Dynatext

DynaText is an SGML publishing tool. It was introduced in 1990, and was the first system to handle arbitrarily large SGML documents, and to render them according to multiple style-sheets that could be switched at will.

DynaText and its Web sibling DynaWeb won multiple Seybold and other awards [1][2], and there are eleven US Patents related to the DynaText technology: 5,557,722; 5,644,776; 5,708,806; 5,893,109; 5,983,248; 6,055,544; 6,101,511; 6,101,512; 6,105,044; 6,167,409; and 6,546,406.

DynaText was developed by Electronic Book Technologies, Incorporated, of Providence, Rhode Island. EBT was founded by Louis Reynolds, Steven DeRose, Jeffrey Vogel, and Andries van Dam, and was sold to Inso corporation in 1996, when it had about 150 employees.

DynaText heavily influenced stylesheet technologies such as DSSSL and CSS, and XML chairman Jon Bosak cites EBT chief architect Steven DeRose as one of the originators of the notion of well-formedness formalized in XML, as well as DynaText for influencing the design of Web browsers in general [3].

Inso corporation went out of business in 2002.

DynaText accepted SGML as input, and built a binary representation of the structure (similar to DOM for XML, but persistent), as well as a full-text inverted index of the text, elements, and attributes. Customers typically distributed such compiled e-books on CD-ROM or via network servers. Later versions of DynaText could also read SGML on the fly, providing exactly the same interface.

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