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An Attribute Gage study is a study that studies the bias and repeatability of an attribute measurement system. It is useful to decide which sources are responsible for the variation of the measurement data. The best one of these is a go/no go gage. This gage basically tells you if the part passes or it fails. There are only two likely outcomes. Other attribute measurement systems can have many categories such as very good, good, poor and very poor What is an attribute agreement analysis? Attribute Agreement Analysis (or Attribute MSA) is one of the tools within MSA, used to estimate your measurement system when attribute (qualitative) measurements are involved. With this we can confirm that measurement error is at an acceptable level before conducting data analysis Attribute Agreement Analysis is the type of Measurement System Analysis (MSA) that is used to measure how well an attribute (discrete) measurement system is working. Gage R&R is the type of Measurement System Analysis (MSA) that is used to measure how well a variable (continuous) measurement system is working. The Attribute Agreement Analysis study can be set up in a similar way as a regular Gauge R&R study. A number of parts are selected from the process, and are gage by two or more operators. This doesn’t just relate to Pass/Fail type assessments, such as with Go/No-Go type gauges, but it can also be used to test the reliability of operators where they make assessment on a rating scale. When to Work with Attribute Agreement Analysis ? Work with Attribute Agreement Analysis if you aim at doing a Gage R&R (MSA) for a test/measurement that does NOT lead to results you could gage with a measurement instrument. we want it if the results are qualitative. Examples: Visual quality control of parts. Examination of whether the cleaning was done well. Check whether a document is accessible. To Run the Analysis What is our objective to find out? Accuracy or Precision? Reproducibility or Repeatability? To Calculate Accuracy Understand how well the measurement system comes to the same results as per the “standard”. Calculate % R & R Shows how exactly the different appraisers agree about results and how precisely one and the same appraiser comes to the same results when measuring multiple times. Total % R&R defines the level of agreement within/ between appraisers and a standard Total %R&R should be 100% (when the study conditions are different from reality every result below 100% will lead to a measurement system not worth trusting) If the Total %R&R is less than 100% examine the results to see if this is a problem of repeatability, reproducibility or both