QC 7 TOOLS:

Purpose of using Quality Tools
1．Data collection
2．Summarizing data
3．Data presentation
4．Discovering Problem
5．Understanding problem
6．Finding and recovering the cause of the problem
7．Assisting with the getting of priorities
8．Selecting problem for improvement
9．Identifying relationships
10．Structuring ideas
11．Performance measurement
12．Capability assessment
13．Planning
14．Implementing actions
15．Monitoring and maintaining control

Types of old Quality Tools
1．Checklist
2．Flow Chart
3．Histogram
4．Pareto Analysis
5．Cause and Effect Analysis
6．Brainstorming
7．Mistake Proofing

Types of new 7 Quality Tools
①　Relation diagram
②　Affinity diagram
③　Tree diagram
④　Matrix diagram
⑤　Variable analysis
⑥　PDPC diagram (process decision program chart)
⑦　Arrow diagram and network diagram