Definition of Event

Definition Last Updated 17-Dec-2015 12:51

An event is a change in the state of something, i.e. a change in characteristics occurring somewhere during some interval of time and indirectly including activities and relationships; the occurrence of an event may be observed or inferred from its natural consequences. An event is indivisible only at a particular level of description: an event may therefore comprise lower level events1The incandescent light came on being describable as electricity began to flow through the filament, the filament began to heat up, the filament began to emit visible light, the filament grew brighter and hotter until a steady state was reached..

According to the current UML specification2OMG Unified Modeling Language™ (OMG UML), v2.5 pdf here., an event is

something that may occur at a specific instant in time

Scope

Event is a defined term of Enterprise Architecture. Event is a defined term of Business Analysis.

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Article Last Updated 17-Dec-2015 12:51

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Notes   [ + ]

1.The incandescent light came on being describable as electricity began to flow through the filament, the filament began to heat up, the filament began to emit visible light, the filament grew brighter and hotter until a steady state was reached.
2.OMG Unified Modeling Language™ (OMG UML), v2.5 pdf here.

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