Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Event_condition_action> ?p ?o }
Showing triples 1 to 40 of
40
with 100 triples per page.
- Event_condition_action abstract "Event condition action (ECA) is a short-cut for referring to the structure of active rules in event driven architecture and active database systems.Such a rule traditionally consisted of three parts:The event part specifies the signal that triggers the invocation of the ruleThe condition part is a logical test that, if satisfied or evaluates to true, causes the action to be carried outThe action part consists of updates or invocations on the local dataThis structure was used by the early research in active databases which started to use the term ECA. Current state of the art ECA rule engines use many variations on rule structure. Also other features not considered by the early research is introduced, such as strategies for event selection into the event part.In a memory-based rule engine, the condition could be some tests on local data and actions could be updates to object attributes. In a database system, the condition could simply be a query to the database, with the result set (if not null) being passed to the action part for changes to the database. In either case, actions could also be calls to external programs or remote procedures.Note that for database usage, updates to the database are regarded as internal events. As a consequence, the execution of the action part of an active rule can match the event part of the same or another active rule, thus triggering it. The equivalent in a memory-based rule engine would be to invoke an external method that caused an external event to trigger another ECA rule. ECA rules can also be used in rule engines that use variants of the Rete algorithm for rule processing.".
- Event_condition_action wikiPageExternalLink dynamic-models.html.
- Event_condition_action wikiPageExternalLink rules.
- Event_condition_action wikiPageID "9519016".
- Event_condition_action wikiPageLength "2233".
- Event_condition_action wikiPageOutDegree "9".
- Event_condition_action wikiPageRevisionID "681273631".
- Event_condition_action wikiPageWikiLink Active_database.
- Event_condition_action wikiPageWikiLink Business_rules_engine.
- Event_condition_action wikiPageWikiLink Category:Databases.
- Event_condition_action wikiPageWikiLink Category:Rule_engines.
- Event_condition_action wikiPageWikiLink Event-driven_architecture.
- Event_condition_action wikiPageWikiLink Event_driven_architecture.
- Event_condition_action wikiPageWikiLink Rete_algorithm.
- Event_condition_action wikiPageWikiLink Rule_engine.
- Event_condition_action wikiPageWikiLink Rulecore.
- Event_condition_action wikiPageWikiLinkText "ECA rules".
- Event_condition_action wikiPageWikiLinkText "Event condition action".
- Event_condition_action wikiPageWikiLinkText "active rules".
- Event_condition_action wikiPageWikiLinkText "event condition action".
- Event_condition_action wikiPageWikiLinkText "events".
- Event_condition_action wikiPageWikiLinkText "logical test".
- Event_condition_action hasPhotoCollection Event_condition_action.
- Event_condition_action wikiPageUsesTemplate Template:Refbegin.
- Event_condition_action wikiPageUsesTemplate Template:Refend.
- Event_condition_action wikiPageUsesTemplate Template:Unreferenced.
- Event_condition_action subject Category:Databases.
- Event_condition_action subject Category:Rule_engines.
- Event_condition_action hypernym Test.
- Event_condition_action type Article.
- Event_condition_action type Cricketer.
- Event_condition_action type Article.
- Event_condition_action type Datum.
- Event_condition_action comment "Event condition action (ECA) is a short-cut for referring to the structure of active rules in event driven architecture and active database systems.Such a rule traditionally consisted of three parts:The event part specifies the signal that triggers the invocation of the ruleThe condition part is a logical test that, if satisfied or evaluates to true, causes the action to be carried outThe action part consists of updates or invocations on the local dataThis structure was used by the early research in active databases which started to use the term ECA. ".
- Event_condition_action label "Event condition action".
- Event_condition_action sameAs m.02phlgs.
- Event_condition_action sameAs Q5416711.
- Event_condition_action sameAs Q5416711.
- Event_condition_action wasDerivedFrom Event_condition_action?oldid=681273631.
- Event_condition_action isPrimaryTopicOf Event_condition_action.