This is the official community gathering place and information resource for the UBL OASIS Standard. UBL defines a royalty-free library of standard electronic XML business documents such as purchase orders and invoices. This is a community-driven site, and the public is encouraged to contribute content.
XPath 2.0 is an expression language that allows the processing of values conforming to the data model defined in [XQuery/XPath Data Model (XDM)]. The data model provides a tree representation of XML documents as well as atomic values such as integers, str
This document is written for readers who want a first impression of the capabilities of OWL. It provides an introduction to OWL by informally describing the features of each of the sublanguages of OWL.