Developing Quality Maintenance. Step 1 Step 2 Investigate the Processes where Defects Occur Step 3 Investigate and Analyze 4-M Conditions Step 4 Plan Action to Correct Deficiencies Step 5 Analyze Situations where the Conditions for Building in Quality Are Unclear Step 6 and 7 Eliminate Flaws in 4-M Conditions and Finalize Step 8 Consolidate Checking Methods Step 9 and 10 Determine Standard Values for Checks and Revise Standards