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NIST, in collaboration with the industry, is developing the Open Security Controls Assessment Language (OSCAL), a set of hierarchical, formatted, XML- JSON- and YAML-based formats that provide a standardized representation for different categories of security information pertaining to the publication, implementation, and assessment of security controls.
The OSCAL website provides an overview of the OSCAL project, including tutorials, concepts, references, downloads, and much more.
OSCAL is organized in a series of layers that each provides a set of models.
A model represents an information structure supporting a specific operational purpose or concept.
Each model is comprised of information structures that form an information model for each OSCAL model. This information model is then bound to multiple serialization formats (i.e., XML, JSON, YAML), which represent a concrete data model. Thus, a data model defines how to represent an OSCAL information model in a serialized format. While the syntax of each format differs, all formats for a given model represent the same set of information or information model. In this way, OSCAL content expressed in one of the supported formats ( XML, JSON, or YAML) can be translated into any of the other supported formats without data loss.
The OSCAL layers and models are:
The release state of each model, along with download links for the latest versions of XML and JSON schema for each model are provided in the table, below. YAML is also supported through conversion between JSON and YAML. Since YAML is a superset of JSON, some YAML tooling allows JSON schema to be used for YAML validation. In this way, the provided JSON schema supports both JSON and YAML.
|Control||Catalog||Released||XML, JSON, YAML||XML, JSON/YAML|
|Control||Profile||Released||XML, JSON, YAML||XML, JSON/YAML|
|Implementation||Component Definition||Released||XML, JSON, YAML||XML, JSON/YAML|
|Implementation||System Security Plan||Released||XML, JSON, YAML||XML, JSON/YAML|
|Assessment||Assessment Plan||Released||XML, JSON, YAML||XML, JSON/YAML|
|Assessment||Assessment Results||Released||XML, JSON, YAML||XML, JSON/YAML|
|Assessment||Plan of Action and Milestones||Released||XML, JSON, YAML||XML, JSON/YAML|
The OSCAL GitHub repository holds the actual OSCAL schemas, examples, documentation source files, and other resources. The NIST team welcomes public contributions to this project. If you are interested in contributing, please review the contributor documentation for ideas and information on how to get started.
NIST also maintains several public GitHub repositories associated with the OSCAL project:
OSCAL content maintained by NIST:
OSCAL tools and libraries:
The NIST team welcomes public contributions to this project. If you are interested in contributing, please review the contributor documentation for ideas and information on how to get started.
The NIST OSCAL team is hosting several types of events:
The NIST OSCAL team hosts meetings with the OSCAL community on different topics:
We encourage you to attend these meetings as a way to keep up-to-date on and contribute to the development of OSCAL.
The NIST OSCAL Team has a public calendar for the community to keep current with the meetings above and other public events hosted by the team.
You can access the web version of this calendar by clicking this link or configure your calendar application with this iCalendar (ICS) file.
Security and Privacy: assurance, audit & accountability, controls assessment, risk assessment, security automation, system authorization, systems security engineering
Technologies: cloud & virtualization