It is known as a fishbone diagram because of its shape, similar to the side view of a fish skeleton. It is also known as Cause and Effect diagram.Fish bone diagrams can reveal key relationships among various variables, and the possible causes provide additional insight into process behaviour.
The user can create and download Ishikawa diagram from this website.
A Pareto chart is a bar graph. The heights of the bars represent frequency.The bars are arranged with tallest bars on the left and the shortest to the right. Using 80-20 law the chart depicts , ‘the vital few and trivial many’.
The user can create and download Pareto Chart from this website.
X-bar chart: The mean or average change in process over time from subgroup values. The control limits on the X-Bar brings the sample’s mean and center into consideration.
R-chart chart: The range of the process over the time from subgroups values. This monitors the spread of the process over the time.
Use X Bar R Control Charts When:
Even very stable process may have some minor variations, which will cause the process instability. X bar R chart will help to identify the process variation over the time
The user can create and download X Bar R Chart from this website.