Third-party product and process certification (TPPPC) linking the design and production of product systems with testing and factory control now very much forms the strong and flexible backbone of product assurance for specialist and bespoke primary door manufacturing. TPPPC assurance underpins fitness-for-purpose. It provides far more than is possible with just initial type testing, which limits evaluation to only the basics of generic examples before placing on the product on the market, and without further considering application test developments for the market.
