Planning for Acuracy and Efficiency: Successful planning of accurate and efficient manufacturing requires: Detailed design spec criteria, facilitating testing throughout design process, Evaluation of manufacturing accuracy required and possible need for outsourcing, clear production schedule with deadlines and appropriate QC inspections, pre-production QA procedures to ensure accuracy - CAD simulations, a variety of modelling techniques and cost calcs, working drawings with tolerance, Client feedback, surveys, peer reviews, focus groups, production of templates, jigs and fixtures, non-destructive testing, and destructive testing. Prototype production accuracy QC checks used in conjunction with client feedback - Visual aesthetic checks, dimension and machine tool checks using verniers, micrometres, etc. checks of component fit and quality of finish.