1. The Danish National Research Database Which approach: Look at the environment first and the software afterwards or vice versa? Look at the environment – a hybrid environment A hybrid environment calls for a hybrid solution The solution: Distributed searching (Web-Z gateway) Hybrid model for data collection

2. Considerations Larger institutions/suppliers often have CRIS systems of their own Smaller institutions/suppliers often do not The architecture must be integrated with other national initiatives Data feed should to the utmost extent be the reporting that is already done at the institutions Do NOT force present suppliers to change routines unless they want to!

3. Data collection and searching Data collection: Metadata creator/cataloguing module Load routines like the present Harvesting service (Open Archives Initiative) Searching: Access to the present database as well as other databases using Z39.50 The Danish National Research Database becomes a virtual database – a portal

4. Users The Danish National Research Database (Z39.50-gateway with possible value adding) HTTP Z39.50 Local database Catalogue- module Import Export Catalogue- module OAI Harvesting RDB Central database Z39.50 server Local database Catalogue- module OAI server ab c de HTTP or FTP HTTP Local database Catalogue- module Z39 server Local database Catalogue- module Z39 server Other Z-gateways - local or (inter)national Users The national system Localsystems Data feed Z39.50 a.Cataloguing in local system, export on a regular basis to national system b.Cataloguing directly in the national system. c.Cataloguing in local system with OAI server, data collected by the national system - OAI harvester robot d.Cataloguing in local installation of the national system. Data are made available using Z39.50 server (and/or OAI server) e.Cataloguing in local system. Data are made available using the institutions own system including Z39.50 server The Danish National Research Database System Architecture OAI server Legal deposit OAI harvesting HTTP = Part of national system = Part of local system 2001-04-24

5. Key elements in the architecture Data collection – metadata creator Data collection – harvester (OAI) Data collection – present load routine RDB and search engine Distributed searching – Z39.50 protocol Organization: Denmarks Electronic Research Library Project management: Risoe National Laboratory The development project 2000 – 2002? A collaboration between The Technical University of Denmark and Risoe National Laboratory

6. ERGO – if it is still there… Data delivery could be by offering access - not necessarily physical deliveries Data collection by means of upload/harvesting – or no collection at all (distributed searching) ERGO web site becomes a web-Z gateway - a portal ERGO nodes thus acting as targets for harvest or Z39.50 protocol

7. ERGO elements Z39.50 gateway (web-Z gateway) Search engine(s) Metadata creator Harvester (Open Archives Initiative?) Solutions based primarily on open source/freeware. Software configured, maintained and distributed by Cordis team

8. Links Denmarks Electronic Research Library: www.deflink.dk (presently being redesigned) www.deflink.dk The DEF web-Z gateway: www.defkat.dk The Danish National Research Database: www.forskningsdatabase.dk Open Archives Initiative: www.openarchives.org