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How do you choose the right problem-solving method?
For each type of problem, there is a suitable approach to solving it so that the effort is proportional to the challenge. The different approaches are not in competition with each other, but complement each other....
- Data Analysis
How do you analyse a data table?
Often, when we want to understand how a process works, we are faced with a table of data like the one below. In this example, we want to see what the...
- Data Analysis
Outlier testing
When analysing a series of data, we are sometimes confronted with values that do not appear to be part of the normal distribution of the data....
- Data Analysis
Does the SPC still have a place in our workshops?
For over forty years, SPC has been an integral part of the production environment. It is the method used by manufacturers to monitor their manufacturing processes,...
- SPC
Inbound inspection: how can it be optimised?
An incoming inspection plan is used to decide whether to accept a batch on the basis of samples taken from the batch. Several types of sampling are taken into account in order to...
- IQC
5 Reasons for introducing sampling controls
Quality control is crucial to guaranteeing customer satisfaction and maintaining a solid reputation. Find out why sampling is an essential method for optimising your production processes...
- IQC
How to calculate Cp, Pp, Ppk
In this article we will look at how to calculate the different capability indices, in particular Cp, Pp and Ppk. To fully appreciate the capability of a process, the notion of...
- Data Analysis
- SPC
Parametric and non-parametric statistical tests
Before going into the details of parametric and non-parametric tests, let's recall how a statistical test works. Ellistat's Data Analysis module enables you to perform these tests. A statistical test works...
- Data Analysis
Normality tests
To test normality, there are several tests that can be used to validate or invalidate the hypothesis that the distribution of coins follows a normal distribution. The tests most commonly used are...
- Data Analysis
What is the R&R pledge?
The R&R guarantee is used to qualify a measurement process. This means checking that the variability of the measurement process is compatible with the variability of the quantity to be measured. It is...
- Data Analysis
Problem solving
When faced with a problem, you need to be able to identify what type of problem it is. This enables you to adapt the right problem-solving method. It is...
- Data Analysis
SPC: What's it for?
SPC or MSP? SPC (Statistical Process Control) is a quality control method used to continuously monitor the quality of the production process.
- SPC