MISMO Version 3.6 Reference Model
MISMO is seeking public comment on an updated MISMO Version 3.6 Reference Model package. The 60-day public comment period will run through April 12, 2025.
The new model includes a corresponding YAML file set that conforms to the OpenAPI specification; the logical data dictionary (LDD) which provides a business centric view of the model; and the MISMO SMART Doc® standards which provide formats for electronic formatting of documents; and more.
The Version 3.6 MISMO Reference Model package includes:
- Addition of the Enhanced Logical Data Dictionary (ELDD)
- Addition of the MISMO Unique Identifier (ID) to Various Artifacts
- Addition of the Unique ID Matrix
- Addition of YAML files
- Addition of JSON Schema files
- Updates to the XML Schema, Logical Data Dictionary (LDD) & Version Compare Report
What It Includes
Included in Version 3.6 of the MISMO Reference Model are updates and enhancements to support the:
- GSEs’ updated residential appraisal data exchange, Uniform Appraisal Dataset (UAD®);
- Private Label RMBS rating agency asset valuation data exchange for faster, more efficient, and more accurate due diligence necessary for securitizing private label residential mortgages;
- Exchange of closing instructions, improving communications and avoiding delays during closing between the lenders and closing agents;
- Ability to electronically verify that data is consistent with information presented in a document, such as the loan application, and that the data has not been tampered with putting trust into the data through the Version 3 Verifiable Profile SMART Doc® standard;
- Enhancements to the MISMO API Toolkit, leveraging MISMO’s initiative to develop standards for consumer transactions;
- FIPS Code API that returns loan limits based on Zip Code of the subject property address;
- New document data mappings for several industry forms including the VA Form 1880, Adverse Action, 4506T, and 4506C; and
- Maintenance changes to add, change, and deprecate data points, enumerated values, containers, as appropriate.
Access Information for Members
MISMO Members can access the Member Only version of the reference model & supporting components in the Resource Library housed here on MISMO's Collaboration Site, "MISMO Connect".
The member version of the resource includes:
- XML Schema
- Enhanced Logical Data Dictionary (ELDD) with Unique IDs
- YAML Files
- Unique ID Matrix
- Version Comparison Report
- Release Notes
Access Information for Non-Members
Non-Members can access the reference model & supporting components listed below here:
- XML Schema
- Logical Data Dictionary (LDD)
- Release Notes