A demonstration of Gruff, a freely available graphical triple-store browser that attempts to make data retrieval more pleasant and powerful with a variety of tools for laying out cyclical graphs, displaying tables of properties, managing queries, and building queries as visual diagrams. Once you've created a query diagram, Gruff will generate either SPARQL or Prolog code for the query.
Keywords: Prolog, Gruff, Triple store, SPARQL
Author: Aasman, Jan
Date created: 2013-01-23 07:00:00.000
Time required: P35M
Educational use: professionalDevelopment
Educational audience: professional
Interactivity type: expositive
- Reads and understands high-level descriptions of the classes and properties of a dataset in order to write queries.
- Understands that a SPARQL query matches an RDF graph against a pattern of triples with fixed and variable values.
- Uses available tools, servers, and endpoints to issue queries against a dataset.