1. Advisory Board Meeting  Portland, Oregon  08 November 2000 System Architecture David Maier maier@cse.ogi.edu

2. Advisory Board Meeting  Portland, Oregon  08 November 2000 Infrastructure Digital Library Framework Document Server Digital Object Identifiers Gazetteer

3. Advisory Board Meeting  Portland, Oregon  08 November 2000 Library Collection + Catalogs + Services Basically the same for “real” and digital libraries

4. Advisory Board Meeting  Portland, Oregon  08 November 2000 Sample Architecture User Browser UI gateway Handle System Repos. Collection Index Collection

5. Advisory Board Meeting  Portland, Oregon  08 November 2000 Services and Interfaces Repository serivice: deposit, storage, access Index service: queries to handles and meta-data document format fixed vocabulary fields Collection service: form meaningful groups User interface gateway

6. Advisory Board Meeting  Portland, Oregon  08 November 2000 Which Architecture and Implementation? Have looked at Dienst Both a protocol and implementation There are other proposals Leipzig Document Server Web interface for depositing documents Can handle Dienst protocol

7. Advisory Board Meeting  Portland, Oregon  08 November 2000 Digital Object Identifiers From publishing industry General way to name doucments and other “creations” (e.g. opera score) Different levels of granularity (in theory) document, section, paragraph Issued through a naming authority Can have sub-authorities Associated description with each DOI

8. Advisory Board Meeting  Portland, Oregon  08 November 2000 Key Aspects of DOIs Identifies content, not location Persistent Built on Handles Handle format naming authority/unique local name 10.1045/january99-bearman

9. Advisory Board Meeting  Portland, Oregon  08 November 2000 Alexandria Digital Library New idea on meaning of a document: geographic location it pertains to Makes use of a gazetteer Shannon: river 240 m W Ireland flowing S + W into the Atlantic Salmon st.: D-4,5, map 32

10. Advisory Board Meeting  Portland, Oregon  08 November 2000 Computerized Gazetteer Geographic name Geographic location Type of feature

11. Advisory Board Meeting  Portland, Oregon  08 November 2000 Use of Gazetteer Now: label documents with gazetteer entries Later: link documents to locations by place names they mention