The Public Switched Telephone Network - The public switched telephone network (PSTN) is the international network of circuit-switched telephones. Learn more about PSTN at HowStuffWorks. x
Black Belt Certification. The IASSC Certified Lean Six Sigma Black Belt (ICBB) is a professional who is well versed in the Lean Six Sigma Methodology, who leads improvement projects, typically in a full-time role. A Lean Six Sigma Black Belt possesses a thorough understanding of all aspects within the phases of D-M-A-I-C.
Additional Information: Course Syllabus [.pdf] | Information Brochure [.pdf] The Lean Six Sigma White Belt certification has been developed exclusively for the Management and Strategy Institute and designed to give the student a brief overview of Six Sigma and Lean principles.