What are the different types of design reviews in product development?

Common design reviews include: Preliminary Design Review (PDR) evaluating concepts and requirements, Critical Design Review (CDR) approving detailed design for prototyping, Design for Manufacturing Review (DFMR) assessing manufacturability with manufacturing input, Failure Mode and Effects Analysis (DFMEA) identifying potential failures, and Production Readiness Review (PRR) confirming readiness for volume production. Each gate ensures design maturity before progressing to the next phase.