Weaving Multiple Aspects in Sequence Diagrams - Transactions on Aspect-Oriented Software Development - page 187

Fig. 11. An example of left amalgamated sum

in Fig. 4, the morphism g is not specified but it is trivial: for each aspect, we
associate the objects and the actions having the same names, and the events
corresponding to the actions having the same name. The advice of the aspect
Display in Fig. 4 could be replaced by the “generic” Advice in Fig. 11. It is
the morphism

g which indicates that the object customer plays the role of the

object subject and that the object server plays the role of the object A .

In Fig. 11, the elements of the bSDs base and advice having the same an-

tecedent by f and g will be considered as identical in the bSD result , but they

will keep the names specified in the bSD base . For instance, the objects subject

and A in the bSD advice are replaced by the objects customer and server .All

the elements of the bSD base having an antecedent γ by f such that γ has not

an image by g in the bSD advice are deleted. This case does not appear in the