OAI-PMH Introduction

den Haag 13.01.2009

OAI-PMH ModelInitial

Data Provider (DP) Expose metadata

Dynamic repository Add-on to Content database Separate repository

Static repository XML files

Service Provider (SP) Harvest metadata

Value-added Services

Search API

OAI-PMH ModelExtended

Aggregator SP exposing metadata = middleware = Hierarchical harvesting

Caching/Mirroring of DPs

Harvest and Cache metadata Filter/Refine Saving efforts for overlaying SP Prefetched records

OAI-PMH Proxy

Layer over DP Firewall

Normalize/Correct/Transform

Preserve provenance

OAI-PMH Tools

Tools/Products/Frameworks Read a lot

Tested some

Made a choice? No

Test more? Yes

Most important? Learn from you

Test site Tools selected because of

Simplicity, 3 of them Well-known, 1