The Value of ITIL Practices and Their Support for the Value Chain
What the exam asks
This domain tests why each practice exists and how it supports the service value chain. You must connect practice purpose and practice success factors to value chain activities and to outcomes, not recite definitions.
Core rules
- Each practice has a purpose and practice success factors; learn the purpose and the outcome it enables.
- Practices support several value chain activities at once. Knowledge management supports all six activities; measurement and reporting supports plan, improve, and deliver and support.
- The value chain is not a rigid sequence; activities interact and are triggered by demand and by feedback.
- Continual improvement is embedded across the chain and across value streams, not a separate phase at the end.
- Value balances outcomes, costs and risks; practices exist to create value, not to produce documents or fill templates.
- Practice success factors describe what good looks like and give a basis for measuring practice maturity.
Worked example
A question asks where supplier management contributes. Reasoning: engage covers contracting and relationship management; design and transition covers onboarding suppliers into new services; obtain and build covers sourcing components; deliver and support covers performance monitoring and escalation. The answer is several activities, so selecting a single activity is the trap.
Traps
- Mapping one practice to exactly one value chain activity.
- Reciting definitions without stating purpose, outcome or success factor.
- Treating continual improvement as a one-off project rather than an ongoing capability.