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CIECA's XML schemas featured a cascade of include files for incorporating services, messages, code lists, and common/simple type definitions. JsonSchema can resolve references to code lists and type definitions in external files, but schemas are not included within parent schemas in the same way. CIECA's JsonSchema style will continue to gather code lists, and common/simple type definitions in external files to support schemas for individual services/messages.
Schema Building Procedures
Always make sure that you are referencing the property definition.