Semantic Web Tools and Systems
Semantic Web research relies on a number of key methodologies such as knowledge representation languages or reasoning algorithms. As a research community, however, we could not progress based on these methodologies exclusively, but require tools and systems that realize our research results as key technologies for the Semantic Web. There would be no Linked Data without repositories to store them, no Semantic Web applications without application programming interfaces to load and edit ontologies, and no semantics-based user interfaces without reasoners. Consequently, some of these technologies are research enablers in their own rights.
& Janowicz, K.
(2011). Semantic Web Tools and Systems. Semantic Web, 2, 1-2.