Murat AkkalenderProcess Capability with Minitab’s “Snapshot” OptionSince I think it is not very well known, I would like to write about the “snapshot” option in Minitab’s process capability function in this…3 min read·Jan 23, 2022----
Murat AkkalenderCp, Cpk, Pp, Ppk; What Are Their Differences?Cp, Cpk, Pp and Ppk are indices of process capability. Unfortunately, there is no universal standard for the definitions of these indices…2 min read·Jan 10, 2022----
Murat AkkalenderWhere Did This 1,5 Shift Come From?If you look at the Yield % in the table where the Z value is 3, you might be a little bit confused. The Yield % stated in the table is…2 min read·Jan 2, 2022----
Murat AkkalenderZ Values and Six SigmaIt is possible to determine the distance from our mean to the USL (or ASL). If we consider this distance in units of StDev, we can also…1 min read·Dec 26, 2021----
Murat AkkalenderTemel Proses Yeterliliği Nedir?Altı Sigma tamamıyla müşteriyle ilgilidir ve müşteri isteklerini müşterinin sesi (voice of the customer — VOC) olarak adlandırırız. Diğer…2 min read·Dec 19, 2021----
Murat AkkalenderSimple Process Yield MetricsWe started to monitor our processes with control charts and react as needed. So what to do now? Now we have to calculate our process…1 min read·Dec 11, 2021----
Murat AkkalenderWhy SPC Training Should be Different for Managers and Operators?Training is essential to the success of your control charts implementation. However, you should pay attention to the difference between…2 min read·Nov 28, 2021----
Murat AkkalenderAverage Run LengthAs in all hypothesis tests, there are risks of Type I error (over-control, false alarm) and Type II error (classification as “under…1 min read·Nov 21, 2021----
Murat AkkalenderCUSUM & EWMA ChartsThere are situations where small changes in the process mean can cause problems. Shewhart control charts may not be sensitive enough to…1 min read·Nov 21, 2021----
Murat AkkalenderStoplight ChartsWith stoplight charts, process location and variation can be controlled using a single chart. In this approach, the target area is…1 min read·Nov 21, 2021----
