CSSC Green Belt study materials
CSSC Green Belt study resources

CSSC Green Belt case studies

CSSC Green Belt · Put your knowledge to work in context.

The CSSC Six Sigma Green Belt (CSSC-CSSGB) is a professional credential issued by The Council for Six Sigma Certification to individuals who demonstrate a thorough understanding of enhanced problem-solving skills built around the DMAIC model - Define, Measure, Analyze, Improve and Control. A Green Belt is positioned as a trained team member who operates within his or her own function-specific area, taking on small, carefully defined Six Sigma projects that require less than a Black Belt's full-time commitment. The CSSC Green Belt case studies are 5 cases and about 5,107 words.

1

The Redeployment Charter

A regional auto insurer's claims unit processes 4,200 claims a month with 22 FTE. The VP sponsor wants the charter signed this week with the goal stated as: "Cut average cycle time 40% and redeploy 6 FTE by the end of Q3." The process owner says most of the delay is a three-day wait for medical records from external providers; the Black Belt's stratified data confirms 62% of cycle time sits in that wait and another 18% in re-keying data between two systems.

965 words, about 5 min
2

The Marginal Gauge and the 900 ppm

Final assembly gauges shaft diameter against 25.00 ± 0.05 mm at roughly 30 pieces a day. A crossed gauge R&R (3 operators × 10 parts × 3 trials) returns %GRR = 29% of tolerance, ndc = 3, with repeatability 18% and reproducibility 22%.

976 words, about 5 min
3

The Significant 1.9 Minutes

Two lines build the same product family. Over eight weeks, Line A averaged 42.7 minutes cycle time (n = 120, s = 5.2) and Line B averaged 40.8 minutes (n = 45, s = 5.4).

1,028 words, about 5 min
4

The Two-Cell Pilot

Changeover on six identical filling cells averages 46 minutes; the goal is 25. A proposed method - pre-staging tools on a cart and converting several internal steps to external ones - must be trialed before any capital is spent.

1,068 words, about 5 min
5

Two Points After Lunch

After a fill-volume improvement, an Xbar-R chart (n = 5, sampled every 30 minutes) runs on a bottling line; target 500 mL, limits 495/505. Over three days, two Xbar points fall above the UCL - both in the 20 minutes immediately after the scheduled lunch break.

1,070 words, about 5 min