ICGB case studies
ICGB · Put your knowledge to work in context.
The IASSC Certified Lean Six Sigma Green Belt (ICGB) is a professional credential for practitioners who are well versed in the core to advanced elements of Lean Six Sigma methodology. Green Belts lead improvement projects or serve as team members on more complex projects led by a Certified Black Belt, typically in a part-time role. The ICGB case studies are 5 cases and about 5,250 words.
1Scoping a Mis-Shipment Project at a Regional Distribution Center
You are a newly certified Green Belt at a regional distribution center that ships roughly 48,000 orders a month. After a key-account escalation, the site director asks you to "fix the mis-shipment problem." Last quarter, mis-shipments - wrong item, wrong quantity, wrong address - ran at 1.8% of orders against a contractual limit of 0.5%.
972 words, about 5 min2Handle-Time Measurement System in a Claims Contact Center
An insurance claims contact center wants to reduce average handle time (AHT) from 412 seconds to 360 seconds across two sites and four teams. AHT is pulled from the ACD system, but supervisors also run monthly manual audits with a stopwatch and consistently get figures about 30 seconds lower.
1,050 words, about 5 min3Mold or Shift? A Confounded Defect Investigation
A plastics plant moulds a housing on two tools. Defect rate for the past month is 4.2% against a 2.0% target.
987 words, about 5 min4Designing a Coating Pilot Under Line Constraints
A powder-coating line runs adhesion failures at 7.3% of parts against a 2.0% requirement, and the customer has issued a formal corrective-action request. The team's fishbone and FMEA narrowed the field to four candidates: oven cure temperature, line speed, pretreatment concentration and plant humidity.
1,112 words, about 6 min5Why the Pharmacy Fill-Error Gain Slipped Away
A hospital outpatient pharmacy closed a Green Belt project six weeks ago after a kaizen reduced prescription fill errors from 3.1 to 1.4 per 10,000 prescriptions. The control plan centred on a five-point checklist audit performed three times a week by the lead pharmacist, with a documented reaction plan requiring re-training if any audit item failed twice in a row.
1,129 words, about 6 min