Dave is an RDF and semantic web developer working as a software architect for Yahoo! in Sunnyvale, CA, USA since October 2005. He has worked on standarising and developing web metadata standards for Dublin Core, RDF and the early work of RDF query with SPARQL, which he named. Dave created the Redland, Raptor and Rasqal RDF open source libraries to implement it all.
Dave has also helped run several web sites such as Planet RDF for Semantic Web Interest Group support activities for over 6 years.