From LearningMeasure.com
QC Tools - Histograms 
This is another in a series of eight courses on the seven quality tools defined by
Ishikawa. The histogram is a tool that is used to graphically express the distribution of data among various categories. This allows one to graphically express the mean and spread of a set of data, and the number of modes.
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QC Tools - Check Sheets 
A check sheet is a tool to collect data associated with the process. It is one of the seven basic quality control tools defined by
Ishikawa. The data collected from a check sheet is often used as input into other quality tools. This is one of eight courses on the subject.
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QC Tools - Flowcharts and Process Maps 
The purpose of this course is to introduce the flowchart, one of
Ishikawa's seven basic quality tools. This is one of a series of eight courses on the quality tools. The flowchart is used to document processes graphically. They are used to help identify where to make improvements in a process, or in the design of a new process.
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Quality Control Tools I 
This course provides an overview of the seven quality control tools that are called out in the ASQ Certified Calibration Technician body of knowledge. This is the first in an eight course series on the seven basic tools of quality as defined by
Kaoru Ishikawa.
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