OMG Certified Expert in BPM 2 — Fundamental (OMG) and Lean Six Sigma Green Belt (IASSC) (PeopleCert) cover different bodies of knowledge. Here's how they compare side by side — and how to pick the one that fits your role.
The fastest way to see which credential fits your experience and goals.
| OCEB 2 Fund.OMG Certified Expert in BPM 2 — Fundamental | LSS Green BeltLean Six Sigma Green Belt (IASSC) | |
|---|---|---|
| Level | Modeling · Foundation | Intermediate |
| Exam length | 1h 30m | 3h 0m |
| Questions (real exam) | ~90 | ~100 |
| Pass mark | 69% | 70% |
| In a sentence | Master BPMN process modeling — the BA's modeling certification. | DMAIC process improvement — the IASSC standard. |
| Free practice | 297 sample questions | 154 sample questions |
Exam parameters are compiled from each vendor's official exam guide. Always confirm the current format, eligibility and fees on the official OMG and PeopleCert site before booking. ExamDeck is an independent study tool and is not affiliated with OMG or PeopleCert.
Figures as published by each vendor, transcribed on the date shown. Where a vendor prices differently for members, both prices are listed.
| OCEB 2 Fund.facts as of August 2026 | LSS Green Beltfacts as of September 2026 | |
|---|---|---|
| Fees | Exam fee: $350 (verify on omg.org) Prerequisites / application fee: None Recertification: None currently required |
Exam voucher - IASSC store: $402 (the IASSC certification page still says $350; verified 22 Sep 2026) Exam voucher - PeopleCert: €361, about $415 - same exam, other storefront of the same group (verified 22 Sep 2026) Practice exam (optional, not included): IASSC evaluation exam $78 / PeopleCert mock €62 Prerequisites / project / training: None required Recertification (every 3 yrs): 50-question, 90-minute exam at 70% - $268 IASSC store / €243 PeopleCert |
| Study time | commonly reported 40–80 hours depending on prior BPMN/BPM exposure | commonly reported 40–80 hours depending on prior statistics background |
| Renewal | OMG certifications do not currently require periodic recertification — verify on omg.org | Every 3 years - a 50-question, 90-minute recertification exam at 70%, max two attempts two weeks apart; $175 on IASSC's policy page but $268 in IASSC's store and €243 via PeopleCert (verified 22 Sep 2026) |
| Entry requirement | No formal prerequisites — anyone can register with OMG/Pearson VUE. | None — IASSC/PeopleCert require no training course, work experience or completed project (in contrast to ASQ). |
| Body of knowledge | the BPMN 2.0 specification and OCEB 2 coverage map | the IASSC Lean Six Sigma Green Belt Body of Knowledge |
| Full fact pages | OCEB 2 Fund. cost · format · eligibility | LSS Green Belt cost · format · eligibility |
Compare the three-year cost of any two certifications, member or not, with the certification cost calculator.
Original, expert-reviewed questions with an explanation for every option. No dumps, no ads.
OCEB 2 Fund. (OMG Certified Expert in BPM 2 — Fundamental) is a OMG modeling · foundation credential, while LSS Green Belt (Lean Six Sigma Green Belt (IASSC)) comes from PeopleCert (intermediate). They cover different bodies of knowledge, so the choice depends on the role you're aiming for rather than difficulty alone.
The OCEB 2 Fund. exam runs about 1h 30m with ~90 questions; the LSS Green Belt exam runs about 3h 0m with ~100 questions. The more senior credential generally demands more applied, scenario-based judgement.
Yes. A free account gets 6 sample questions in study mode for each of OCEB 2 Fund. and LSS Green Belt, with an explanation for every option, plus a 10-question diagnostic for each. No credit card required.
Try OCEB 2 Fund. or LSS Green Belt practice in study mode, with full explanations and sources. No card required.
Start free →