Design Reviews are more powerful than Control Reviews!
The earlier a product design is reviewed, the better is the
chance that omissions and mistakes will be caught before they
become expensive. Design Reviews are reviews of the design,
not reviews of the as-built model or prototype or product.
Control reviews examine as-built models, prototypes, and products
to verify that they conform to specification - or not. A Design
Review is proactive. A Control Review is reactive. In short,
a Design Review is a review of design or pending design and
not a review of as-built physical or compiled product.