Seven management tools for QC
Seven management tools for QC are used to analyze verbal data, instead of quantitative data，and to discover due for the problem solution. it is often the case that there exists more verbal data rather than quantitative data about facing problems. The seven management tools are applied to organize verbal data and to clarify problems and then lead to the problem solving with the cooperation of all people.
Seven management tools for QC includes: affinity diagram， relationships diagram， tree diagram,matrix chart, arrow diagram, PDPC and matrix data analysis.
When facing unstructured and ambiguous problems， these tools can help organize problems and make it easy to make a plan.
Related terms: seven tools for QC,Task achieving QC story, Verbal data,factor tree diagram,policy tree diagram