Operations Management
5. Tutorial: Chapter 5 – Quality Management – Exercises
Task 1: Basics of Quality Management
a) What are the levels of an organization where TQM comes into action? What are the key
features of TQM?
b) Describe the main concept of TQM, its key features, and explain its process.
, c) What is the role of quality control and its methods?
Task 2: Control Charts
RoboTec AG is faced with problems arising in its filling process of hydraulic oil. That is why
the enterprise now would like to use control charts in order to monitor the filling process re-
garding its stability. In the past employees have selected ten samples where four filling level
measurements have been conducted for each sample from the regular operation of the process.
The result of the measurements is displayed in the table below:
Sample Filling level
[-] [ml]
1 501 500 500 502
2 502 500 501 500
3 500 502 500 499
4 499 500 501 500
5 500 499 500 501
6 500 500 499 502
7 499 501 500 500
8 501 500 499 502
9 500 502 501 500
10 499 500 501 503
a) After consideration of the measured values what type of control chart would you recom-
mend? Justify your decision.
2
5. Tutorial: Chapter 5 – Quality Management – Exercises
Task 1: Basics of Quality Management
a) What are the levels of an organization where TQM comes into action? What are the key
features of TQM?
b) Describe the main concept of TQM, its key features, and explain its process.
, c) What is the role of quality control and its methods?
Task 2: Control Charts
RoboTec AG is faced with problems arising in its filling process of hydraulic oil. That is why
the enterprise now would like to use control charts in order to monitor the filling process re-
garding its stability. In the past employees have selected ten samples where four filling level
measurements have been conducted for each sample from the regular operation of the process.
The result of the measurements is displayed in the table below:
Sample Filling level
[-] [ml]
1 501 500 500 502
2 502 500 501 500
3 500 502 500 499
4 499 500 501 500
5 500 499 500 501
6 500 500 499 502
7 499 501 500 500
8 501 500 499 502
9 500 502 501 500
10 499 500 501 503
a) After consideration of the measured values what type of control chart would you recom-
mend? Justify your decision.
2
