You are the Quality Manager of a factory producing rectangular metal blocks. Recently your customers have told you that there are marks appearing on the blocks.

1. Which four quality management tools would you use to find out what is causing the marks? What information would you expect each tool to provide?

1. How would you use your chosen tools in a logical sequence to solve the problem? Justify your sequence.

NOTE: You do not have to solve the problem as you do not have all the facts.