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 Event-  driven process chain (EPC) model

One of the most widely used methods for describing business events and processes is the 

 event-  driven process chain method (EPC). This has been popularised by its application to 

re-engineering of enterprises performed using the SAP R/3 ERP product which accounts for 

worldwide sales of several billion dollars. Over 800 standard business EPCs are defined to sup-

port the SAP R/3 system; they are intended to illustrate business rules clearly for interpretation 

by business users before enactment in the software. The different elements of the EPC model 

are shown in Table 11.5; these include the different types of dependencies previously reviewed 

in Table 11.4. Figure 11.5 is an EPC  meta-  model illustrating how the different elements relate