3.3.6 Prototype development GapFill

A  scaled down drawingprototypefinal designpartly made model is an early sample or test model of an idea or system. In designing a new product, it is key to satisfy the requirements of  the designerthe company making itthe briefa single user and to meet all the requirements of the  userspotential marketspecificationmanufacturers. New ideas should incorporate  smaller designsnew technologynew gadgetsinnovation although it does not mean that a totally new concept or design must be invented. It is also important that as prototypes are developed, they are tested for  aestheticssizefunctionalityweight to ensure they work as intended.  ViabilityAestheticsComputer modellingFunctionality is a key feature of any product as well to ensure it looks good enough to sell. Once a product has been tested, modified and evaluated a decision is made as to whether the product is fit for purpose and if it will last. Some products are designed to only last a short amount of time and this concept is known as  life expectancylife cycle analysiscommercial viabilityplanned obsolescence.