DD 2.1 Documentation
The RESO Data Dictionary is a common reference for fields and lookups (enumerations) found in RESO-certified data sources. It provides universal guidelines for MLS listing input modules. Standardized terminology prevents implementation errors, eases field mapping and fosters innovation across the real estate industry.
The Data Dictionary is organized in a hierarchy:
Top-level categories such as Property, Member, Office and Media
Logical groupings of related fields within a resource
Individual data elements with names, types and definitions
Enumerations of valid values for fields that accept a controlled list
Proposed additions to the Data Dictionary require the following:
Contact info@reso.org for more information about the contribution process.