About TSUBAKI MICHIKO
About クオリティマネジメント
About quality assurance
About SPC
About control chart
About process capacity
About index number
About stability
About upper limit
About lower limit
About software
About standard value
About criterion
About knowhow
About 管理はずれ
About Quality control in general
About Statistical quality control
About 品質保証
About 統計的手法
About 統計的プロセス管理
About 管理図
About 工程能力指数