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Topic: Greenstonec. Indexing/searching: Lucened. Database system: PostgreSQL, JDBCe. CNRI Handle Systemf. Jena (RDF history system)g. Java, JSP, Servletsh. JUnit (testing) and Log4j(logging)1. Overviewa. It was developed and distributed as an international cooperative effortestablished in 2000 by the University of Waikato with UNESCO andHuman Info NGO, ―New Zealand Digital Library Project.‖b. It helps the universities, libraries and public service institutions build theirown digital libraries.c. It is a suite of software that has ability to build new digital librarycollections and provide services for them.d. Open source under General Public License (GPL)e. A list of systems using Greenstone is at:http://www.greenstone.org/examplesf. Or visit Oxford Digital Library at http://www2.odl.ox.ac.uk/gsdl/cgibin/library/for a specific example2. Featuresa. Installation of Greenstone digital library (GSDL)i. It runs on Windows, Unix/Linux, and Mac OS/X. It can beinstalled easily by using the ready-to-use binaries which areincluded in the distribution (but some functionality is limited).ii. It might be installed on a laptop for personal use (built-in webserver), or run on the main web server (Apache or Windows IIS).b. Collection buildingi. It can harvest documents over OAI-PMH to include them in acollectionii. Full text tagging is supported for hierarchical document browsingiii. Automatic text extraction and indexing are providediv. Data compression is supportedv. Metadata1. Automatic extraction of simple metadata2. Explicit metadata via classifiers3. Used for browsing and searchingvi. Multiple languages supported via Unicodec. Browse and search providedi. Full text searchii. Metadata field searchiii. Either Boolean or ranked (when indexed with MG indexer)iv. Search history, search term highlighting, etc.d. Presentation
i. Search results formatting availableii. Homepage customization availablee. Collection administrationi. Adding new documents (batch operation)ii. Usage monitoringiii. Securityf. Interoperabilityi. Any Greenstone collection can be exported to DSpaceii. Any DSpace collection can be imported into Greenstoneiii. Any collection can be exported to METS (in the Greenstone METSProfile) and Greenstone can ingest documents in METS formg. Customizable, extensiblei. New document and metadata formats can be accommodated bywriting ‗plug-ins‘ in Perlii. New metadata browsing structures can be implemented by writing‗classifiers.‘iii. User interface can be customized using ‗macros‘ written in asimple macro languageiv. CORBA protocol allows agents (e.g., written in Java) to use all thefacilities associated with document collections3. Architecturea. Receptionisti. Provide user interfaceii. User input acceptediii. Page generationiv. Send to appropriate collection serverb. Collection serveri. Collection content managementii. Search/filter informationiii. Return resultsiv. Handle multiple collectionsc. Metadata supplied by communities4. Content typesa. Textb. Multimedia (image, audio, video)5. Standardsa. Dublin Core metadata for digital itemsb. Z39.50 client-server protocol for searching and retrieving informationfrom remote computer databases.c. Support for OAI-PMH both as a client and a serverd. Unicode for multiple language support6. Technologies useda. Greenstone runs on all versions of Windows and Unix/Linux and Mac OS-X.b. Apache HTTP server
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