# Content Update

The Hotel Content Database (HCD) is a database containing property information and image links for distribution to online partners through the RateGain ADS (Alternate Distribution Systems) environment and to GDS (Global Distribution Systems) environments. The HCD XML Update Interface includes two methods of updating this data, a batch process, and an XML transaction interface.

 

This document is a reference guide for customers who wish to build applications to use the Hotel Content Database (HCD) Update Interface. This guide will provide the necessary information for updating information currently stored in the HCD, as well as creating new property records and adding new types of property information. This guide describes the message types used to perform inbound processing, the business rules associated with the message types and the interface details for each supported message type.

 

The data stored in HCD will then be delivered to our ADS partners and the GDSs (for subscribers to the ContentHub service). Files and/or messages are transmitted from each participating Supply customer to RateGain to provide their property details, which are then stored in the HCD and subsequently with the ADS partners and in the GDSs.

This document is intended for distribution to RateGain personnel and their customers utilizing the HCD XML Update Interface. Distribution of this document to other parties without the prior consent of RateGain is prohibited.

**Related documents and information**

OpenTravel Alliance Website: <http://www.opentravel.org/>

&#x20;

Electronic Business using eXtensible Markup Language (ebXML) Website: <http://www.ebxml.org/>

&#x20;

Web Services Security (wsse) Website:

<http://www.oasis-open.org/committees/tc_home.php?wg_abbrev=wss>

&#x20;

SOAP Website:

<http://www.w3.org/TR/2003/REC-soap12-part0-20030624/>

&#x20;

Unicode Website:

<http://www.w3.org/TR/unicode-xml>

<br>

HCD OTA Supported Codes spreadsheet (supplied separately) – lists the OpenTravel Alliance codes that are supported by HCD.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://developer.rategain.com/content/content-update.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.