The XML Information set, also termed the infoset, is an abstract data model for most of an XML document and is intended to be used by other XML-related specifications from the W3C.
An information item is similar to a node as used by DOM and XPath. However, the detail of how an XML document is modeled differs from both DOM and XPath.
The XML information set is the newest of the data models specified by the W3C but is viewed as the foundation for many future XML-related specifications produced by the W3C. For example, the infoset is used as a basis for the W3C XML Schema language, together with some augmentation of that infoset to express notions specific to the activity of schema validation.
The fact ...