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OASIS TC Open Repository: openc2-ocas

This GitHub public repository ( ) was created at the request of the OASIS Open Command and Control (OpenC2) TC as an OASIS TC Open Repository to support development of open source resources related to Technical Committee work.

While this TC Open Repository remains associated with the sponsor TC, its development priorities, leadership, intellectual property terms, participation rules, and other matters of governance are separate and distinct from the OASIS TC Process and related policies.

All contributions made to this TC Open Repository are subject to open source license terms expressed in the Apache License v 2.0. That license was selected as the declared "Applicable License" when the TC Open Repository was created.

As documented in "Public Participation Invited", contributions to this OASIS TC Open Repository are invited from all parties, whether affiliated with OASIS or not. Participants must have a GitHub account, but no fees or OASIS membership obligations are required. Participation is expected to be consistent with the OASIS TC Open Repository Guidelines and Procedures, the open source LICENSE designated for this particular repository, and the requirement for an Individual Contributor License Agreement that governs intellectual property.

Statement of Purpose

Statement of Purpose for this OASIS TC Open Repository (openc2-ocas) as proposed and approved [bis] by the OpenC2 TC:

The purpose of the OASIS openc2-ocas GitHub repository is to (a) demonstrate how OpenC2 can be developed as an Erlang/OTP application [ ]; (b) maintain a library of prototype implementations; (c) establish a codebase to enable other prototype efforts.

Ocas is a viable simulator for testing OpenC2 code, scenarios and use cases and may be used as a template for developing actual OpenC2 applications (i.e. augment the simulator code to actually perform the security functionality commanded). Erlang is especially suited for concurrent and parallel computing needed for security applications in cloud deployments. Erlang has been used by industry for applications that provide nine 9's or greater of reliability. Erlang scales particularly well for complex network simulations because concurrency and message passing are a fundamental of the language.

The initial codebase is imported from the OpenC2 Forum's Github repository, maintained by Duncan Sparrell.

Additions to Statement of Purpose

Repository Maintainers may include here any clarifications — any additional sections, subsections, and paragraphs that the Maintainer(s) wish to add as descriptive text, reflecting (sub-) project status, milestones, releases, modifications to statement of purpose, etc. The project Maintainers will create and maintain this content on behalf of the participants.

See docs/ for an explanation of this project and the organization of this repository. This repo is currently for an older version of the OpenC2 Language Specification. It is in the process of being updated to the CSPRD02 (4-Apr-2019) of the Language Specification.


TC Open Repository Maintainers are responsible for oversight of this project's community development activities, including evaluation of GitHub pull requests and preserving open source principles of openness and fairness. Maintainers are recognized and trusted experts who serve to implement community goals and consensus design preferences.

Initially, the associated TC members have designated one or more persons to serve as Maintainer(s); subsequently, participating community members may select additional or substitute Maintainers, per consensus agreements.

Current Maintainers of this TC Open Repository


Questions or comments about this TC Open Repository's activities should be composed as GitHub issues or comments. If use of an issue/comment is not possible or appropriate, questions may be directed by email to the Maintainer(s) listed above. Please send general questions about TC Open Repository participation to OASIS Staff at and any specific CLA-related questions to


OASIS TC Open Repository: OpenC2 API Simulator (ocas) is an erlang/OTP application written in Erlang to demonstrate and exercise the OpenC2 specification



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