Below are the description of all the uses of the working document “Cost-Benefit Analysis”:
“Cost-Benefit Analysis” is a tool/technique for the process “Plan quality management”.
The primary benefits of meeting quality requirements include less rework, higher productivity, lower costs, increased stakeholder satisfaction, and increased profitability. A cost-benefit analysis for each quality activity compares the cost of the quality step to the expected benefit.
This definition was found in the PMBOK V5