This document is The Open Group Open Agile Architecture™ standard. The objective of this document is to cover both the Digital Transformation of the enterprise, together with the Agile Transformation of the enterprise.


This documents covers both the Digital Transformation and the Agile Transformation of the enterprise. It is divided into two parts:

  • Part 1: The O-AA Core covers the fundamental concepts of the framework and introduces its structure before explaining why the enterprise needs to conduct a dual Digital and Agile Transformation, thus establishing the foundation of the Agile Architecture Body of Knowledge

  • Part 2: The O-AA Building Blocks develops the topics introduced in Part 1 in greater detail, including chapters on topics such as Agile strategy, Agile organization, and software architecture

    It includes content from the perspectives of what the enterprise does, such as experience design, journey mapping, and what the enterprise is, such as product architecture, and operations architecture.


Refer to The Open Group website for conformance requirements for this document.

Normative References



For the purposes of this document, the following terminology definitions apply:


Describes a possible feature or behavior available to the user or application.


Describes a feature or behavior that is optional. To avoid ambiguity, the opposite of “may” is expressed as “need not”, instead of “may not”.


Describes a feature or behavior that is a requirement. To avoid ambiguity, do not use “must” as an alternative to “shall”.

Shall not

Describes a feature or behavior that is an absolute prohibition.


Describes a feature or behavior that is recommended but not required.


Same meaning as “shall”; “shall” is the preferred term.

Future Directions

It is expected that this document will need to be revised from time to time to remain current with both practice and technology.