Mars Rover, © Prostep ivip Association
The first release of the new Content Information Type Specification (CITS) for 3D Product Model Data (CITS 3DPM) is available on the DILCIS Board website together with guidelines and METS profiles. It can also be found on the DILCIS Board Github site together with an example package based on a 3D model of a build-it-yourself Mars Rover project from the Prostep ivip Association.
Content Information Type Specifications (CITS) build on the common and package eArchiving specifications to provide specific requirements and guidance for the creation of conformant, interoperable packages for particular information types. The new CITS 3DPM for product model data (for example, Computer Aided Design, Product Structure, Product Data Management) is based on existing international standards, namely STEP (ISO 10303) and LOTAR (NAS/EN9300) and supports use cases within the engineering and product design domains. The specification shows how additional information required to support these standards is accommodated in eArchiving packages, in particular focusing on the key issues of authenticity through validation, verification and digital signatures. Specifically, guidance is given on how to use the PREMIS standard to record evidence of authentication in line with existing eArchiving rules for the use of PREMIS within the common specification for Preservation Metadata.
The specification is accompanied by a guideline (primer) that describes the 3DPM CITS, providing background and contextual information to aid comprehension. Examples of application of the specification will be added to the guideline as they become available. METS profiles for root and representation are also included.
Feedback on the new CITS is welcomed and issues can be raised in the Github repository