linked-data

Via the Linked Data Service, you can search the inventory of the Mannheim University Library, similar to our Online Catalog.

The difference is, that each element of the inventory is assigned a world-wide unique URI that can be used to access the bibliographic information of that element.

Additionally, it is possible to access this data in a machine-readable format and use it in own appllications. For more details, please refer to our documentation.

The Mannheim University Library aims for publishing as much bibliographic data as possible under a as free as possible license.

The catalog data of the Mannheim University Library can be used as open data under the CC0 license. The datasets will be marked shortly, additionally there will be the possibility to download the raw data and the RDF version.

The same is true for the catalog data of the university libaries of Tübingen and Konstanz, which can be accessed here as well, as all data from the SWB is currently loaded.

We also loaded the data of the USB Köln, which are available under the CC0 license. The processed data is provided also under the CC0 license, that means all triple that have a subject URI within the range of <http://data.bib.uni-mannheim.de/data/hbz/…>.

All other data from SWB and HeBIS is provided for demonstration purposes only. We can not give you a license for the use of the data, please ask the BSZ or HeBIS if you have any further questions.

You see, the use of data can be quite complicated, if different licenses are used. How to provide such licensing information together with the data is therefore very interesting and subject of the DC-Provenance task group of the Dublin Core Metadata Initiative, in which we are taking part.

Best compatibility is reached, if the data is provided without any restrictions, like by means of the CC0 license.

Linked Data and Open Data are two different aspects, hardly related in the first place. Linked Data describes the technical aspect of providing data in RDF and thus making them embeddable in linked data applications. Open Data means that data - in arbitrary formats - is made available under a free license and usable for others. Often, these two aspects are mixed and referred to as Linked Open Data.

As said in the above response about the license, we aim for free data. As university library, however, we can only decide for our own data, which consequently is provided as open data.

With this service, we are concerned about the technical aspects of linked data and we want to try different things with it and experiment with this technology.

However, the presentation of the data is could definitely be improved further, so we assume that there is no serious demand for a use in a production system at this point of time.

Our data is available here (MARC21): https://wiki.bsz-bw.de/doku.php?id=v-team:daten:openaccess:start

Data of HBZ libraries can be found here: https://wiki1.hbz-nrw.de/display/SEM/Aktuelle+Open-Data-Exporte