Internet Resources Discovery (IRD).ppt

1、T.Sharon-A.Frank,1,Internet Resources Discovery (IRD),Types of Digital Libraries,T.Sharon-A.Frank,Contents,Types of DLs Comparisons Additional Aspects,T.Sharon-A.Frank,Sample list of Digital Libraries,LOC - Library of Congress American Memory (http:/memory.loc.gov/ammem/) NSDL - National Science DL

2、(http:/nsdl.org) IPL - Internet Public Library (http:/www.ipl.org) CDL - California DL (http:/www.cdlib.org) ADL Alexandria DL (http:/www.alexandria.ucsb.edu) BL - British Library (http:/www.bl.uk/) NZDL New Zealand DL (http:/www.nzdl.org/) Einstein Archives Online (http:/www.alberteinstein.info/),T

3、ypes of DLs,T.Sharon-A.Frank,Basic SE (BSE),Meta SE (MSE),Popularity SE (PSE),Stand Alone DL (SDL),Harvested DL (HDL),Federated DL (FDL),Directory (Catalog, Guide, Subject Gateway),Web Repositories Hierarchy,T.Sharon-A.Frank,Types of DLs,Stand-alone Digital Library (SDL) also self-contained, several

4、 collections Federated Digital Library (FDL)also confederated, networked Harvested Digital Library (HDL)also distributed,T.Sharon-A.Frank,Exemplary Digital Libraries,Stand Alone DL (SDL) Library of Congress (LC) and National Digital Library(NDL) Internet Public Library (IPL) Snunit Federated DL (FDL

5、) Networked Computer Science Technical Reference Library (NCSTRL) Online Computer Library Center (OCLC)Harvested DL (HDL) SourceBank (http:/ ArticleC! (http:/ ) Harvest/Katsir, OAI,T.Sharon-A.Frank,Virtual (Symbolic) (VDL)Metadata Oriented,Several SDL (General) Collection,General VDL,Specialty VDL L

6、ibrary Index Weblog List,Real (Physical)Self-contained (SDL)Data-ObjectsOriented,Single SDL (Specialty) Collection,Stand-Alone (SDL),First Generation Digital Libraries,T.Sharon-A.Frank,Stand-alone Digital Library (SDL),A regular DL Usually localized on server/LAN Self-contained material:edited/gener

7、atedscanned/digitizedpurchased Single or Several digital collections,T.Sharon-A.Frank,Federated Digital Library (FDL),Contains many autonomous libraries Usually heterogeneous repositories Connected via a network Forms a virtual library Unified/Transparent user interface The major problem is interope

8、rability,T.Sharon-A.Frank,Harvested Digital Library (HDL),Harvests digital objects, not full DLs. Objects harvested into metadata (protocol was Harvest/SOIF, nowadays OAI). Does not have to contain objects, just metadata/summaries. But has regular DL characteristics.,T.Sharon-A.Frank,SDL vs. HDL,T.S

9、haron-A.Frank,References,Academic Info: Digital Library http:/ Moving to the Electronic Library http:/www.sims.berkeley.edu/courses/is101/s96/elib.html Digital Library Definition (ARL at DL SunSITE) http:/sunsite.berkeley.edu/ARL/definition.html Digital library scopehttp:/www.dlib.org/metrics/public/papers/dig-lib-scope.html What are Digital Libraries http:/www.clir.org/pubs/issues/issues04.html#dlf UIUC DLI Glossary http:/dli.grainger.uiuc.edu/glossary.htm Digital Libraries: A selected Resource Guide http:/www.lita.org/ital/1603_klemperer.htm,