Frequently Asked Questions
What is Lean Six Sigma and how does it work?
Lean Six Sigma is a structured methodology that helps organizations improve performance by eliminating waste and reducing process variation. It uses a data-driven approach (DMAIC) to identify inefficiencies and deliver measurable results.
Is Lean Six Sigma relevant outside manufacturing?
Yes, Lean Six Sigma is widely used across all industries, including healthcare, IT, finance, logistics, government, telecommunications, and the service sector, to improve processes and customer outcomes.
Are there free Lean Six Sigma courses available?
Yes, users can create a free account and access introductory courses before committing to full certification programs.
What accreditation and professional recognition does Lean Six Sigma Coach offer?
Lean Six Sigma Coach is a division of RPM-Academy, an accredited partner of the International Lean Six Sigma Institute (ILSSI). RPM-Academy develops and delivers its own Lean Six Sigma training programs and awards its own certifications, independently of ILSSI’s certification programs.
Do courses include real-world application?
Yes, training is designed to be practical and project-focused, allowing learners to apply Lean Six Sigma tools to real-world business problems.
Can I access all courses with one subscription?
RPM-Academy’s Platinum All-Access subscription provides access to an extensive library of self-paced learning, including Lean Six Sigma, Agile, and professional development courses. Learners can explore multiple subjects at their own pace through one affordable subscription, while optional services and formal certification may have separate requirements or fees.
Are courses suitable for beginners?
Yes, beginners can start with foundational courses and gradually progress to advanced certification levels through guided learning paths.
Can organizations use Lean Six Sigma Coach for team training?
Yes, organizations can deploy branded training portals to train teams, track progress, and build internal capabilities at scale.
Is there ongoing support or coaching available?
Our self-paced training programs are designed and structured to allow learners to progress independently, with access to structured course materials and learning resources. Additional instructor support, coaching, or project guidance may be available through separately arranged services, depending on individual or organizational requirements.
How quickly can I complete certification?
Completion time depends on your pace, but self-paced learning lets you progress faster than traditional classroom training.
What's the difference between "training" and "certification" at Lean Six Sigma Coach?
Training is course access via a free account or the store; certification is a separate purchase requiring an exam and a written project summary. Completion of courses earn students a “Certificate of Achievement” that confirms they have acquired the requisite knowledge. Certification requires that student successfully write a formal certification exam and most importantly, demonstrate the practical application of what has been learned by completing an improvement project.
Does purchasing a certification include the training courses?
No, certification is purchased separately from training courses and does not include course access or software. If you haven’t completed the related training yet, you’re directed to register for a free account or browse the store for the appropriate Certificate or Certification course first.
Do I have to complete White or Yellow Belt before enrolling in the Green Belt?
No, Six Sigma Green Belt has no formal prerequisites, so you can enroll directly.
What does a Black Belt certification confirm that a Green Belt doesn't?
Black Belt confirms you can lead high-impact, enterprise-level projects; Yellow Belt and Green Belt confirms smaller-scale projects and kaizen facilitation.
What is DMAIC, and why does every course mention it?
DMAIC stands for Define, Measure, Analyze, Improve, and Control. It is a structured, five-phase problem-solving methodology used in Lean Six Sigma to identify root causes, improve process performance, and sustain results. Its application and depth vary depending on the training level and the nature of the improvement challenge.
Do I need to buy anything else, like statistical software?
For most belt levels, no – the course price covers everything you need. SigmaXL, a statistical add-in for Excel, is sold separately in the store for learners who want dedicated analysis software for Six Sigma/Lean Six Sigma Green Belt or Black Belt training and advanced Six Sigma projects, but it isn’t a requirement to complete coursework or certification.
How many hours does each belt level actually take?
Depending on your choice of program — Lean, Six Sigma, or Lean Six Sigma — Our self-paced courses will require an investment of: 6 to 9 hours for White Belt, 12 to 18 hours for Yellow Belt, 24 to 44 hours for Green Belt, and 30 to 60 hours for Black Belt. estimates, Actual time will vary by learner. For more information on our programs, you can review our detailed Learning Paths.
What is a Champion certificate, and who is it for?
Champion is the leadership-track credential, sitting above the practitioner belts (Yellow/Green) and the advanced Black Belt. It’s designed for managers and executives who sponsor and oversee Lean Six Sigma initiatives rather than execute the projects themselves; it builds the strategic and organizational side of process improvement rather than hands-on project tools.
Do I need a strong math or statistics background to succeed?
No. While Six Sigma does use statistical tools, the courses are built for beginners with guided, step-by-step instruction; no prior stats or engineering background is assumed. Optional software like SigmaXL exists precisely to handle the heavier calculations for you.
Does Lean Six Sigma certification actually help my career or salary?
Lean Six Sigma certification can strengthen your professional credentials and help you pursue opportunities involving process improvement, quality, operations, and leadership. Its value is recognized across many industries, although career advancement and salary outcomes depend on your experience, role, employer, and ability to apply what you’ve learned.
Do these certifications expire, or do I need to renew them?
No. Once you have successfully earned your certification, it does not expire and there are no renewal requirements or recurring certification fees.
Your certification recognizes the knowledge and competencies you demonstrated at the time it was awarded. However, Lean Six Sigma is a continually evolving field, so we encourage certified professionals to keep their skills current through ongoing learning, practical application, and professional development.
What is the difference between Green Belt and Black Belt certification?
Green Belt certification demonstrates the ability to apply Lean Six Sigma methods to structured improvement projects, while Black Belt certification demonstrates more advanced analytical, problem-solving, and project leadership capabilities. Both require evidence of practical application, with Black Belt involving greater methodological depth and complexity.
