Glossary Item Box

Government Gateway 2.2.0 (MR-01) ISV Developer Help (Doc Version 06/03/08) | Send comments on this topic.

# Document Submission Protocol

The Document Submission Protocol (DSP) routes business transactions (e.g. Self assessment tax forms) submitted from either a Department Portal (e.g. the HMRC Online service Web site) or directly from an ISV application, through the Gateway, to the appropriate Department (back-end) system and retrieves the corresponding response.

# GovTalk Protocol

DSP uses the GovTalk Message Envelope to encapsulate business transaction documents. The full description of the GovTalk 2.0 Envelope schema is available at http://www.govtalk.gov.uk/schemasstandards/schemalibrary_list.asp?subjects=11.

GovTalk documents are XML formatted and use the UTF-8 encoding standard. Messages are transported across the network using the Hypertext Transport Protocol (HTTP). Portals, ISV applications and Departments (DIS) must be capable of generating HTTP 1.1 POST requests and receiving and interpreting HTTP 1.1 response messages.

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