The 8D report is a document that is used in the processing of a complaint. The acronym stands for the eight process steps (disciplines):
- D1 - Assembling the team
- D2 - Describing the problem
- D3 - Determine immediate measures
- D4 - Analyse the cause(s) of the problem
- D5 - Plan corrective action
- D6 - Implement corrective actions
- D7 - Prevent recurrence of error
- D8 - Appreciate the team's performance
The 8D methodology parallels the DMAIC methodology on which Six Sigma is based, with the disciplines D1, D2 and D5 corresponding to the "D" Define process, D3, D5 and D6 to the "I" Improve process, D4 to the "M" Measure or "A" Analyze process and D7 to the "C" Control process.