1. Production engineering and operations management. Practical session 5.- Usage of quality management tools Management board Carlos Ribera Bernhard Schuster Ángeles Vázquez Longhao Xiang Sigrid Holleis Patrick Wisinger

4. Scatter Diagram in MAN In this example the Scatter Diagram shows the relation of the technique level with the number of trucks produced in the MAN company.

6. Model of Cause-and-Effect Diagrams

10. Step 2:Draw main causes for problem as ‘bones’ Low product qualification rate Machine Process People Management Production Environment

11. Step 3 ： Ask ‘What could have caused problems in these areas?’ Repeat for each sub-area. Machine Process Man Materials Lack of training Lack of experience Conditioning Poor test Engineering lacks training Wrong prog used Old equitment Contact Issue Misoperation Volume Lot Quality Low product qualification rate

13. Flowchart in MAN The speedometer dial is bowed Is the dimension of the disc correct? Yes No Assembly fault? No Yes Material failure? No Yes Supplier of the disk? No Yes Temperature? Yes Manufacture problem? No Yes Change the bowed speedometer Solve the problem in the factory The problem is solved