The inspections are a means of verifying intellectual products by manually examining the developing product, a piece at a time, by small groups of peers to ensure that it is correct and conforms to product specifications and requirements [STRAUSS]. The purpose of inspections is the detection of defects. There are two aspects of inspections to address. One is the inspections occur in the early stages in software life cycle and examine a piece of the developing product at a time. These stages include requirements, design, and coding. The defects in the first stage would be amplified to more defects in design stage and much more defects in coding stage without inspections. Thus earlier detection for defects can make lower cost on software development and well ensure the quality of the software product to delivery. On the other hand, a small group of peers concentrating on one part of the product, can detect more defects than the same number of people working alone. Therefore, this improved effectiveness comes from the thoroughness of the inspection procedures and the synergy achieved by an inspection team.
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