EA knowledge-base

This is a community-maintained knowledge-base for whole-enterprise architecture.

(The aim had been to maintain it as a fully-open site where anyone could create their own account, and edit as appropriate. Sadly, yet perhaps all too predictably, we were besieged by a small cabal of 'script-kiddies' posting auto-generated garbage, which has forced us to revert to member-only edit. If you're in enterprise-architecture, we do need your views and input: please contact Tom Graves at Tetradian to create an edit-account here.)


Whole-enterprise-architecture is a systematic investigation, review and design of an organisation's overall structures, services and stories, in relation to the broader shared-enterprise(s) and ecosystem(s) in which it operates.

It's a form of enterprise-architecture that connects and integrates all the other domain-oriented architectures within the organisation, such as business-architecture, process-architecture, security-architecture and IT-architecture. Because of this broader enterprise-oriented scope, it is sometimes described as 'real' enterprise-architecture, in contrast to the narrow IT-oriented scope of classic 'enterprise'-architectures such as TOGAF, FEAF and Zachman.


Explore the PageIndex to view all content in this knowledge-base, or perhaps start with one of the following content-categories:

Getting started

This is an open wiki: anyone can read any page, and anyone can register to write, edit or comment.

To write and edit here you'll need to register. Contact Tom Graves at Tetradian to create your user-account.

If you are not sure how a wiki works, check out the Wikka formatting guide, and experiment in the SandBox.
Once you've set up your account, you can double-click on any page or click on the Edit link in the page footer to get started.

(Note: we aim to keep this wiki as open as practicable, yet are also aware of the risks of misuse by spamming and 'flame-wars' and the like. Please keep to the overall topic of enterprise-architecture and related themes, and respect the contributions of others. Posts and comments that do not relate to these topics, or are abusive of others, may be deleted, and the respective user-accounts closed.)


The primary language for this knowledge-base is English.

Please do feel free to include definitions or translations in other language, either on the same page or in other pages. [Note that at present this wiki-framework only supports UTF-8 (English/Western-Europe) script.]

In particular, some key concepts indicated by English-language terms such as 'enterprise' may not have direct equivalents in other languages or cultures, and may need a lengthier explanation to enable conceptual-translation. We would really appreciate any help you may be able to offer in this aspect of internationalisation of whole-enterprise architecture.

Some useful pages

You will find more useful pages in the Wiki category or in the PageIndex.
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