The control charts can also be known as statistical process control. Nevertheless, the interpretation of control charts are extremely valuable.

1. Analysing Control Charts
The control charts can also be known as statistical process control. Nevertheless, the
interpretation of control charts are extremely valuable. Communication has been an
integral part of our day-to-day modern life irrespective of social or personal. Control
charts are the means in which the process interacts with you. With the help of the
control chart the process will let you know that whether everything is within the grip.
Potential issues like various shifts, downward or upward movements, and the existing
mixtures.
Review or Analysis of Control Chart
You can review the control chart with the following steps:
➢ Choose the suitable control chart as per your data.
➢ Determine the exact time tenure for planning and collecting data.
➢ Assemble data
➢ Analyse the chart
➢ Construct the chart
➢ On the chart look for signals marked “out of control”. When you can identify the
one mark the same and analyse the cause.
Analyse the following things seriously:
➢ Cause
➢ How you have detected
➢ Way of correction
The value of Upper Control Limit is greater than the value of Lower Control Limit. It
can be the variation of the causes which make the value of Lower Control Limit.
The same can be explained better with the help of the example. Every day the time is
measured while going to work. The data is plotted on the control chart. The
approximate value is then calculated. This is minimum total value which will make you
to get work in the presence of common causes.
Out-of-signals indications
➢➢ One point which is beyond any control limits. In the below figure you can see the
point number 16 is the Upper Control Limit.
➢➢ Out of three consecutive points two points are located at similar sides along the
centreline. Point 4 sends the signal in the Figure.

2. ➢➢ If you take a close look at the diagram below out of five the four points are at
same side of central-line which is illustrated by 11.
➢➢ The eighth run in the row are also on the equal side of the central-line. Take a
look on point 21 on the same side.
➢➢ The definite persistent or consistent patterns that will give a suggestion of
something extraordinary about the process.
Rules and Regulations of control chart
➢➢ Rule 1 and 2 showcase sudden, long shifts from the approximate value. They are
usually termed as flying “one time occurrence”.
➢➢ Rule 3 and rule 4 are the small shifts that are balanced with the time. There is a
change in the raw material can also be the cause of tiny shifts.
➢➢ Rule 5 and rule 6 define the procedure that represent the one direction. For
example: The tool can wear the types of trend.
➢➢ It happens when one or more process are present and it is itself sampled.
➢➢ Rule 8 and rule 7 are is the same time when you have procedure which include all
the procedure in the sub-group.
The results are displayed in a pattern of saw-tooth. If result exceeds the value, the
operator will make an automatic adjustment to decrease the value.