ITIL 4 CI key terms
ITIL 4 CI · Get comfortable with the vocabulary.
- Continual improvement
- Related: Improvement register, Value stream, ITIL continual improvement model
A recurring activity performed at all levels of an organization to make products, services, and practices perform better and to align them with changing business needs and objectives.
- Improvement register
- Related: Continual improvement, Backlog, Prioritization
A record that logs improvement opportunities, their status, ownership, and expected benefit so that work on them can be prioritized, tracked, and reviewed over time.
- ITIL continual improvement model
- Related: Continual improvement, Baseline, Embedding
A high-level, iterative framework of six steps that guides an organization from understanding its current situation through to embedding and sustaining improvements.
- Vision
- Related: Baseline, Improvement register, Value
A concise statement of the desired future state that explains why an improvement is worth doing and what success will look like for the organization and its customers.
- Baseline
- Related: Vision, Metric, Gap analysis
A documented snapshot of current performance, capability, or maturity, used as a reference point for measuring whether an improvement has actually delivered change.
- Gap analysis
- Related: Baseline, Vision, Improvement register
A comparison of the current state with the desired future state that identifies what is missing or underperforming and helps define the work needed to close the difference.
- Value stream
- Related: Value stream mapping, Waste, Value
A series of steps an organization uses to create and deliver products and services to consumers, which improvement work maps and optimizes to remove waste and delay.
- Value stream mapping
- Related: Value stream, Waste, Lead time
A technique that visualizes the flow of work, information, and decisions through a value stream to expose bottlenecks, handoffs, delays, and non-value-adding activity.
- Waste
- Related: Value stream mapping, Value, Lead time
Any activity, output, or resource use that consumes effort without adding value for the customer, such as rework, waiting, over-processing, or unnecessary handoffs.
- Value
- Related: Waste, Value stream, Outcome
The perceived benefit, usefulness, and importance of something to a stakeholder, which improvement efforts aim to protect, increase, or restore.
- Outcome
- Related: Output, Value, Metric
A result or change of state that a stakeholder experiences because of a product, service, or improvement, as distinct from the outputs and activities that produced it.
- Output
- Related: Outcome, Value, Metric
A tangible or intangible deliverable produced by an activity or process, which may or may not lead to a meaningful outcome for stakeholders.
- Metric
- Related: KPI, Baseline, CSF
A quantifiable measure used to assess performance, progress, or quality, ideally defined with a clear formula, data source, and target so results can be compared and acted on.
- KPI
- Related: Metric, CSF, Baseline
A key performance indicator: a metric chosen because it is critical to judging whether an organization, practice, or improvement is achieving its important objectives.
- CSF (critical success factor)
- Related: KPI, Metric, Continual improvement
A condition, capability, or element that must be in place for an organization or improvement initiative to succeed; it points to what must go right.
- PDCA cycle
- Related: Kaizen, Improvement register, Continual improvement
A repeating four-phase cycle of plan, do, check, and act used to test changes, review results against expectations, and then standardize or adjust what was learned.
- Kaizen
- Related: PDCA cycle, Continual improvement, Waste
A philosophy of continuous, incremental improvement driven by the people doing the work, emphasizing small frequent changes rather than large one-off transformation projects.
- Deming cycle
- Related: PDCA cycle, Kaizen, Metric
An alternative name for the plan-do-check-act cycle, emphasizing that quality improves through repeated, measured experimentation and feedback rather than one-time fixes.
- Lean
- Related: Waste, Value stream mapping, Kaizen
An improvement approach focused on maximizing customer value while minimizing waste, often using flow, pull, and continuous small improvement to raise efficiency and quality.
- Agile
- Related: Retrospective, PDCA cycle, Value stream
A way of working that favors iterative delivery, cross-functional collaboration, and rapid feedback so that improvements can be adapted frequently to changing needs.
- Retrospective
- Related: Agile, Improvement register, Kaizen
A structured team meeting held after a period of work to inspect what happened, identify what to keep or change, and agree on concrete improvements for the next iteration.
- Post-implementation review
- Related: Baseline, Outcome, Improvement register
A review conducted after a change or project is delivered to compare actual results with intended benefits, capture lessons, and decide on follow-up actions.
- Benchmarking
- Related: Maturity assessment, Baseline, Gap analysis
Comparing an organization's performance, practices, or maturity against internal references or external peers to identify gaps and generate improvement ideas.
- Maturity assessment
- Related: Benchmarking, Baseline, Capability
A structured evaluation of how well developed and consistently applied an organization's capabilities or practices are, often used to set improvement priorities and targets.
- Capability
- Related: Maturity assessment, Resource, Value stream
The ability of an organization, person, or system to perform a particular activity or achieve a result, which improvement work may build, strengthen, or reorganize.
- Resource
- Related: Capability, Constraint, Value stream
A person, tool, budget, information, or other asset consumed or used to carry out activities; improvement must consider whether resources are sufficient and well allocated.
- Constraint
- Related: Theory of constraints, Waste, Value stream mapping
Any factor that limits the performance of a system or value stream, such as capacity, policy, or skill shortages, and which improvement should identify and relieve.
- Theory of constraints
- Related: Constraint, Value stream mapping, Waste
An improvement approach holding that a system's throughput is limited by its weakest link, so effort should focus on identifying and elevating that bottleneck before optimizing elsewhere.
- Lead time
- Related: Value stream mapping, Waste, Metric
The total elapsed time from when a demand or request is received until it is fulfilled, a common measure of flow used to target improvement in value streams.
- Improvement backlog
- Related: Improvement register, Prioritization, Retrospective
An ordered list of pending improvement opportunities and actions, prioritized by value, risk, and effort, from which work is selected for execution.
- Prioritization
- Related: Improvement backlog, Improvement register, Value
The process of ranking improvement opportunities by criteria such as benefit, urgency, risk, cost, and effort so that limited resources are applied where they matter most.
- Embedding
- Related: ITIL continual improvement model, Organizational change management, Standardization
The stage of making an improvement permanent by updating policies, procedures, training, measures, and behaviors so the new way of working becomes normal practice.
- Standardization
- Related: Embedding, PDCA cycle, Baseline
Documenting and consistently applying an agreed way of working so that results are repeatable and can serve as a stable base for further improvement.
- Organizational change management
- Related: Embedding, Stakeholder, Capability
The practice of preparing, supporting, and guiding people through change so that new ways of working are adopted, sustained, and deliver the intended benefits.
- Stakeholder
- Related: Organizational change management, Value, Outcome
A person or group with an interest in, influence over, or exposure to an improvement, whose needs and engagement must be considered for the change to succeed.
- Governance
- Related: Prioritization, Resource, Capability
The means by which an organization is directed and controlled, including decision rights, oversight, and accountability that shape how improvement is authorized and resourced.
- Service value chain
- Related: Value stream, Continual improvement, Value
An operating model of six connected activities (plan, improve, engage, design and transition, obtain or build, deliver and support) through which value is created; the improve activity is continual improvement's home.
- Guiding principles
- Related: Continual improvement, Value, ITIL continual improvement model
A set of recommendations that guide behavior in any circumstances, such as focus on value, start where you are, progress iteratively with feedback, and collaborate and promote visibility.
- Continual improvement practice
- Related: Continual improvement, Improvement register, Service value chain
The ITIL 4 practice whose purpose is to align the organization's practices and services with changing business needs through the ongoing identification and improvement of services, components, and practices.