Quality control on a line

For the effective and correct identification of root cause, it will almost certainly be necessary to use more than one of the tools in previous sections.

Each of the following scenarios has then been used by the team / investigator after an information gathering brainstorming session to use and populate the 3 main tools and techniques previously described:

  • Mind Map
  • Ishikawa / PEM PEM
  • Five Whys

Scenario 1

An operator should have weighed out ingredient A on line 2. However, they used ingredient B, leading to rejection of product XYZ.

Scenario 2

Bars of chocolate containing hazelnuts have been incorrectly packaged in 'nut-free' plain chocolate wrappers resulting in a possible health risk to anyone with an allergy or intolerance to almond and other nuts.