The WG System and Transport
and WG Content Referencing and Location were merged at the
17th meeting in
Montreal.
The new WG System,
Transport and Content Referencing is responsible for the total architecture and
consistency of the TV-Anytime System. The basic goal of the group is to ensure
that working TV-Anytime systems can be build using the TV-Anytime tools.
The group uses two means to achieve that goal:
- Technical Plenary (TP): The group prepares and hosts the TP of the
TV-Anytime Forum where all the technical working groups meet and discuss the
major cross group and hot issues.
- TV-Anytime Forum technical reports that describe possible systems.
These documents are the ‘white papers’ of the TV-Anytime Forum and
identify, next to the behaviour of TV-Anytime tools in a system, also potential
other tools that are needed to buid a working system.
The WG’s mandate also includes defining requirements on the
Lower Layer Transport needed for correct operation of the TV-Anytime System.
These will be mandatory requirements and will enable organisations like the
DVB, ATSC, ARIB and others to implement TV-Anytime in their environment.
The purpose of Content Referencing is to allow acquisition of a
specific instance of a specific item of content. For example, if a consumer
sees an announcement saying "there will be a new series of murder mysteries
soon", they may want to instruct their Personal Digital Recorder (PDR) to
record the whole series, but cannot since they do not know when the episodes
are going to be broadcast. In fact, the broadcaster may not know yet
either.
To provide the capability desired by the consumer, the ability is
needed to refer to content (in this example a series of programs) independent
of its location, whether that location is on a particular broadcast channel on
some date and time, or on a file server connected to Internet, or
wherever.
The TV Anytime Content Referencing Specification provides a location
independent reference (called a CRID) and the process by which this CRID is
resolved into times and locations where the content can be
found. |
DVB
ATSC
ISO
ISAN
CIDF
SMPTE D27 |
Ronald
Tol |