The Interactive Television Publishing System (ITPS) offers a simple
way to produce ATVEF-A compliant ETV features. At the heart of the
system is a database that separates form (in this case,
device-specific markup code) from content (text and images appropriate
to show segments). Database content is published to HTML via Perl
using device-specific modules. A handful of additional static HTML
pages, such as the search form, make up the remainder of the code
required to support a particular client device. Devices are routed to
appropriate pages via a "sniffer" page, implemented using the XSSI
syntax available in Apache 1.3 or higher.
