Seven management and planning tools
新QC七つ道具
1.
affinity diagram
（
KJ method
）
2.
interrelationship diagram
（
relations diagram
）
3.
tree diagram
4.
prioritization matrix
（
matrix diagram
）
5.
matrix diagram
or
quality table
（
matrix data analysis
）
6.
process decision program chart
7.
activity network diagram
（
arrow diagram
）
Seven basic tools of quality
Seven management and planning tools - Wikipedia