Check sheet

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Check sheet - short version

(1) A simple data recording device. The check sheet is custom designed by the user, which allows him or her to readily interpret the results. The check sheet is one of the "seven tools of quality" (see listing). Check sheets are often confused with checklists (see listing).

(2) Data-gathering tools that can be used in forming histograms. The check sheets can be either tabular or schematic. OR A tool for ensuring all important steps or actions in an operation have been taken. Checklists contain items important or relevant to an issue or situation.

(3) The visual representation of the number of times an activity, event, or process occurred for a specified time period.

Check sheet - long version

The check sheet is a simple document that is used for collecting data in real-time and at the location where the data is generated. The document is typically a blank form that is designed for the quick, easy, and efficient recording of the desired information, which can be either quantitative or qualitative. When the information is quantitative, the checksheet is sometimes called a tally sheet.

A defining characteristic of a checksheet is that data is recorded by making marks ("checks") on it. A typical checksheet is divided into regions, and marks made in different regions have different significance. Data is read by observing the location and number of marks on the sheet. 5 Basic types of Check Sheets:

Classification: A trait such as a defect or failure mode must be classified into a category.
Location: The physical location of a trait is indicated on a picture of a part or item being evaluated.
Frequency: The presence or absence of a trait or combination of traits is indicated. Also number of occurrences of a trait on a part can be indicated.
Measurement Scale: A measurement scale is divided into intervals, and measurements are indicated by checking an appropriate interval.
Check List: The items to be performed for a task are listed so that, as each is accomplished, it can be indicated as having been completed.

An example of a simple quality control checksheetThe check sheet is one of the seven basic tools of quality control, which include the histogram, Pareto chart, check sheet, control chart, cause-and-effect diagram, flowchart, and scatter diagram.


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