[infod-wg] Fw: Terms for addition to Glossary.

[Chris Kantarjiev]

FYI. Also Can you post it to infod list?
Regards,
Vijay
(Sorry, I missed that this was only to me until just now!)

Vijay Dialani wrote:

Hi All,
Please find the additions to glossary. Once approved the terms will be 
updated to the document.
Regards,
Vijay
_
Publisher_        A content provider that advertises and publishes its 
contents in accordance to the subscription rules.
_
Consumer_        A recipient of published contents. The contents are 
obtained as a result of evaluation of a subscription against a single or 
multiple publications.
 _
Subscriber_        An intermediary used to establish and controls the 
flow of publications (by means of subscription rules) - between a 
publisher/set of publishers and a consumer.
_
Broker_        A message routing intermediary for publishers and 
consumers, used for match making the list of publication types and 
subscriptions.
_
Propagator_        A component that retains publications produced for a 
subscription. It also provides the access mechanism for a deferred 
consumption.
_
Continuous Query_        Unlike normal queries that evaluate the state 
as of a snapshot in time, continuous queries evaluate the expression for 
a period of time. Continuous queries produce incremental results as the 
data becomes available.
_
Pushing_        A propagation mechanism in which the communication is 
initiated by the publisher of data/publications.
_
Pulling_        A propagation mechanism in which the communication is 
initiated by the consumer of data/publications.
_
Polling_        A propagation mechanism in which the consumer/publisher 
initiates the communication to validate the "state" of the recipients.
_
Action_        In Event-Condition-Action paradigm, an action denotes the 
declarative statement that needs to be executed when a certain condition 
is met by the published event.
_
Event Correlation
Content_        A content based correlation verifies a prescribed 
condition against the contents of two messages produced either by the 
same publisher or different publishers.
_
Event Correlation
Creation_        A correlation that verifies a prescribed condition 
against the publication types of two or more publications/messages.
_
Type System_        An enumeration that defines the list of acceptable 
value domains, their value ranges and binary representation in a digital 
system.
_
Language_        A common shared expression list used to specify a list 
of principles (tokens) and the operations permitted on these tokens.
_
Registry_        A repository of resource advertisement used primarily 
for match making between resource providers and resource consumers.
_
History_        A persistent and temporal record of previously 
encountered publications/messages.        
_
Latest queries_        A causally ordered list of most recent queries 
processed by the entity.
_
Mediation_        A match making mechanism used for filtering resource 
advertisements in accordance to resource queries.
_
Primary and Secondary Producers: _*Where is it used in the document?*
_
Profiles_        Resource description of an entity.

_
Demand Driven Publishing_  A publication mechanism in which publications 
are made available only if there exists a set of consumers for that 
publication.
_
Targeted Publishing_        A publication mechanism in which a publisher 
commences to publish the contents in response to demand from consumers.


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