CSSC Black Belt case studies
CSSC Black Belt · Put your knowledge to work in context.
The CSSC Six Sigma Black Belt Certification – Standard is a single comprehensive, open-book exam offered by the Council for Six Sigma Certification. It is aimed at candidates who have already completed Six Sigma training and believe they have a solid grasp of the full Black Belt Body of Knowledge, including Six Sigma philosophies and principles, supporting systems and tools, team leadership and dynamics, the DMAIC model, and basic lean enterprise concepts such as recognising non-value-added activities. The exam contains 150 multiple-choice and true/false questions drawn from the major sections of the Black Belt Body of Knowledge, and candidates have 3 hours to finish it. It can be taken online or at designated testing centres worldwide. The CSSC Black Belt case studies are 5 cases and about 3,214 words.
1Sterile-Fill Reject Reduction: Charter Scope and Sponsor Pressure
A contract sterile-fill manufacturer runs one vial line across three shifts and two vial sizes. The line fills five products, with a 45-minute changeover between products.
655 words, about 3 min2Coating Thickness Measurement System: Gage R&R and Attribute Agreement
An automotive supplier measures primer thickness on stamped panels with a handheld eddy-current gauge. The specification is 18-22 micrometers.
624 words, about 3 min3Non-Normal Capability and a Two-Reactor Mixture
A specialty chemical plant produces a batch polymer. The key quality characteristic is percent conversion; the customer specification has a lower limit of 92.0% and no upper limit.
624 words, about 3 min4Hard-to-Change Factor in a Molding DOE
A medical-device molder wants to reduce warp in a polycarbonate housing. Four factors are identified: melt temperature (A), packing pressure (B), cooling time (C), and gate insert design (D).
661 words, about 3 min5Laboratory TAT Control Chart After a Lean Redesign
A hospital central laboratory tracks median turnaround time for STAT chemistry panels from specimen receipt to result verification. Before a Lean redesign, 30 daily medians had a mean of 42 minutes and a standard deviation of 6 minutes.
650 words, about 3 min