| D1 |
Use Team Approach |
Establish a small group of people who, collectively, have the knowledge,
skill, time, and authority to solve the problem and implement the
necessary corrective actions. The team should also select a leader. |
| D2 |
Describe the Problem |
Define the problem by identifying "what is wrong with what". Give full
details of the problem in quantifiable terms. |
| D3 |
Implement Short-Term Corrective Actions |
Define and implement containment actions that will isolate
the problem from the external or internal customer. Verify the effectiveness
of these actions with appropriate data from the process. |
| D4 |
Define and Verify Root Cause |
Identify all (or as many as possible) potential causes for the problem.
Evaluate each of the potential causes against the problem description, and
use experiments and statistical analysis to identify the root cause.
Develop a number of alternative corrective actions which could be used to
eliminate the root cause. |
| D5 |
Choose and Verify Permanent Corrective Actions |
Select corrective action(s) from those identified at step 4 which will
most effectively resolve the problem and which won't cause any unwanted
side effects. |
| D6 |
Implement Permanent Corrective Actions |
Implement the chosen permanent corrective action(s). Continue to monitor
the process to ensure that the root cause has been effectively eliminated. |
| D7 |
Prevent Recurrence |
Take any necessary steps to prevent recurrence of the problem, e.g.
modifying specifications, improving procedures and working practices,
updating training, etc.,. Attempt to make this as generic as possible to
prevent similar problems from occurring in the process, or the same problem
occurring in related processes. |
| D8 |
Congratulate the Team |
Remember to take time to recognise the collective efforts of the team.
Consider what has been learnt during the process and share that knowledge
more widely. |