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Welcome to the Digital Edition of the TOGAF Standard

This standard contains two types of content designed to assist the Enterprise Architect:

  1. TOGAF Fundamental Content
  2. Extended Guidance

The role of the TOGAF Fundamental Content is to provide essential “scaffolding” and established best practices that are stable and enduring. The concepts in the TOGAF Fundamental Content are considered to be the universal concepts applicable to the TOGAF framework.

The role of the Extended Guidance in the form of the TOGAF Series Guides is to build upon the general content provided in the TOGAF Fundamental Content by providing guidance for specific topics. Over time the extended guidance will expand as the professional body of knowledge that forms the TOGAF Standard expands with more stable best practice.

About the Digital Edition

This digital edition of the TOGAF Standard will evolve continously as we refresh and expand the contents of the standard.

How to Get Started?

Start reading the introduction part of the TOGAF Fundamental Content below, read the White Paper: An Introduction to the TOGAF® Standard, 10th Edition, read the Pocket Guide, select a specific document on the left navigation panel, or search the standard.

PDF Downloads

You can download the standard in pdf format from The Open Group Library (registration required).

How to Provide Feedback?

You can report a bug or provide feedback on a page by clicking the images shown below.

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Training and Certification

A portfolio of learning paths based on bodies of knowledge derived from the TOGAF Standard, 10th Edition are now available. Read about the TOGAF Learning Paths and certifications.

1. Introduction

The TOGAF Standard is a framework for Enterprise Architecture. It may be used freely by any organization wishing to develop an Enterprise Architecture for use within that organization (see 1.3.1 Conditions of Use).

The TOGAF Standard is developed and maintained by members of The Open Group, working within the Architecture Forum (refer to www.opengroup.org/architecture). The original development of TOGAF Version 1 in 1995 was based on the Technical Architecture Framework for Information Management (TAFIM), developed by the US Department of Defense (DoD). The DoD gave The Open Group explicit permission and encouragement to create Version 1 of the TOGAF Standard by building on the TAFIM, which itself was the result of many years of development effort and many millions of dollars of US Government investment.

Starting from this sound foundation, the members of The Open Group Architecture Forum have developed successive versions of the TOGAF Standard and published each one on The Open Group public website.

This version builds on previous versions of the TOGAF Standard and updates the material available to architecture practitioners to assist them in building a sustainable Enterprise Architecture. Work on White Papers and Guides describing how to integrate and use this standard with other frameworks and architectural styles has highlighted the universal framework parts of the standard, as well as industry, architecture style, and purpose-specific tools, techniques, and guidance. This work is embodied in the TOGAF Library.1

Although all of the TOGAF documentation works together as a whole, it is expected that organizations will customize it during adoption, and deliberately choose some elements, customize some, exclude some, and create others. For example, an organization may wish to adopt the TOGAF metamodel, but elect not to use any of the guidance on how to develop an in-house Technology Architecture because they are heavy consumers of cloud services.

You are recommended to first read the Executive Overview (see 1.1 Executive Overview), which includes an outline of The Open Group understanding of Enterprise Architecture and answers to fundamental questions, such as:

1.1 Executive Overview

This section provides an executive overview of Enterprise Architecture, the basic concepts of what it is (not just another name for IT Architecture), and why it is needed. It provides a summary of the benefits of establishing an Enterprise Architecture and adopting the TOGAF approach to achieve that.

What is an enterprise?

The TOGAF Standard considers an "enterprise" to be any collection of organizations that have common goals.

For example, an enterprise could be:

The term "Enterprise" in the context of "Enterprise Architecture" can be applied to either an entire enterprise, encompassing all of its business activities and capabilities, information, and technology that make up the entire infrastructure and governance of the enterprise, or to one or more specific areas of interest within the enterprise. An enterprise may include partners, suppliers, and customers as well as internal business units. In all cases, the architecture crosses multiple systems, and multiple functional groups within the enterprise.

The enterprise operating model concept is useful to determine the nature and scope of the Enterprise Architecture within an organization. Many organizations may comprise multiple enterprises, and may develop and maintain a number of independent Enterprise Architectures to address each one. These enterprises often have much in common with each other including processes, functions, and their information systems, and there is often great potential for wider gain in the use of a common architecture framework. For example, a common framework can provide a basis for the development of common building blocks and solutions, and a shareable Architecture Repository for the integration and re-use of business models, designs, information, and data.

Why is an Enterprise Architecture needed?

The purpose of Enterprise Architecture is to optimize across the enterprise the often fragmented legacy of processes (both manual and automated) into an integrated environment that is responsive to change and supportive of the delivery of the business strategy.

The effective management and exploitation of information and Digital Transformation are key factors to business success, and indispensable means to achieving competitive advantage. An Enterprise Architecture addresses this need, by providing a strategic context for the evolution and reach of digital capability in response to the constantly changing needs of the business environment.

Furthermore, a good Enterprise Architecture enables you to achieve the right balance between business transformation and continuous operational efficiency. It allows individual business units to innovate safely in their pursuit of evolving business goals and competitive advantage. At the same time, the Enterprise Architecture enables the needs of the organization to be met with an integrated strategy which permits the closest possible synergies across the enterprise and beyond.

And lastly, much of the global privacy legislation demands that processes around personal data are fully documented in a way that can be easily understood by untrained readers — such as the data subjects and judges and lawyers. The penalties for failing to have this can be very significant. Clearly the creation of this basic documentation arises from the changed fundamental considerations and this is now crucial.

What are the benefits of an Enterprise Architecture?

An effective Enterprise Architecture can bring important benefits to the organization. Potential benefits of an Enterprise Architecture include:

What specifically would prompt the development of an Enterprise Architecture?

The reasons for embarking on an Enterprise Architecture review or development are varied, including:

In all of these situations, Enterprise Architecture review or development is needed to manage complexity when change involves multiple systems with multiple inter-dependencies.

Often key people identify areas of change required in order for new business goals to be met. Such people are commonly referred to as the "stakeholders" in the change. The role of the architect is to address their concerns by:

Without the Enterprise Architecture, it is highly unlikely that all the concerns and requirements will be considered and met.

What is an architecture framework?

An architecture framework is a foundational structure, or set of structures, which can be used for developing a broad range of different architectures. It should include a method for describing both a baseline and target state of the enterprise, in terms of a set of building blocks for showing how the building blocks fit together and planning the evolution from baseline to target states.

A framework is typically tailored to meet the specific needs of the organization. Tailoring of the framework should establish a set of tools and a common vocabulary.

Why use the TOGAF Standard as a framework for Enterprise Architecture?

The TOGAF Standard has been developed through the collaborative efforts of the whole community. Using the TOGAF Standard results in Enterprise Architecture that is consistent, reflects the needs of stakeholders, employs best practice, and gives due consideration both to current requirements and the perceived future needs of the business.

Developing and sustaining an Enterprise Architecture is a technically complex process which involves many stakeholders and decision processes in the organization. The TOGAF Standard plays an important role in standardizing and de-risks the architecture development process. The TOGAF Standard provides a best practice framework for adding value, and enables the organization to build workable and economic solutions which address their business issues and needs.

The TOGAF Standard value proposition is to enable organizations to operate in an efficient and effective way using a proven and recognized set of best practices, across the enterprise and in different sectors to address specific business and technology trends.

A key consideration is that guidance provided by the standard is intended to be adapted to address different needs and particular use-cases. That means it can be used to create a sustainable Enterprise Architecture for a broad range of use-cases, including agile enterprises and Digital Transformation.

Who would benefit from using the TOGAF Standard?

Any organization undertaking, or planning to undertake, the development and implementation of an Enterprise Architecture for the support of business transformation will benefit from use of the TOGAF Standard.

Organizations seeking Boundaryless Information FlowTM can use the TOGAF Standard to define and implement the structures and processes to enable access to integrated information within and between enterprises.

Organizations that design and implement Enterprise Architectures using the TOGAF Standard are assured of a design and a procurement specification that can facilitate an open systems implementation, thus enabling the benefits of open systems with reduced risk.

Organizations that need to adapt to face new business and market challenges, to improve value propositions to their customers as part of Digital Transformation.

When should Enterprise Architecture be done?

To get the greatest benefit from Enterprise Architecture it should be done early and throughout the change process to help decision-makers understand the implications of their decisions. Without this understanding, costly mistakes can be made and Enterprise Architecture is not serving it fullest potential. Enterprise Architecture done after decisions are made is merely documentation of those decisions or at best enforcement of those decisions. No insight is gained as to the effect of those decisions which could be far-reaching and perhaps detrimental.

1.2 Structure of this Document

This document introduces the TOGAF Standard and the TOGAF Library, and includes definitions and referenced materials relevant to the individual elements of the Standard.

1.3 Information on Using the TOGAF Standard

1.3.1 Conditions of Use

The TOGAF Standard is freely available for viewing online without a license. Alternatively, it can be downloaded and stored under license, as explained on the TOGAF information website.

In either case, the TOGAF Standard can be used freely by any organization wishing to do so to develop an architecture for use within that organization. No part of it may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, for any other purpose including, but not by way of limitation, any use for commercial gain, without the prior permission of the copyright owners.

1.3.2 How Much Does the TOGAF Standard Cost?

The Open Group is committed to delivering greater business efficiency by bringing together buyers and suppliers of information systems to lower the barriers of integrating new technology across the enterprise. Its goal is to realize the vision of Boundaryless Information Flow.

The TOGAF Standard is a key part of its strategy for achieving this goal, and The Open Group wants it to be taken up and used in practical architecture projects, and the experience from its use fed back to help improve it.

The Open Group therefore publishes it on its public web server, and allows and encourages its reproduction and use free-of-charge by any organization wishing to use it internally to develop an Enterprise Architecture. (There are restrictions on its commercial use, however; see 1.3.1 Conditions of Use .)


Downloads of the TOGAF Standard, including printable PDF files, are available under license from the TOGAF information website (refer to www.opengroup.org/togaf/downloads). The license is free to any organization wishing to use the standard entirely for internal purposes (for example, to develop an Enterprise Architecture for use within that organization).

1.4 Why Join The Open Group?

Organizations wishing to reduce the time, cost, and risk of implementing multi-vendor solutions that integrate within and between enterprises need The Open Group as their key partner.

The Open Group brings together the buyers and suppliers of information systems worldwide, and enables them to work together, both to ensure that IT solutions meet the needs of customers, and to make it easier to integrate IT across the enterprise. The TOGAF Standard is a key enabler in this task.

Yes, the TOGAF Standard itself is freely available. But how much will you spend on developing or updating your Enterprise Architecture? And how much will you spend on procurements based on that architecture? The price of membership of The Open Group is insignificant in comparison with these amounts.

In addition to the general benefits of membership, as a member of The Open Group you will be eligible to participate in The Open Group Architecture Forum, which is the development program within which the TOGAF Standard is evolved, and in which TOGAF users come together to exchange information and feedback.

Members of the Architecture Forum gain:


1. The TOGAF Library provides an online publicly available structured list of Guides, White Papers, and other resources. Refer to TOGAF Library at www.opengroup.org/togaf-library.

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