Texis is the core technology, encompassing the database and search engine capabilities.
Texis Web Script also is known as Vortex. This is an application development (scripting) tool set. It is bundled with Texis. Texis Web Script is a superset of HTML, with extensions for passing calls to the Texis database. Returned data is dynamically marked up, normally with HTML but optionally with JavaScript or any other markup language. Texis applications may alternately be created with a variety of other technologies.
Webinator is an application of Texis. The Webinator crawler (dowalk) extracts the content of web pages and stores each as a record in a Texis database. The database thus becomes a search engine for the spidered pages. It can be queried through normal Texis SQL SELECT... LIKE statements, but a generic web interface also is provided. Webinator is given out as an example Texis application, but under conditions defined by its acceptable-use policy (see license addendum), it may be used for indexing a web site(s) without purchasing a full Texis license.
The Search Appliance also is based on Texis. It encompasses the features of Webinator, with some additional capabilities such as the ability to crawl file systems and respect document permission settings. The Appliance is created to be a "turn-key" solution, so that the customer does not need to install or configure software or operating system features. The Search Appliance is designed to be administered by a business user, as opposed to a technical user.