Specific term required. Working on a book about William Holman Hunt inspired the English student James H. Coombs to author an early analysis of systems described by this word. Brian Reid's Scribe language began a split between the procedural and descriptive types of this concept. This is the second word in the acronym of the format of a HTTPRequest object that is paired with asynchronous JavaScript to communicate with web servers. That format, in which data must adhere to a DTD to be considered valid and well-formed, has a name that prefaces this word with ■END■