# UML Distilled: Figure 5-2 p. 70 .PS copy "sequence.pic"; boxwid = 1.3; # Define the objects pobject(X); pobject(T); pobject(C); pobject(A1); pobject(A2); # Message sequences cmessage(X,T,"a: Transaction"); active(T); async(); cmessage(T,C,"a: TransCoord"); inactive(T); active(C); cmessage(C,A1,"a1: TransCheck"); active(A1); cmessage(C,A2,"a2: TransCheck"); active(A2); message(A1,C,"ok"); sync(); step(); active(C); message(C,C,"all done?"); inactive(C); async(); step(); delete(A1); inactive(C); step(); message(A2,C,"ok"); active(C); sync(); step(); active(C); message(C,C,"all done?"); inactive(C); async(); step(); delete(A2); message(C,T,"beValid"); inactive(C); active(T); step(); complete(T); complete(C); .PE
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