環(huán)太平洋數(shù)字圖書館聯(lián)盟簡稱

1、Digital Discovery Access Methods Task Force ReportPRDLA 2005 HawaiiArthur Chen, Luc Declerck (Chair) Xue Fangyu, Nie Hua, Emily Lin, David Palmer, Assunta Pisani, Peter ZhouTask Force ChargeEvaluate the various technical options identified at the Taiwan 2005 meeting to provide patron access to PRDLA

2、 member digital resources and recommend on how to proceed.Technical options consideredNon-mediated book requestsArticle requesting toolsZ39.50 Gateway toolsCanned Searches toolsMetasearch toolsOAI Service toolsSRB Data GridGoogle ScholarNon-mediatied book requestingProductsIIIs INN-ReachFretwell-Dow

3、nings VDXSirsiDynixs URSAContentAll or subset of members OPACExamplesCircuit * San DiegoSummit * Oregon & WashingtonHKALL * Hong KongNon-mediated book requestingCostsInitial: High (hardware, installation, staff)Ongoing: High (maintenance + shipping across Pacific)ProsSaves staff timePotential for la

4、rge shared collectionsConsPotential for lost, damaged, materialsArticle requesting toolsProductsOCLC WorldcatRAPID ILL (Colorado State University Libraries)OCLC WorldcatHigh initial and ongoing records and holdings maintenance costsHigh per transaction chargeRAPID ILL 60% cheaper, than traditional I

5、LL (OCLC, RLIN, etc.)Quicker, 3.4 days turnaround time borrowingMore exact, 93% fill rateWorks with or without INN-Reach systemIf Inside INN-Reach, patrons can make requests without leaving INN-Reach systemCan be used for print and e-journals, subject to license restrictions see Yale ILL Project Dat

6、abaseExamplesElsevier e-journalsCan send anything, must be printed first & faxedAmerican Chemical Soc e-journalsCan send anything, in any transmission methodArticle requesting toolsHKUs RAPID e-journalsThe Journal of histochemistry and cytochemistryDatastreamJstorBusiness Periodicals OndiscWiley Int

7、erscienceChina Journal Net (CNKI)American Chemical SocietyBlackwell PublishingCompany of BiologistsArticle requesting toolsRAPID PODs (can belong to more than 1)ARL pod (University of OR, HKU)Katrina podPRDLA pod?Costs, each memberUS $9,000 startupUS $8,000 annual maintenanceHoldings scopeMembers ca

8、n choose which titles to includeHoldings statement shows which issuesZ39.50 Gateway toolsProductsMany: III, Ex Libris, Endeavor, open source, etc.ContentLimited to catalog content (usually MARC) BenefitSingle search across all PRDLA member catalogsMember requirement: Z39.50-compliant catalogCostsLow

9、 (could use HKUs installation)Z39.50gateway toolsProsRelatively easy to set upConsFrequent incomplete results, time-outs, and unavailable databasesSearch is slowNot well suited to the web, or heavily firewalled environmentsNot integrated with request serviceCanned Searches toolsProductsMany: Innovat

10、ive, Ex Libris, Endeavor etc.ContentSubsets of catalogsPotential usesCollection Development, Subject areas, etc.Canned Searches toolsCostsInitial: Low (minimal staff effort)Ongoing: Low ProsUseful for subject librariansConsSeparate searches necessary for each member catalogMetasearch toolsProductsII

11、Is MetaFind, Ex Libris MetaLib, Fretwell-Downing ZPortal, etc.ContentDiverse content: including library catalogs, citation databases, full-text databases, digital collections, etc.BenefitSingle search across everythingMember requirementsJoint database license agreementsMetaSearch ToolCostsInitial: h

12、igh (labour done by vendor)Ongoing: high (labour done by vendor)ProsSimple, user-friendly interfaceConsTechnology is immature, protocols are in a state of fluxResults are unreliable unless tool is limited to a discrete number targets Cannot handle special search functions on special databasesOAI Ser

13、vice tools ProductsMany: UMs XPAT, ARC, OAIKepler, OCLCs GWEN, Greenstone, etc.ContentLocal digital collections (scholarly papers, theses, images, sound files, moving images, data files, etc.)BenefitIntegrated discovery and access to members local digital collectionsOAI-compliant PRDLA databasesAcad

14、emia SinicaAcademia Sinica Balanced Corpus of Modern ChineseAustralian National UniversityAustralian National University EPrints2 ArchiveDSpace at The Australian National UniversityThe Chinese University of Hong KongScholarly Information RepositoryHong Kong Baptist UniversityHKBU Theses & Dissertati

15、onsNational University of SingaporeNUS Digital Library of Theses and DissertationsPeking UniversityThe Peking University Ancient Book Digital LibrarySan Diego Supercomputer CenterNational Science Digital LibraryUniversity of California, BerkeleySurvey for California and Other Indian LanguagesUnivers

16、ity of California, San DiegoSIO ArchivesThe University of Hong KongHKU Theses Online (HKUTO)University of OregonDSpace at the University of OregonUniversity of WashingtonDSpace at The University of WashingtonStructural Informatics Group, University of Washington (UW-SIG) Eprint ArchiveOAI Service to

17、olsCostsInitial: low (medium amount of staff labour)Ongoing: low (modest amount of staff labour)ProsComparatively quick & easy to implementCan be used as campus institutional repositoryCan be used to expose collections to other OAI Service Providers as well as Google, Yahoo, etc., or notBasic buildi

18、ng block for future union catalog or metasearch initiativesConsNoneSRB Data GridProducts: SDSCs Storage Resource Broker (SRB)Content: Digital collections (scholarly papers, theses, images, sound files,moving images, data files, etc.)Benefit: Distribute storage, replication, and access to PRDLA membe

19、r digital collections Member requirementsSRB instance or SRB-enabled repository (i.e. DSpace, Fedora) SRB Data GridCost: Initial: High (due to high technical expertise requirements)Ongoing: LowPros: Robust solution for data replication/preservation purposesConsHigh technical expertise requirementsGoogle ScholarProduct: Google ScholarContent: Same as metasearch options, i.e. diverse content, including library catalogs, citation databases, fulltext databases, digital assets, etc.Cost: Low (Medium)MethodsGoogle Crawler or OAI h