Specialist certification guide
CT-MBT v1.1: Model-Based Tester
Consider this qualification when you want to use explicit models to organize test design and generation, and understand how model choices affect coverage. Check the entry requirements below before you book.
Syllabus: ISTQB CT-MBT Syllabus v1.1, Exam facts checked: October 4, 2026
Is CT-MBT the right certification for you?
Consider this qualification when you want to use explicit models to organize test design and generation, and understand how model choices affect coverage.
When to choose another route: Wait if you cannot yet create and explain a small model without a generator. If your current goal is general test design, compare CTAL-TA first. If the goal is framework implementation rather than model quality and selection criteria, compare CTAL-TAE.
Exam at a glance
40multiple-choice questions
40total available points
26 / 40minimum passing score in points
60 minstandard exam duration
These figures describe CT-MBT v1.1. Use the listed point threshold, rather than assuming a fixed number of correct answers on a weighted exam.
Source: Official exam structures and rules. Appointment arrangements and any approved extra time must be confirmed with your provider.
How the exam is weighted
Question count and available points are different measures. Use the chapter allocation to set priorities, then check your own weak learning objectives. Every chapter remains examinable.
| Syllabus chapter | Questions | Points | Question share |
|---|---|---|---|
| 1. Introduction to Model-Based Testing | 7 | 7 | 17.5% |
| 2. MBT Modeling | 13 | 13 | 32.5% |
| 3. Selection Criteria for Test Case Generation | 9 | 9 | 22.5% |
| 4. MBT Test Implementation and Execution | 5 | 5 | 12.5% |
| 5. Evaluating and Deploying an MBT Approach | 6 | 6 | 15% |
| Total | 40 | 40 | 100% |
Start your planning with MBT Modeling, which accounts for 13 of 40 questions. Give additional attention to difficult application and analysis objectives. Question share alone is not a personal study timetable.
Source: ISTQB Exam Structures & Rules Tables v1.19, checked October 4, 2026.
Entry requirements
CTFL is required. Confirm which certificate evidence the provider accepts before purchasing or scheduling the exam.
Also known as: CT MBT, Model-Based Tester, Certified Tester Model-Based Tester.
Source: Official syllabus and qualification overview.
What the syllabus covers
Use these chapters to organize your reading. The practice prompts are our editorial guidance. Use the official learning objectives to check the required depth.
Chapter 1: Introduction to Model-Based Testing
Explain why a model is useful for a particular testing problem. Identify the artifacts and activities that connect it to the existing test process.
Chapter 2: MBT Modeling
Create a small model with explicit assumptions and omissions. Review its level of abstraction before treating generated tests as evidence about the real product.
Chapter 3: Selection Criteria for Test Case Generation
Apply two coverage-selection criteria to the same model. Show which tests differ and which behaviors remain outside each chosen criterion.
Chapter 4: MBT Test Implementation and Execution
Trace a model-derived test into executable actions and observations. Explain how adaptation can introduce errors even when the abstract test is reasonable.
Chapter 5: Evaluating and Deploying an MBT Approach
Evaluate a pilot using the costs of modeling, adaptation and maintenance. Judge benefit by useful evidence and changed decisions, not only generated test counts.
Source: ISTQB CT-MBT Syllabus v1.1. ISTQB and the syllabus authors own the official syllabus. The study prompts above are original editorial guidance.
How to prepare
The suggestions below are our editorial advice, not ISTQB requirements.
- Build a small model before using a modeling or generation tool.
- Trace every generated test back to a model element and the selected coverage criterion.
- Record assumptions and omissions beside the model, not only in a separate report.
- Compare the effort of building and maintaining a model with the information it gives your team.
Try this study exercise
Model a reservation as states such as available, held, paid and canceled. Invent and label the allowed transitions, then propose tests that exercise them. Add an expiry rule and check what changes in the model and tests. State which real-world behaviors the model omits so that its apparent completeness is not mistaken for complete product coverage.
A study plan with milestones
Use four passes through the material rather than a guaranteed number of weeks. The pace depends on your experience and available study time. This plan is our editorial recommendation, not an official course duration.
| Pass | Focus | Evidence of progress |
|---|---|---|
| 1. Orient | Read the learning objectives and Introduction to Model-Based Testing, MBT Modeling | A chapter map with terms you can explain and objectives you cannot yet demonstrate. |
| 2. Apply | Selection Criteria for Test Case Generation, MBT Test Implementation and Execution, Evaluating and Deploying an MBT Approach | A reviewed model, two justified coverage selections and a trace from abstract tests to executable observations. |
| 3. Diagnose | Take the matching official sample without looking at the answers | An error log separating missing knowledge, reasoning mistakes and rushed reading. |
| 4. Consolidate | Rework weak objectives and repeat the relevant exercises | A reasoned explanation of corrected answers, plus a confirmed exam version and booking checklist. |
For each uncertain answer, record the learning objective, why your choice seemed plausible, the official explanation and the example you will use to check your understanding again. Revisit guesses even when they happened to be correct.
Use the official sample exams
Take one sample under timed conditions before you open the answers, then review every guess as well as every wrong answer. Our sample exam guide shows how to turn a practice score into a study plan.
Before you book
Confirm the exam version, language and your eligibility with the provider before you pay. Use our booking checklist, the USA and India guides, and the exam day checklist.
Common questions
Do I need a specific modeling tool for the exam?
Do not make a tool purchase your first preparation step. Use simple models to understand the concepts, then consult the syllabus and provider about any training environment they use.
Does a generated test set guarantee complete coverage?
Only coverage of the specified model under the selected criterion can be claimed. The model’s omissions and the gap between model and implementation still need investigation.
Is a state model the only form of model-based testing?
No. Use the syllabus to compare modeling approaches and their suitability. A state example is a convenient learning exercise, not a claim that every system should be modeled the same way.
How should I judge a model-based testing pilot?
Compare the useful evidence, maintenance effort and integration with existing work. A large generated suite is not automatically valuable if the model or expected observations are weak.
Related certification guides
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Fees and booking
Use our exam fees overview to compare exam prices, taxes, retake charges and booking terms. Check the dated fee records in our USA guide or India guide. For other countries, use the member board directory to find the appropriate booking route. Your provider sets the final price and terms, so ask for them before you pay.
Sources and how we checked
Syllabus and exam facts checked on October 4, 2026. Scope summaries are based on the official documents linked below. Decision advice, study routines and the worked exercise are our editorial guidance. Provider availability and booking terms can change.