7 Quality Tools Hospital Authority（7质量工具医院管理局）.pdf

7 Quality Tools Cause-Effect Diagrams Flow Charts The 7 Quality Tools for Process Improvements Pareto Chart Where did the Basic Seven come from? Kaoru Ishikawa • Known for “Democratizing Statistics” • The Basic Seven Tools made statistical analysis less complicated for the average person • Good Visual Aids make statistical and quality control more comprehendible. What Is a Flowchart? A diagram that uses graphic symbols to depict the nature and flow of the steps in a process. Benefits of Using Flowcharts • Promote process understanding • Provide tool for training • Identify problem areas and improvement opportunities Draw a flowchart for whatever you do. Until you do, you do not know what you are doing, you just have a job.” -- Dr. W. Edwards Deming. Keys to Success • Start with the big picture • Observe the current process • Record process steps • Arrange the sequence of steps • Draw the Flowchart What Is a Cause and Effect Diagram? A graphic tool that helps identify, sort, and display possible causes of a problem or quality characteristic. Benefits of Using a Cause-and-Effect Diagram • Helps determine root causes • Encourages group participation • Uses an orderly, easy-to-read format • Indicates possible causes of variation • Increases process knowledge • Identifies areas for collecting data Data Collection • Where • What • Who • How Shifts Shifts √√√ √√√√ √ √