ITIL v3 vs ITIL 4: A Detailed Comparison

At a Glance

1. ITIL v3 follows a five-stage service lifecycle, while ITIL 4 uses the Service Value System (SVS) to support value creation.

2. ITIL 4 builds on ITIL v3 by introducing four dimensions of service management, seven guiding principles and 34 management practices.

3. ITIL v3 organises service management around lifecycle stages, while ITIL 4 integrates Agile, DevOps and Lean approaches to support adaptable ways of working.

4. Both aim to improve IT service quality and align services with business objectives, but ITIL 4 offers greater flexibility.

5. Both versions require thoughtful adaptation to an organisation’s needs.

Imagine an IT team that follows its incident management process carefully, yet users still experience delays. The process may be clear, but responsibilities between teams, missing information or disconnected tools could be affecting the service.

Understanding ITIL v3 vs ITIL 4 helps explain how service management guidance addresses these connected concerns. Both versions support effective services and business outcomes. Their main differences lie in how they structure guidance and bring organisational activities together.

This blog explores what each version includes and explains the differences that matter in practice. Read on!

ITIL v3: An Overview

ITIL v3 was introduced in 2007 and updated in 2011. It provides structured guidance for managing IT services through a service lifecycle, helping organisations align services with business requirements. This structure helps organisations consider how services are defined, designed, introduced, operated and improved.

The Five Stages of the Service Lifecycle

The ITIL v3 service lifecycle contains five connected stages.

1) Service Strategy

Service strategy considers customer needs, desired outcomes and the service provider’s ability to create value. It guides decisions about which services to offer and how to manage them.

2) Service Design

Service design focuses on designing new or changed services and the arrangements needed to support them. It considers requirements such as availability, capacity, security, continuity and service levels.

3) Service Transition

Service transition focuses on moving new or changed services into operation. It includes planning, testing, managing changes and preparing the organisation to support services while controlling risks.

4) Service Operation

Service operation focuses on the day-to-day delivery and support of IT services. It includes activities such as restoring disrupted services, handling service requests and managing incidents, problems and events.

5) Continual Service Improvement

Continual service improvement focuses on measuring and improving services and service management processes. Although presented as a lifecycle stage, it supports improvement throughout the lifecycle.

Pro Tip

When reviewing an existing service, consider how decisions and information move between lifecycle stages. Delays can occur at handover points even when individual teams perform their activities effectively.

ITIL 4: An Overview

ITIL 4 was introduced in 2019. It builds on earlier ITIL guidance while placing greater emphasis on value co-creation, connected activities and adaptable ways of working. Its central concepts include the service value system, four dimensions of service management, seven guiding principles and management practices. Together, they help organisations consider how different resources and activities contribute to effective services.

The Service Value System

The ITIL Service Value System (SVS) explains how an organisation's components and activities work together to enable value co-creation through IT-enabled services. It contains five components:

 The service value chain contains six activities:

1) Plan

2) Improve

3) Engage

4) Design and transition

5) Obtain/build

6) Deliver and support

These six activities can be combined in different sequences to form value streams based on specific demands and opportunities. For example, resolving an incident and introducing a new service may require different combinations of activities.

The Four Dimensions of Service Management

The four dimensions help organisations consider the factors needed for effective service management. They should be assessed together because decisions in one area can affect the others.

1) Organisations and People: This dimension covers organisational structure, culture, roles, responsibilities, skills and communication.

2) Information and Technology: This dimension considers the information, knowledge and technology required to manage services.

3) Partners and Suppliers: This dimension examines external relationships, responsibilities and dependencies that contribute to services.

4) Value Streams and Processes: This dimension considers how activities and resources are organised to create value through products and services.

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Key Differences Between ITIL v3 and ITIL 4

The main differences concern how guidance is structured and how organisational resources contribute to services. The following table provides a quick comparison between ITIL v3 and ITIL 4:

Organisations using ITIL v3 processes do not need to discard their existing procedures when adopting ITIL 4 guidance. Instead, they can assess what already works, identify gaps in collaboration and value delivery, and gradually incorporate relevant ITIL 4 practices and principles.

1) Service Lifecycle vs Service Value System

ITIL v3 uses the service lifecycle to explain how services are managed from strategy through operation and improvement.

ITIL 4 uses the service value system to show how organisational components work together. Within this system, value streams combine activities and resources to respond to particular demands and opportunities.

For example, a request for a new service may involve engagement, design, development, supplier coordination and operational support. The relevant activities are connected according to the work required.

ITIL v3’s lifecycle stages are interconnected and support coordination and feedback. They do not require all work to follow a rigid sequence.

2) Processes vs Management Practices

A process describes related activities that transform inputs into outputs. Processes help organisations establish consistent ways of performing work.

A management practice is a set of organisational resources designed to perform work or accomplish an objective. Unlike an individual process, it has a broader scope that can include people, processes, information, technology and other supporting resources.

ITIL 4 incorporates processes within broader management practices that also consider stakeholders, responsibilities, knowledge, technology and communication.

The 34 ITIL 4 practices are grouped into three categories:

These categories do not correspond directly to individual ITIL v3 lifecycle stages.

3) Service Value and Value Co-creation

Both versions connect services with customer outcomes and the management of specific costs and risks.

ITIL v3 explains services in terms of helping customers achieve desired outcomes without having to manage specific costs and risks. This does not mean that customers avoid every cost or risk associated with using a service.

ITIL 4 makes value co-creation explicit. Providers and consumers cooperate throughout the service relationship, with other stakeholders contributing where relevant.

Consider an online collaboration service. The provider maintains the platform and offers support. The customer contributes by training employees, configuring access and establishing effective working arrangements. The value achieved depends on contributions from both sides.

4) Guiding Principles

ITIL 4 includes seven guiding principles that support decisions and actions:

1) Focus on Value: Understand what matters to service consumers and other stakeholders.

2) Start Where You Are: Assess existing capabilities before deciding what to change.

3) Progress Iteratively with Feedback: Make manageable improvements and learn from the results.

4) Collaborate and Promote Visibility: Involve relevant people and make work understandable.

5) Think and Work Holistically: Consider how different organisational elements interact.

6) Keep it Simple and Practical: Use an approach that achieves the objective without unnecessary complexity.

7) Optimise and Automate: Improve how work is performed and use automation where appropriate.

ITIL Practitioner guidance, introduced in 2016 during the ITIL v3 era, included nine guiding principles. ITIL 4 developed this guidance into seven principles and made them a central part of Foundation-level learning.

In practice, the principles help teams decide how to apply ITIL concepts to their circumstances rather than copying an approach without assessing its suitability.

Quick Checklist: Applying ITIL 4 Guiding Principles

1) Have we identified what creates value for service consumers?

2) Have we assessed existing processes and capabilities?

3) Are we making improvements in manageable stages?

4) Are relevant teams collaborating and sharing information?

5) Have we considered the wider impact of proposed changes?

6) Can unnecessary steps or complexity be removed?

7) Have we optimised activities before introducing automation?

5) Continual Improvement

ITIL v3 includes continual service improvement as a lifecycle stage. It supports the measurement and improvement of services and processes across the lifecycle.

ITIL 4 includes continual improvement as both an SVS component and a management practice. Its scope can include products, services, practices and wider organisational capabilities.

The ITIL 4 continual improvement model uses seven steps:

1) What is the vision?

2) Where are we now?

3) Where do we want to be?

4) How do we get there?

5) Take action

6) Did we get there?

7) How do we keep the momentum going?

These steps help organisations evaluate their current performance, set improvement objectives, implement changes and measure results. The ITIL 4 continual improvement model differs from ITIL v3's seven-step improvement process.

6) Alignment with Agile, Lean and DevOps

ITIL v3 could be adapted to iterative working. ITIL 4 provides more explicit guidance for connecting service management with Agile, Lean and DevOps.

Agile can support iterative delivery and feedback. Lean can help teams identify waste and improve flow. DevOps can support collaboration and shared responsibility across development and operations.

ITIL guidance can help connect these approaches with service requirements, governance, risk management and continual improvement.

For example, a team releasing frequent software updates can use change enablement guidance to assess risks and establish appropriate authorisation arrangements. The approach should reflect the nature of the changes and the organisation’s needs.

ITIL Version Update

ITIL (Version 5) is now available and is being introduced through a phased release. It builds on earlier ITIL guidance, with greater emphasis on digital products, services, AI and adaptable ways of working. Existing ITIL 4 certifications remain recognised, and certified professionals can explore ITIL (Version 5) qualifications without necessarily restarting their certification journey.

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