About the OCSMP Model User (OMG-OCSMP-MU100) Exam
Key Takeaways
OMG-OCSMP-MU100 has 90 multiple-choice questions, and passing requires at least 56 correct answers (62%).
Testing time is 90 minutes in native English-speaking countries and 120 minutes elsewhere; the fee is US$350 plus taxes.
The exam covers SysML v1.2; the SysML v2 Model User exam that OMG launched in June 2026 is a separate credential.
Structure is 36% of the coverage map, behavior 30%, cross-cutting constructs 20%, and requirements 14%; block diagrams alone are 22%.
Certification expires 3 years after the exam date; taking the same or a higher-level OCSMP exam extends it.
About the OCSMP Model User (OMG-OCSMP-MU100) Exam
Quick Answer: OMG-OCSMP-MU100 is the entry-level SysML certification exam from the Object Management Group (OMG). It has 90 multiple-choice questions (text and images), a pass mark of 56 correct answers (62%), and 90 minutes of testing time in native English-speaking countries (120 minutes elsewhere). The fee is US$350 plus taxes, there are no prerequisites, and the exam covers SysML v1.2.
What the Exam Certifies
OMG says the SysML Model User exam tests "an individual's knowledge and skills required to interpret a basic SysML model of a system, covering system behavior, structure, and requirements as well as cross-cutting constructs." The key word is interpret: you read diagrams and answer questions about what they mean. Building models is the job of the three Model Builder levels that follow, and OMG describes a Model User holder as a productive contributor, such as a junior systems engineer, who can interpret models on an MBSE team.
The OMG-Certified Systems Modeling Professional (OCSMP) series has four levels:
| Level | Exam | Focus |
|---|---|---|
| 1 | Model User (MU100) | Reading and interpreting basic SysML models |
| 2 | Model Builder Fundamental (MBF200) | Constructing basic SysML models |
| 3 | Model Builder Intermediate (MBI300) | Using the full SysML feature set |
| 4 | Model Builder Advanced (MBA400) | Adapting SysML and supporting MBSE across an organization |
OMG lists Model User as the prerequisite to the remaining Model Builder exams.
Current Exam Facts
| Detail | Official value (OMG exam information sheet) |
|---|---|
| Standard covered | Systems Modeling Language (SysML) v1.2 |
| Format | Multiple choice (text and images) |
| Passing score | At least 56 of 90 correct, or at least 62% |
| Duration | 90 minutes in native English-speaking countries; 120 minutes in all others |
| Fee | US$350 plus taxes (or the regional-currency equivalent) |
| Languages | English and Japanese; translation apps are prohibited during the exam |
| Prerequisites | None |
| Delivery | Booked through a Pearson VUE account, at a secure test center or online |
| Cancellation | More than 24 hours before the appointment for a full refund; otherwise the fee is forfeited |
| Retake | A failing score report includes a 20% discount code for a retake |
| Validity | Certification expires 3 years after the exam date; taking the same or a higher-level exam extends it |
Where the 120-minute allowance applies, OMG confirms the extra time by email after the exam order is completed. Accommodation requests go to OMG's certification office. After a pass, OMG issues a Credly digital credential, usually within hours. Discount and promotion codes change during the year, so check OMG's exam discounts page before paying.
Pacing math: 90 questions in 90 minutes is one minute per question. With the 120-minute allowance, it is 80 seconds per question.
The Official Coverage Map
OMG publishes percentage weights, not item counts. The "≈ items" column multiplies each weight by 90 and rounds, so treat it only as a planning estimate.
| Area | Sub-topic (OMG wording, shortened) | Weight | ≈ items | Where this guide teaches it |
|---|---|---|---|---|
| Models of System Structure (36%) | Interpreting system structure on block diagrams (bdd and ibd) | 22% | 20 | Chapters 2–4 |
| Interpreting model organization on package diagrams | 7% | 6 | Section 1.2 | |
| Interpreting system constraints on bdd and parametric diagrams | 7% | 6 | Chapter 5 | |
| Models of System Behavior (30%) | Flow-based behavior on activity diagrams | 13% | 12 | Chapters 6–7 |
| Event-based behavior on state machine diagrams | 10% | 9 | Chapter 8 | |
| Message-based behavior on sequence diagrams | 7% | 6 | Chapter 9 | |
| Cross-Cutting Constructs (20%) | Allocations across diagram types; comment, rationale, problem, and constraint notations; diagram frames and stereotypes | 20% | 18 | Chapter 10 and Section 1.1 |
| Models of Requirements (14%) | Requirements on requirement diagrams | 7% | 6 | Chapter 11 |
| System functionality on use case diagrams | 7% | 6 | Chapter 12 |
The rounded estimates add up to 89, not 90, which is a reminder that the real per-topic split is not published.
Two scope notes from the official outline are easy to miss:
- Shared aggregation is out. The block-diagram topic lists associations "including composite but not shared aggregation."
- SysML 1.2 port notation is in. The internal block diagram topic names "flow ports and standard ports," the two port types of SysML 1.2, along with connectors and item flows.
SysML v1.2, Not SysML v2
In June 2026 OMG launched a separate SysML v2 Model User exam (US$400) for the redesigned SysML v2 language. OMG calls the v2 series "independent of and complementary to the existing OCSMP certification series" and says existing OCSMP certifications "will not be superseded." If you are registering for MU100, study SysML v1.2 notation: blocks, bdd and ibd frames, flow ports, and the nine v1 diagram kinds covered in this guide. Pearson VUE now lists the program under the EDM Association, the organization OMG belongs to, as "EDMA-Certified Systems Modeling Language Professional (OCSMP)"; the exam content and code are unchanged.
Recommended Study Materials (OMG List)
- A Practical Guide to SysML, 3rd edition (Friedenthal, Moore, and Steiner): Chapter 3, "Getting Started with SysML," and Chapter 4, "An Automobile Example Using the SysML Basic Feature Set"
- SysML Distilled (Delligatti)
- Systems Engineering with SysML/UML (Weilkiens) and SysML for Systems Engineering (Holt and Perry)
- The OMG SysML Tutorial, the Hybrid SUV example model (SysML v1.2), and Peak's Simulation-Based Design Using SysML: A Parametrics Primer
How to Use This Guide
- Read Chapter 1 first. Frames, diagram kinds, and packages come up in every other chapter.
- Spend the most time on Chapters 2–4. Block diagrams are the largest single sub-topic at 22%.
- For every notation, learn both what it looks like and which way the arrow points. Many questions turn on direction: «allocate», «satisfy», «deriveReqt», «include», «extend», and generalization all point a specific way.
- Answer each section's quizzes without looking back, then reread the explanation for every question you missed.
According to OMG's exam information sheet, what does a candidate need to pass OMG-OCSMP-MU100?
At least 63 of 90 correct answers (70%)
At least 56 of 90 correct answers (62%)
A scaled score of 500 on a 200–800 scale
At least 45 of 90 correct answers (50%)
Which modeling-language version does OMG list as the standard covered by the Model User exam?
SysML v2.0, the redesigned language with a textual syntax
UML 2.5.1 without the SysML profile
SysML v1.6
SysML v1.2
A candidate has limited study time left. Based on OMG's coverage map, which single sub-topic carries the most weight?
Interpreting flow-based behavior on activity diagrams
Interpreting requirements on requirement diagrams
Interpreting system structure on block diagrams
Interpreting event-based behavior on state machine diagrams
Sections you finish are checked off in the contents.