be finalized and readied for release.

Jeffery Neal Engineering prides itself on designing simple, robust, and elegant products.  Our aim is to design products that are useful and reliable, as well as safe and cosmetically pleasing.  They must serve the customers' requirements while keeping within budget constraints.  The end goal is of course a marketable and profitable product.