Web services emerged in the late 1990s as a way to access specific pieces of remote functionality, building on the standards-driven stability brought by the universal protocol that HTTP was readily becoming. Interestingly, the Web itself has drastically changed since. During an era of unprecedented centralization, almost all of our data relocated to remote systems, which appointed Web APIs as the exclusive gateways to our digital assets. While the legal and socio-economic limitations of such ...| ruben.verborgh.org
SPARQL Query Language for RDF| www.w3.org
What is ontology? An ontology is a formal system for modeling concepts and their relationships. Unlike relational database systems, which are essentially interconnected tables, ontologies put a premium on the relationships between concepts by storing the information in a graph database, or triplestore. (The following examples use data derived from PLOS, which makes all of its Open Access data and content available.) Relational databases are good at representing tabular data for one-to-one rel...| Boxes and Arrows