Profium Metadata Server supports OAI-PMH metadata harvesting interface from version 4.6.2 onwards.

This enables the exposure of stored metadata through a standardized API. Several repositories may be linked together to form one large metadata repository.

Data providers utilizing OAI-PMH-protocol keep data repositories offering structured metadata. Data is harvested with OAI-PMH service requests over standard HTTP. Responses are sent in XML. The format of the offered metadata depends on application area, it can be for example Dublin Core, IEEE LOM for learning material or MARC for library metadata. Harvesting of metadata is done periodically, for example once a day. Compared to real-time harvesting the OAI-PMH is lighter to implement and the protocol is expandable.

OAI-PMH protocol is used especially in sharing scientific, museum and library metadata and collections. Data providers offer for example scientific data and learning materials.

About OAI and OAI-PMH

The Open Archives Initiative develops and promotes interoperability Standards that aim to facilitate the efficient dissemination of content. The Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH) is a low-barrier application-independent protocol for harvesting and sharing of digital metadata.

About Metadata Server

Profium Metadata Server provides an effective way to manage and distribute rich digital content by leveraging Semantic Web technologies. The system collects data coming from multiple sources in diverse formats, and organizes it in a centralized database. By exploiting semantic technologies, the system lets the user access the data based on its meaning rather than search word occurrence. Thanks to metadata describing the relationships between content objects, a piece of information is now found by using a headword that is not part of the categorization.

About Profium

Profium develops and markets content management systems based on Semantic Web technologies. Profium’s customers include public sector organizations, media companies, telecom operators and news agencies. Profium is a member of W3C.