What is MSA(Measurement system analysis)?

MSA is a statistical tool that is used to determine whether the system is capable or not?

MSA is a comprehensive evaluation of a measurement process which usually involves 

an experiment designed explicitly to classify the variance components in that measurement.

MSA - Analysis of variation present in measurement system.

When to do MSA?

1.New Product development

2.Change in Process

3.Change in measurement method

Terms used in MSA:

1.Discrimination

2.Accuracy

3. Repeatability

4. Reproducibility

5.Linearity

6.Bias

7.Stability

Why MSA is required?

1.To understand the impact of measurement system on the operations.

2. We can get a good quality product

3.For measurements to be effective, they must be accurate and precise.

Types of MSA study:

1.Variable GR&R study

2.Attribute GR&R study

Type of Data:

1.Attribute - Good/Bad ,Ok/Not Ok

2.Variable - Measured data Ex-10.2 mm

Steps in conducting MSA study:

                  1.Select the measurement system for which MSA to be conducted
2.Check that the instrument is calibrated and least count of the instrument in 1/10th of the tolerance.
3.Take five samples 
4.Select three operators
5.Prepare a chart for all the readings
6.Enter the readings in minitab for calculating R&R