The Open Group

The Open Group is a global consortium that enables the achievement of business objectives through technology standards. Our diverse membership of more than 800 organizations includes customers, systems and solutions suppliers, tools vendors, integrators, academics, and consultants across multiple industries.

The mission of The Open Group is to drive the creation of Boundaryless Information Flow™ achieved by:

  • Working with customers to capture, understand, and address current and emerging requirements, establish policies, and share best practices

  • Working with suppliers, consortia, and standards bodies to develop consensus and facilitate interoperability, to evolve and integrate specifications and open source technologies

  • Offering a comprehensive set of services to enhance the operational efficiency of consortia

  • Developing and operating the industry’s premier certification service and encouraging procurement of certified products

Further information on The Open Group is available at

The Open Group publishes a wide range of technical documentation, most of which is focused on development of Standards and Guides, but which also includes white papers, technical studies, certification and testing documentation, and business titles. Full details and a catalog are available at

This Document

This document is The Open Group Open Agile Architecture™ Standard, also known as The Open Group O-AA™ Standard. It has been developed and approved by The Open Group.

This document follows a modular structure and is organized in the following parts:

Examples and case studies are provided as illustrations to foster understanding of the standard. Examples and case studies are not a normative part of the standard and therefore do not include requirements.

The target audience for this document includes:

  • Agilists who need to understand the importance of architecture when shifting toward an Agile at scale model, and who want to learn architecture skills

  • Enterprise Architects, solution architects, security architects, and software architects who want to stay relevant in an Agile at scale world and who need to learn new architecture skills for the digital age

  • Business managers and executives who need to learn the importance of the architecture discipline, and who need to influence architecture decisions