First public review - ends August 27th
OASIS and the OASIS Open Command and Control (OpenC2) TC are pleased to announce that Open Command and Control (OpenC2) Architecture Specification Version 1.0 is now available for public review and comment. This is the first public review for this specification.
Cyberattacks are increasingly sophisticated, less expensive to execute, dynamic and automated. The provision of cyber defense via statically configured products operating in isolation is untenable. Standardized interfaces, protocols and data models will facilitate the integration of the functional blocks within a system and between systems. Open Command and Control (OpenC2) is a concise and extensible language to enable machine-to-machine communications for purposes of command and control of cyber defense components, subsystems and/or systems in a manner that is agnostic of the underlying products, technologies, transport mechanisms or other aspects of the implementation. A high level overview of OpenC2 featuring insights from the Technical Director of NSA’s Capabilities Directorate can be viewed at https://www.youtube.com/watch?v=kCooyNJoOrU.
This specification describes the abstract architecture of OpenC2 to define a common understanding of the messages and interactions for all bindings and serializations.
The documents and related files are available here:
Open Command and Control (OpenC2) Architecture Specification Version 1.0
Committee Specification Draft 02
20 July 2022
Editable source (Authoritative):
For your convenience, OASIS provides a complete package of the specification document and any related files in ZIP distribution files. You can download the ZIP file at:
How to Provide Feedback
OASIS and the OpenC2 TC value your feedback. We solicit input from developers, users and others, whether OASIS members or not, for the sake of improving the interoperability and quality of our technical work.
The public review starts 29 July 2022 at 00:00 UTC and ends 27 August 2022 at 23:59 UTC.
Comments may be submitted to the TC by any person through the use of the OASIS TC Comment Facility, which can be used by following the instructions on the TC’s “Send A Comment” page (https://www.oasis-open.org/committees/comments/index.php?wg_abbrev=openc2).
Comments submitted by TC non-members for this work and for other work of this TC are publicly archived and can be viewed at:
All comments submitted to OASIS are subject to the OASIS Feedback License, which ensures that the feedback you provide carries the same obligations at least as the obligations of the TC members. In connection with this public review, we call your attention to the OASIS IPR Policy  applicable especially  to the work of this technical committee. All members of the TC should be familiar with this document, which may create obligations regarding the disclosure and availability of a member’s patent, copyright, trademark and license rights that read on an approved OASIS specification.
OASIS invites any persons who know of any such claims to disclose these if they may be essential to the implementation of the above specification, so that notice of them may be posted to the notice page for this TC’s work.
Additional information about the specification and the OpenC2 TC can be found at the TC’s public home page:
Additional information related to this and any previous public reviews can be found in the public review metadata document .
 Public review metadata document: