Abstrakt
The publication of data as Linked Open Data (LOD) gains traction. There are lots of different datasets published, more vocabularies are becoming W3C Recommendations and with the introduction of DCAT-AP v1.1 and the emergence of the European data portal and a multitude of national open data portals, lots of datasets are discoverable and accessible using their DCAT-AP metadata in RDF.
Yet, the consumption of LOD is lacking in comfort and availability of tools that would exploit the benefits of LOD and allow users to discover, access, integrate and reuse LOD easily, as promised by the promoters of LOD and supposedly paid by the additional effort put into the 5-star data publication by the publishers. Compared to the consumption of 3-star CSV and XML files, the consumption of LOD is still quite complicated and the LOD benefits are not exploited enough nor visible enough to justify the effort for many publishers.
In this paper we identify 40 requirements which a Linked Data Consumption Platform (LDCP) should satisfy in order to be able to exploit the LOD benefits in a way that would ease the LOD consumption and justify the additional effort put into LOD publication. We survey 8 relevant and currently available tools based on their coverage of the identified requirements.