3 Definitions and abbreviations

26.1423GPPDynamic and Interactive Multimedia Scenes (DIMS)Release 17TS

3.1 Definitions

For the purposes of the present document, the following terms and definitions apply:

DIMS Scene: an SVG scene, which may include extensions, and may be updated over time

DIMS Scene Commands: a set of one or more commands to modify the state of a DIMS Scene

DIMS Unit: the basic unit of transport, processing, and compression, of DIMS content

New Scene: a complete scene (containing an "svg" element), suitable for starting a session or completely replacing the current scene in a session
(Functions very similarly to an I-frame in video)

Normal DIMS Unit: DIMS Units processed when processing a stream (cf. Redundant DIMS Unit)

Primary Stream: a stream which defines the complete scene tree, i.e. in which all random access points are, or build, a complete DIMS Scene

Redundant DIMS Unit: DIMS Units which supply a redundant ‘summary’ of the stream, and which can be used for random access, tune-in, or error recovery (cf. Normal DIMS Unit)

Scene Update: a set of differences that make changes to the scene in the current session
(Similar to a P-frame in video)

Secondary Stream: a stream which manages only a portion of the scene tree

3.2 Abbreviations

For the purposes of the present document, the following abbreviations apply:

API Application Program Interface

AVP Audio/Video Profile


DIMS Dynamic and Interactive Multimedia Scenes

DOM Document Object Model

FLUTE File deLivery over Unidirectional Transport

HTTP Hyper Text Transfer Protocol

IANA Internet Assigned Numbers Authority

ID IDentifier

LASeR Lightweight Application Scene Representation

MIME Multipurpose Internet Mail Extensions

MMS Multimedia Messaging Service

MTU Maximum Transmission Unit

PSS Packet switched Streaming Service

RAP Random Access Point

RTP Real-Time transport Protocol

RTSP Real Time Streaming Protocol

SDP Session Description Protocol

SMIL Synchronized Multimedia Integration Language

SVG Scalable Vector Graphics

TCP Transmission Control Protocol

uDOM microDOM

UDP User Datagram Protocol

UE User Equipment

URL Uniform Resource Locator

URN Uniform Resource Name

W3C World Wide Web Consortium

XHTML eXtensible HyperText Markup Language

XML eXtensible Markup Language