Property Web Services Workgroup

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Workgroup Summary

This workgroup was charged with developing a set of Web Services designed to promote interoperability and information exchange among systems that service the needs of hotel properties. The workgroup was platform-agnostic, and included active participants using a variety of Microsoft, Java-based, and other toolsets. This workgroup released its first certification specification in February 2007, and most recently updated it in April of 2009; several products are now certified.

Transport Layer: The workgroup created two successive versions of a standardized transport layer for XML messages. The first version, developed in early 2004, specified a SOAP header that handled authentication and a secure transport mechanism. In 2006, the workgroup transitioned to a Web Services Framework, fully consistent with the latest W3C standards. This specification, referred to as HTNG Web Services Framework v2.0, was released in early 2007, and later updated to v2.1.1. It handles full synchronous and asynchronous messaging and is a required element for implementing most HTNG web services specifications.

Web Services: The workgroup has also developed sets of XML services that have been used to exchange customer information and to handle routine hotel operations such as folio posting, guest lookup, digital signage, guest self-service activity booking, back-office interfaces, food and beverage ordering, and coordination of guest itineraries across multiple systems (PMS, dining reservations, spa, golf, activities, etc.). Most of these specifications are available for certification. The Open Data eXchange (ODX) specification also facilitates exchange of flat-file information using the web services transport layer, and enables migration of legacy interfaces to an Enterprise Service Bus.


The Property Web Services Workgroup was dissolved as part of HTNG's 2010 Workgroup Reorganization (see 2010 Workgroup Reorganization Info). Some of its historic teams re-chartered as independent workgroups; others moved to either a maintenance or retired status. Please visit individual workgroup sites below for the most up-to-date information.


Back Office Integration - Focused on integrating back-office systems with various property-based systems. Originally released a specification to handle general ledger transactions; rechartered in 2010 to handle A/P.

Digital Signage - Addressed the interface between catering and event management systems and digital signage systems.

Food & Beverage Ordering - Addressed message specifications for devices to connect to a property's POS system and to manage payment methods for an F&B order.

Guest and Room Status Messaging - Focused on defining messages to provide alerts or updates to systems when a guest’s or room's status has changed, such as to personalize a guestroom device when a guest checks in.

Guest Self Service - Addressed interfaces between hotel-based systems such as PMS and POS, with kiosks and other guest self-service devices.

Identity Compliance Services - Addressed management of user rights across multiple systems.

Kiosk Integration - Focused on interfaces between kiosks and PMS systems; became a fully chartered workgroup in 2010.

Open Data Exchange - Developed a standardized approach for the exchange of unstructured data between systems; re-chartered in 2010 to create a generic query specification.

Protocol and Message Transport - Developed the HTNG Web Services Framework and continues to address new developments and solutions; became a fully chartered workgroup in 2010.

Single Guest Itinerary Team - Focused on improving the interface that enables interconnectivity and exchange between specialized systems that book guest appointments, such as Spa, Golf, Concierge, Dining, Ski, and other activities.

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