Change Advisory Board itil, information technology infrastructure library
Understanding the Change Advisory Board (CAB) in ITIL V4
The Change Advisory Board (CAB) is a key concept
within the Change Enablement (formerly Change Management) practice in
ITIL V4. It plays a vital role in evaluating and authorizing changes to ensure
they are aligned with business goals and pose minimal risk. For ITIL Foundation
students, mastering the CAB is essential for both the exam and practical IT
Service Management understanding.
What
is CAB in ITIL V4?
The Change Advisory Board is a group of people who
are consulted to assess, prioritize, and authorize significant changes.
The CAB ensures that all aspects—technical, business, security, and
compliance—are considered before a change is approved or rejected.
Unlike ITIL v3, where CAB was rigidly structured, ITIL V4
promotes flexibility, allowing CABs to be dynamic and context-based.
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🔍 Key Roles and
Responsibilities of CAB
|
Role / Concept |
Description |
|
CAB Composition |
Cross-functional experts (IT, security, business units,
vendors, etc.) |
|
Purpose |
Evaluate major and high-risk changes from a 360-degree
perspective |
|
Meeting Frequency |
As needed—regular (weekly/monthly) or emergency-based |
|
Emergency CAB (eCAB) |
Assembled quickly to assess urgent changes (e.g., for
incident resolution) |
|
CAB Inputs |
Change records, risk assessments, test reports, impact
analysis |
|
CAB Outputs |
Change approval, rejection, deferral, or request for more
information |
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🔄 CAB in the ITIL 4
Service Value System
- Supports
the Change Enablement practice, which ensures risks are managed while
enabling innovation.
- Aligns
with guiding principles like:
- Collaborate
and Promote Visibility: Multiple stakeholder perspectives for smarter
decisions.
- Progress
Iteratively with Feedback: Changes are reviewed based on evidence,
not assumption.
- Works
within the Service Value Chain under the “Design &
Transition” and “Deliver & Support” stages.
🔗 Internal Links to
Explore Further
- Deep
dive into Change
Control to understand the full lifecycle of change handling.
- Learn
about Service Transition to see how CAB fits into moving services into
production.
- Check Risk Management
(if available) for more on evaluating risks in CAB decisions.
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🧠 CAB and the ITIL V4
Foundation Exam
|
Topic |
Likely Exam Focus |
|
CAB Definition |
Know it's a flexible, context-driven decision-making body |
|
Emergency CAB (eCAB) |
Understand when it's used and who might be involved |
|
Change Enablement vs CAB |
CAB is a part of the Change Enablement process |
|
CAB Membership |
Based on the nature and scope of the change; not fixed |
|
Risk-Based Decision Making |
CAB evaluates change impact, urgency, cost, benefit, and
risk |
The Change Advisory Board (CAB) is more than just a
review committee—it's a strategic decision-making group that helps
balance risk vs. benefit in IT changes. For your ITIL Foundation exam:
- Know
the purpose and structure of CAB
- Understand
how CAB is adapted dynamically
- Learn
how it fits into Change Enablement
- Be
aware of Emergency CAB (eCAB) usage
By grasping the role of CAB, you're not only preparing for
the exam—you’re building a real-world skill in change governance and IT service
quality assurance.
Let me know if you’d like this content formatted for Blogger
or with diagrams like a CAB workflow or stakeholder map!
Change Advisory Board itil, information technology infrastructure library
Customer/User
User Manager
Developer/Maintainer
Expert/Consultant
Contractor
Who RAISED?, REASON, RETURN, RISKS, RESOURCES, RESPONSIBLE, RELATIONSHIPS to other changes
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