1.4 Relationship to Other Protocols
DTAG is a UPnP service over SOAP/HTTP as shown in the following diagram:

Figure 2: Relationship of DTAG to other protocols
DTAG is built on UPnP architecture version 1.0 [UPNPARCH1] and version 1.1 [UPNPARCH1.1]. For the purposes of this specification, descriptions of the XML and SOAP schema are provided via references to UPnP architecture version 1.1 [UPNPARCH1.1].