Assure the successful launch of product by discovering bugs and design flaws, before users get discouraged, before shareholders loose their cool and before employees get bogged down;
Help the work of development staff, so the development team can devote its time to build up product;
Promote continual improvement;
Provide documentation required by ISO, CMM, FDA, FAA, other regulatory agencies and requested by customers;
Save money by discovering defects 'early' in the design process, before failures occur in production, or in the field; Save the reputation of company by discovering bugs and design flaws;
Before bugs and design flaws damage the reputation of company.