•Using ‘Good Judgment’ is the first step in deciding when to start an 8-D.
•Often, however, an 8-D
is a customer requirement in response to a problem: Feedback
from the customer that there is a concern
with the product. Sometimes the concern shows
up as a Symptom that has been detected by
the customer. •Ideally,
a measurable will indicate when an 8-D should be started. When an undesirable trend in a process develops,
corrective action can be taken to reduce the
cause of the variation before a symptom occurs in the process and escapes to the customer. •If the undesirable trend triggers questions, a decision must be made whether the symptom can be fixed by an individual or
whether the symptom requires further analysis.
Further analysis typically indicates it’s time to
assemble an 8-D problem solving team.