APMG LSS Green Belt case studies
APMG LSS Green Belt · Put your knowledge to work in context.
The APMG Lean Six Sigma Green Belt is a professional certification intended for practitioners who lead or support process-improvement work within an organisation. Green Belts typically combine a working knowledge of Lean thinking - the systematic removal of waste from a process - with the Six Sigma statistical toolkit used to reduce variation and defects. The APMG LSS Green Belt case studies are 5 cases and about 2,808 words.
1Scoping a Green Belt Project in a Distribution Centre
A Green Belt in a regional distribution centre is asked to 'reduce picking errors' after customer complaints rose from 1.2% to 2.4% of orders over six months. The sponsor wants a project charter by Friday.
476 words, about 2 min2Measurement System Before Baseline
A Green Belt is measuring 'order processing time' in a shared services team. The team logs a start time when the request lands in the queue and an end time when it is closed.
521 words, about 3 min3Stratifying a Persistent Defect Rate
A Green Belt analysing invoice errors at a finance shared-service centre has 6 months of data: 4,800 invoices, 312 errors (6.5%). Stratification shows: Team A 4.1% (n=2,400), Team B 9.8% (n=2,100), Team C 3.0% (n=300).
508 words, about 3 min4Choosing an Improvement with Conflicting Constraints
A Green Belt improving a clinic check-in process has a baseline: average wait 34 minutes, 90th percentile 71 minutes, target average ≤20 minutes. Process mapping shows three steps: registration (avg 6 min, one clerk), triage form completion by patient (avg 9 min, self-service on paper), and nurse vitals (avg 8 min, two nurses).
580 words, about 3 min5Sustaining a Gain After the Green Belt Leaves
A Green Belt has reduced a call centre's average handling time from 6:10 to 5:20 and first-call resolution improved from 71% to 79% over a 10-week pilot. The improvement came from a redesigned knowledge-base search and a daily 10-minute huddle.
723 words, about 4 min