Content Information Type Specification for 3D Heritage Model data (CITS 3D HM)
Opening date: April 15, 2026
Closing date: May 29, 2026
Abstract
The Content Information Type Specification for 3D Heritage Model data (CITS 3D HM) is designed to be used for the transfer to archives as well as for records exchange between different organisations and repositories of 3D cultural heritage model data, produced through any method and recorded in any format, such as:
- point cloud models (for example, by photogrammetry, laser scanning, structured light);
- CAD-based models, BIM and heritage building information models, HBIM);
- volumetric models (computer tomography);
- GIS models;
- procedural modelling (reconstructions).
This specification is supported by METS profiles for the Root and Representation METS files, an example package and a Guideline document.
This CITS was produced as part of the eArchiving procurement funded by the European Commission and in collaboration with the eArchiving 3D working group which included the Technical Coordinator and members from the 4CH project, Professor Franco Niccolucci of SME PRISMA, Italy, and the UNESCO Chair on Digital Cultural Heritage and its EU Project ERA-Chair Mnemosyne project, a European Commission DCH Coordination and Support Action to produce a robust workflow and pipeline for producing and preserving DCH material.
If you would like to give suggestions on the documents, please add these as comments in your downloaded version of the pdf documents and upload these in the designated area.
Documents
pdfs for specification and guideline: https://3dhm.openpreservation.org/pdf/
html version of the specification: https://3dhm.openpreservation.org/
html version of the guideline: https://3dhm.openpreservation.org/guidelines/
mets profiles: https://3dhm.openpreservation.org/profile/
Example package: https://3dhm.openpreservation.org/examples/
The questions we want you to answer in your feedback are the following
- Do you think that the CITS is useful?
- Are there any requirements which you think are missing? If yes, please list them and explain.
- Are there any requirements which you think are not relevant? If yes, please list them and explain.
- Are there any requirements which you think are too ambitious? If yes, please list them and explain.
- Are there any requirements which you think are not ambitious enough? If yes, please list them and explain.
- Do you disagree with any of the cardinality or levels? If yes, please list them and explain.
- Do you think that the example package is useful?
- You can provide a comment on the example package.
- Is there anything else you would like to see in the repository?
- Can you aid us with further examples?
- Do you have any further comments regarding CITS 3DHM?
Your feedback can be entered here: https://ec.europa.eu/eusurvey/runner/290a36f2-42fc-b575-7334-cb641e6cef32