The relational model, as proposed by Codd, contained the concept of relations as tables composed of tuples of single valued attributes taken from a domain. In most of the early lit...
BPQL is a novel query language for querying business process specifications, introduced recently in [5, 6]. It is based on an intuitive business processes as rewriting systems, an...
Semistructured graph-based databases have been proposed as well-suited stores for World-Wide Web data. Yet so far, languages for querying such data are too complex for casual Web ...