The Inspection Method is a proven technique for finding and removing defects in specifications, software, documentation, and other deliverables as early as possible. Inspection applies the concepts of statistical process control to produce high-quality deliverables at minimum cost. Inspections have been used at IBM, Bell-Northern Research, Tandem, and many other corporations to find defects faster, and hence at lower cost. An inspector is a person who reads a document looking for defects.
Inspections also involve other people.
Inspectors prepare by reading the low-level and noting all the defects found. The moderator is responsible for arranging the defect logging meeting. The moderator tallies up the statistics from the meeting, and gives them to Quality Assurance for tracking and analysis. Note that statistical information is gathered for later analysis to constantly improve the efficiency of the inspections process itself. A defect is NOT a matter of opinion.