Types of Control Charts
The control chart is a graph used to study how a process changes over time. Data are plotted in time order. A control chart always has a central line for the average, an upper line for the upper control limit and a lower line for the lower control limit.
The check sheet is a form (document) used to collect data in real time at the location where the data is generated. The data it captures can be quantitative or qualitative. When the information is quantitative, the check sheet is sometimes called a tally sheet. The check sheet is one of the so-called Seven Basic Tools of Quality Control.
Run chart will indicate special cause existence by way of Trend , osciallation, mixture and cluster (indicated by p value) in the data.Once run chart confirms process stability ,control charts may be leveraged to spot random cause variations and take necessary control measures.
Now, I know that Control charts do not need normally distributed data (I-mr chart) and I plot the same set of data on a Control Chart with a +/- 3 sigma process limit. The process limits on the histogram and Control chart are different.
The Pareto diagram is then used to determine the major reason for delivery problems. Then, the process of tunneling down into the process begins. This is done by taking the highest bar on the Pareto diagram and collecting data on what causes that problem to occur - again both in Pareto and control chart form.
The scatter diagram is known by many names, such as scatter plot, scatter graph, and correlation chart. This diagram is drawn with two variables, usually the first variable is independent and the second variable is dependent on the first variable.
... Flow Chart; Pareto Chart ... Control Chart; Check Sheet; Run Chart; Scatter Plot; ... Schematic Diagram For Social Stratification ; Stratification Diagram History;