Business Process Modeling

Event-Driven Process Chains (EPC)

Event-Driven Process Chains (EPC)

Language for describing business processes

Operating Process

Alternating results from events and tasks

Events

·  Represents a business economics condition
·  Prerequisites for and results of tasks
·  There is always a start event and a stop event
·  Hexagon

Example

·  Sales order arrives
·  Master data file is opened
·  Invoice created

Task

·  Activity, job to be done, bridge between conditions
·  Time and costs can only be assigned to tasks
·  Decision-making authority for further activity
·  Rectangle with rounded corners

Logical operators

·  XOR: one case exlclusively
·  OR: one or more of a set of cases
·  AND: all cases true
·  An event can only be followed by an AND operator
·  In contrast to tasks and events, can have multiple entry/exit points

Join Operator

Several tasks lead jointly to a single event

Split Operator

An event triggers multiple tasks

Organizational units

·  Assigned to tasks
·  Determination as to where a duty included in a task will be performed

Information objects

·  Modeling of data items
·  Related to tasks
·  Tasks require data from information objects

Knowledge exchange

Relay of information among those working in operations and application developers

Example 2

Process an incoming sales order

Example 1

Process a job application

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