Appendix VI: UC Image Union Catalog Models

System / Purpose / Who Contributes / Database model / Metadata / Image Location / Federate with: / Federation via:
Melvyl / Global Access Portal (for biblio. info)
Discovery – research / UC libraries + select non-UC libraries / Central, physical union db / Collection level—item level possible but needs separate “logical base”;
MARC / Distributed / Other material types;
Other research collections / Z39.50;
OpenURL--or is this integration?
OAI (future?)
OAC / Material type Portal?
Discovery – research / UC special collections, museums + select non-UC organizations / Central physical union db / Collection and item level;
METS (EAD, MARC) / Some central, some distributed / Other EAD collections / OAI
Luna Insight / Material type Portal; Subject Access Portal
Discovery – teaching, study, research;
Manipulation – teaching, presentation / UC libraries +
MOAC + Sliders + UC faculty + licensed resources (AMICO, Saskia) + free resources / Central, physical union db; / Item level;
Various, incl. METS (EAD), VRA Core; has conversion, editing tools / Central (at Luna or customer site) or distributed / Other Insight customers, select licensed collections / Insight
Alexandria / Material type Portal; Discovery/use of geospatial and geo-referenced materials and, more broadly, scientific data. / Data centers, UC and otherwise / Central collection-level discovery service; otherwise, completely distributed system. / Collection-level: ADL; item-level: not specified, anything that is mappable to Dublin Core-like "buckets" / Distributed: each node is responsible for its own content / Other ADL library servers; future: Z39.50 geo, ESRI Metadata server / ADL defined web service protocol (xml over http), JAVA RMI, OAI (by Sept 2003), Z39.50 (future)
UC Image OPAC / Material type Portal
Discovery – research; Persistent access, preservation? / UC libraries + ? / Central for harvested metadata; distributed for creation, management; or option for central management / Item level;
Various incl. MARC, METS, DC, VRA Core / Unknown but probably most distributed? / Other UC image collections (Sliders, faculty, depts, etc.) / May need to support multiple methods, e.g. via OAI, material type portals, global access portal
SearchLight2 / Global Access Portal
Discovery – research / n/a / Distributed; option for central harvested or crawled / Collection and item level, but could be grouped;
Various standards in original sources / Distributed / Licensed, freely available, UC / Z39.50, OAI, http queries, crawling, etc.
eScholarship Repository / Scholarly communication –research; persistent access, preservation? / UC faculty, research institutes / Central physical union db / Collection level (papers can also be considered items); no capacity to handle items w/o a collection unit;
Manual input, mapped to METS / Unknown but probably some central / Other researchers / OAI

Digital Visual Resources PlanningAppendix VI: UC Image Union Catalog Models Page 1