To successfully launch a new product and achieve subsequent sales results it is essential to carry out thorough, detailed testing of the various prototypes and to identify the best selection. This is a process you simply cannot get away with. Many people think that yes, but it usually ends very badly. Apparently a lot of time and money can be saved by not thinking carefully enough about prototypes, but the resulting losses, such as lost production, lost revenue and consumer complaints are likely to be significant will be significant.