48 (97)

208 Cbapter 5

G>	“C A ->	-O- >—> —^ contactclient 7 record	—o :	p / c6	O -> pay t c8	-o
start		collect	\ c5 assess\		f file	cnd
	-ci		5^c4	V	pl
	contact department				sendletter

Figurę 5.26

Process “handle complaint”

though, that manufacturers will incorporate all this functionality. This would not be sensible, because they would never be able to remain up to datę in every one of these fields. A better solution is for the architecture of their systems to be left sufficiently open so that it is easy to integrate other manufacturers’ software packages—with specific functions from the rangę described—into them. But for this a great deal of standardiza-tion is reąuired.

EXERCISES

Exercise 5.1

Describe the reference model of the WfMC; that is, provide a graphical model of the components and interfaces. Describe each component in detail. Also discuss the functionality of each of the five interfaces.

Exercise 5.2

Answer the following short ąuestions:

(a)    What are the ACID properties?

(b)    Which interface typically causes technical problems?

(c)    What are the four roles of people involved in the design and deploy-ment of a workflow management system?

(d)    Name some examples of workflow interoperability standards focus-ing on run-time aspects.

(e)    Characterize the following workflow management systems: Staff-ware, COSA, and ActionWorkflow.