Introduction


This lesson, we learn about Information discovery concerns, the different ways we can find information that is stored in RDF statements.
There is no single method for locating information in the Semantic Web that works in all situations.
Depending upon whether we know exactly what we are searching for and where the data might exist, and if we are aware of how the data is structured, we could discover the answers through navigation, searching, or querying.
Navigation is the simplest form of information discovery, where we have a tool to retrieve and visualize RDF data and, triple by triple, we dereference URIs to locate additional triples with no particular plan or goal in mind.
Searching builds on navigation by not only having a goal but also relying upon more than just our navigation tool to find information manually.
Querying is the final form of information discovery that allows for complex, explicit, and structured questions to be posed, and the resulting information either succeeds or fails to answer those questions. Querying is based on formal syntax and semantics.