3.4. Enabling Technology
eXtensible Markup Language (XML) is a tag language, derived from the Standard Generalized Markup Language (SGML) and endorsed by W3C, to describe business data in human-eligible format and is intended to facilitate machine-to-machine or system-to-system communication over the Internet.
The XML data construct can be defined and validated (with XML parsers) by either:
XML 1.0 syntax (for example, Document Type Definitions [DTDs])
Components of an XML Document
Figure 3-9 shows a Foreign Exchange Option trade sold by ABC Buyer Bank with a trade date Jan. 15, 2002. It illustrates the three key components of an XML document (based on FX ...