Co-Constraints for JSON Content Rules

Document Type Expired Internet-Draft (individual)
Authors Pete Cordell  , Andrew Newton 
Last updated 2016-09-22 (latest revision 2016-03-21)
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JSON Content Rules (JCR) [JCR] provides a powerful, intuitive and concise method for defining the structure of JSON [RFC7159] messages. However, modern JSON usage patterns occasionally mean that JCR alone is not able to capture the required constraints in a satisfactory way. This document describes JCR Co-Constraints (JCRCC) which defines additional JCR directives and annotations that can be added to a JCR ruleset in order to define more detailed constraints on JSON messages.


Pete Cordell (
Andrew Newton (

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