This directory contains the OSCAL schemas and related validation tools. The directory contains both XML and JSON representations for OSCAL. The structure and contents of the directory are as follows:

• json: This directory contains the JSON representations for OSCAL, which include catalogs, profiles, and experimental items (frameworks, worksheets).
• xml: This directory contains XML representations for OSCAL, which include catalogs, profiles, and declarations. The directory also has Schematron content, temp file XSDs, and the maintenance versions of schema files.