Michael Day is a Research Officer at UKOLN, based at the University of Bath (United Kingdom). Since joining UKOLN in 1996, he has worked on a range of metadata-related research projects, which have mostly concerned the development of Internet subject gateways, interoperability, and digital preservation. He led UKOLN's involvement in the Cedars (CURL Exemplars in Digital Archives) project, contributed to the development of its preservation metadata specification, and produced the Cedars Guide to Preservation Metadata (2002). He was also a member of the international working group on preservation metadata commissioned by the Research Libraries Group and OCLC Online Computer Library Center that produced A Metadata Framework to Support the Preservation of Digital Objects (2002). His more recent projects have included a feasibility study of Web-archiving, undertaken on behalf of the Joint Information Systems Committee and the library of the Wellcome Trust.