Market specifications
Target markets and target audiences
Market analysis
Expert appraisal
reliance on the knowledge and skills of an expert in the operation of a product
literature review
consumer reports, newspapers, magazines, encyclopedias, manufacturers information, etc to conduct research.
performance test
testing and evaluating a product under specific conditions
user research
obtaining users responses through questionnaires/surveys and interviews
user trial
observation of people using a product and collection of comments from people who have a used product
Design specifications