Transcript Usage of Multimedia System

Usage of Multimedia System
Group Member:
Ch’ng Choo Yeang
Chong Yeong Vuei
Leong Keat Poh
Ng Chee Yuen
WET 020018
WET 020025
WET 020062
WET 020103


I.
II.
III.
Multimedia systems have variety of
usages.
They can be classified as
Multimedia Presentation Systems
Multimedia Conferencing Systems
Multimedia Database Systems
Multimedia Presentation
System






A Multimedia Presentation System (MPS) is characterized by
processing, storage, generation, manipulation and rendition of
multimedia.
Retrieve the multimedia information from a database for
presentation.
Database is created separately and stored as in the case of
the system.
The information accessed may vary dynamically within a
subset of the database.
In the case of MPS over the World Wide Web (WWW), the
generation (web server) and the rendition (web client) are
done at different locations.
Example: distance learning (on-line courseware, on-demand
instruction) and digital libraries
Multimedia Conferencing
System






An online real-time system.
allowing two or more users to communicate and
exchange information and to simultaneously
manipulate multimedia documents.
Persons at different locations work on same task.
All participants see same information.
System deals with creating digitized video/voice,
data, images and graphics and transmitting such
information across a communication network.
The system deals with non-persistent multimedia
information.




Example: Microsoft Netmeeting
Conferencing for the Internet and
Intranet
Audio and video communication
between two end stations
Multimedia Database System




System deals with creation, maintenance
and retrieval of multimedia information.
Database can be at several sites and
connected to workstations via a
communication network.
The query generated by any of the clients
will be internally translated into one or more
queries to the different servers.
The responses that are received from the
individual servers are pieced together into
one composite response by the workstation.
MDS Application



The database applications are half
duplex.
Source sends query and waits.
Destination picks up the query,
interpret, collects and collates the info
required to forma response and sends
it back to source.
(HDTV-on-demand server)






Similar to a video tape rental store.
The server digitally stores video on a large array of
high-capacity storage devices
Users can access the server by searching on the
video’s subject title and can play the movie by
retrieving the stored video from the server
Two modes of operation: broadcast and on-demand.
Broadcast: server=sender; clients=receivers
On-demand: server=multiple senders; each client
communicates with one instantiation of the server.