Version Equivalence Info
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HTNG software (web services) specifications are released semiannually, but not all of the component technical specifications are updated in each cycle.

This table shows, for each certification release, the technical specifications incorporated, and the certification cycle(s) in which each one was originally released, as well as later updates ("Rev."). Links provide direct access to the specifications.

  2007A 2008A 2008B 2009A 2009B 2010A 2010B 2011A 2011B 2012A 2012B 2013A 2013B 2014A 2014B 2015A
Back Office Integration  - New - Rev. - - - - - - - - - - -
Back Office Integration - Travel Agent Commissions  -  -  -  - New - - - - - -
Customer Profile  -  -  - -  - New Rev. Rev. - - Rev.
Digital Signage  - New - - - - - - - Rev. - - - - -
Distribution Content Management  -  - New - - - - - - - - - -
Event Notificatio  -  -  -   New - - - - - - Rev. Rev.
Folio Detail Exchange  -  -  -  -  - New - Rev. - - -
Food & Beverage Orderin  - New - - - - - - - - - - - -
Guest & Room Status Messaging  - New - Rev. - Rev. - - - - - -
Guest Self Service New Rev. Rev. - - - - - Rev. - - - - -
Hosted Payment Capture Systems  -  -  - New - - - - -
Intelligent Guest Room  -  -  -  -  - New Rev. - - Rev.
Kiosk Integration  -  - New Rev. - - - - - Rev. - -
Open Data Exchange New Rev. Rev. - - - - - - - - - - -
Open Data Exchange - Query  -  -  -  - New - - - - - - - -
Payment Systems & Data Security -Data Prox  - New Rev. - - - - - - - - -
Payment Systems & Data Security - Payment Processing  -  - New Rev. - - - - - - - -
Point of Sale  -  -  -  -  -  -  -  -  - New Rev. - Rev. Rev.
Product Distribution - Availability (includes Inventory spec as of 2013B) New Rev. - Rev. Rev. - - - - Rev. - Rev. Rev. - Rev.
Product Distribution - Group   New - - Rev. - Rev. - - - - - Rev. - Rev.
Product Distribution - Rates New Rev. - Rev. Rev. Rev. - - Rev. Rev. Rev. - Rev. Rev. Rev.
Product Distribution - Reservations New Rev. - Rev. Rev. Rev. Rev. - Rev. Rev. Rev. Rev. Rev. Rev. Rev.
Product Distribution - Seamless Shop/Book  - -  - New Rev. - Rev. - Rev. Rev. - Rev. Rev.
Product Distribution - Statistics  - New - Rev. - - - - - - - - Rev. Rev. -
Single Guest Itinera New - Rev. - - - - - - - - - - - -
Virtual Payment Cards  -  -  -  -  -  -  -  -  -  -  -  -  -  -  - New
Web Services Framework New Rev. Rev. - - - - - - - - - - - -