Materials Science Registry Will propose RDA Materials Science WG Define minimum/modest metadata extensions to Dublin Core to enable resource discovery across materials sciences Deliverable: document with metadata definitions Will seek organizations to do pilot implementations OAI-PMH for harvesting and synchronizing metadata records Will present this plan at RDA Plenary 5, Materials Science Interest Group Action: Bob, Laura, Jim Warren to coordinate (Laura and Jim co-chair the RDA Materials Science IG)

Leveraging HCLS Dataset Descriptions Exercise: format a NIST Materials Repository dataset record into Dataset Description  Used JSON-LD format  Mapped metadata into DD terms  Reviewed MUSTs, SHOULDs  Because JSON will be used to send metadata records to data.gov, conversion the DD/JSON-LD is trivial  Data.gov's JSON format defines its own vocabulary that allows for easy inclusion into DD/JSON-LD record John W. also built a HCLS JSON-LD example for a Protein DataBank entry

Potential Next Steps Simple Dataset Discovery Demonstration  Convert a large number of records, load into triple-store  Show basic dataset discovery via SPARQL queries Show value of Linked Data Concept  Try relating NIST Materials Datasets to other linkable data; e.g. Chemical data in Wikipedia (via DBpedia)  Demonstrate application of Linked Data Platform (W3C Rec) describing standard services for access to JSON-LD descriptions. Demonstrate linking to repository-specific information or tools  Explore how we might guide consumers to specialized tools that can leverage community/repository-specific knowledge