Introduction
In Concept: IT Architecture the idea of viewpoints (views and aspects) that
are used to describe the IT architecture of a "system". A business event is not one of the aspects, or vertical slices
through the architecture—it does not appear as a specific column in the UAM framework, but is part of the "Activity"
aspect. Events drive, and control, the activities within the business. Note: the term
"business event" is used here in the generic sense—it applies to all levels of modeling: the Business, Logical and
Technical Perspectives. See:Term Definition: Business Event.
Events
At the Business Perspective level, the notion of event is used to identify and describe the business
level events that are important in understanding how the business operates and how these events relate to
activities, tasks and processes. The Business Process Model viewpoint supports the capture of events by describing the
business activities, and organizes them into a model. See: Guideline: Business Process Model. At the business level there are a limited number
of types of event defined in UAM. The events defined at the business level are generic—this list included in the
Business Perspective Language includes:
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Start Event - an unspecified start event;
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End Event - an unspecified end event;
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Timer Start - a timer start event.
The Start and End events are generic, since at the Business level it is best to stay high-level and generic, and
develop more detail and specifics in the Logical Perspective. See: Supporting Material: BPL Defined.
The Logical and Technical Perspective Languages have large numbers of events
defined; see: Supporting Material: LPL Defined and Supporting Material: TPL Defined.
Finding Events
A starting point for finding events (and the start for business processes) are the relationships between Actors and
Activities (i.e. the "system"). A business event typically triggers the start of the business activity/process.
Also look at the activities and tasks within the system and the business process involved. Often business events are
needed to pass control between processes or between tasks.
Similarly if business entities have states defined then the state transitions may define possible business
events. Also, any significant operations of a business entity are candidate business events.
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