Question

3.8. Select three service companies or organizations you are familiar with and indicate how process control charts could be used in each.

3.9. Visit a local fast-food restaurant, retail store, grocery store, or bank, and identify the different processes that control charts could be used to monitor.

Answer 1

Service organisation: Any leading hospital from USA

Process control charts are used on the data which recived from various process of operations.

Som charts are

1.Cycle time for checkups and other activities: Activities are listed out and data of entry of patient, their checkup time, diagnostic time etc.

2.X & R control chart ( Mean & Range chart): Data observed from various are plotted on based on range and median.

3.U chart ( for calculating absentism calculation)

Control charts are basically graphs which are used by companies in various industries to study the evolution or change in a business process over time. The companies keep a track of the patterns traced by the control charts to develop the process strategy for future

The various patterns in control charts are as follows:

• Freak pattern:
  • special cause situation
  • Results from causes having large effect
  • Frequency of occurrence is quite minimal
• Drift pattern:
  • Current process value is dependent on the previous process state’s value
  • Total process variability of this pattern is quite high
  • Can increase the overall cost of system
• Cycle pattern:
  • The most common pattern
  • Based on the time of observation of the system
  • Caused when the normal inputs or methods of a process are modified
• Mixture pattern
  • When data from 2 control charts are plotted on the same system
  • The combination of patterns may be erroneous in nature
  • Steps must be taken to solve such a pattern

In a restaurant and fast food industry, control charts can be used for the following:

• To keep a track of the most preferred and least preferred items on the menu
• To monitor the dishes which generate the highest income
• The rate of returned items in the restaurant
• The complaint chart of the customers