1-8
User Guide for Cisco Digital Media Player Device Manager 1.0
OL-12472-01
Chapter 1 Introduction
Basic DMS Concepts and Vocabulary
Basic DMS Concepts and Vocabulary
DMS helps organizations of any size to create, manage and deliver video content (whether live or
on-demand) and digital signage content over an IP network to any general or targeted audience. With
DMS, you can:
•
Communicate with targeted customers, investors, press, and analysts.
•
Deliver live and on-demand events to audiences in any location.
•
Deliver critical information and training to employees, suppliers, and partners.
•
Deliver educational content to students.
Table 1-1
lists and defines some of the most commonly used DMS terms, abbreviations, and initialisms.
Table 1-2
Concepts and Vocabulary
Term
Definition
AAI
Appliance Administration Interface
. Text user interface and command shell on every
DMS
appliance
. System
administrators use AAI when they set up, configure, or maintain a DMS appliance. (Text user interfaces use
ANSI-style escape sequences to control the presentation of text and other shapes on a screen; they differ from
command-line interfaces and graphical user interfaces.)
ACNS
Cisco Application and Content Networking System.
ACNS software runs on the
WAE
platform for content
distribution and interoperates with
DMM
to greatly reduce redundant digital media traffic over satellite and
terrestrial networks. The streaming media features of ACNS deliver high-quality and long-playing digital
videos live and simultaneously to thousands of users and
DMP
s, or on demand at a later time.
appliance
In the
DMS
family of products, an appliance is an
MCS
on which either
DMM
or
Video Portal
software is
preinstalled. To administer the appliance chassis and configure its low-level behaviors, you use
AAI
.
application
In DMM-DSM, an application is a named tool that you can use to perform an administrative task, such as
sending a particular command (or a particular sequence of commands) to one DMP or to all the DMPs in a DMP
group.
bpp
bits per pixel
, also known as color depth. Indicates both the number of bits that are required to represent the
color of one pixel on a display and the total number of distinct colors that the display is configured to represent.
When you use DMPDM, every pixel on the
DMP display
is 32 bpp and the display can represent a total of
16.7 million distinct colors.
codec
encoder-decoder
. Any specific, named method to encode, decode, or transcode digital video files or digital
audio files. The quality of an encoded file is determined in part by whether its codec is
lossy
or
lossless
,
meaning whether it deletes potentially important data to reduce filesize.
container
The
container
for a video content offering is the “wrapper” that combines metadata, syncronization data, and
video data to which a
codec
has been applied.
digital
signage
Digital signage
consists of any combination of messages or other kinds of information that people can see or
hear, and that a
DMP
delivers to people. The content might pertain to commerce, popular entertainment, staff
training, emergency awareness, combinations of these things, or nearly anything. The people who manage a
DMP (or who manage multiple DMPs in a digital signage network) decide what to show or say, and when, and
to whom.
