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Volume 12 / Issue 7

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DOI:   10.3217/jucs-012-07-0958

 

Defining Atomic Composition in UML Behavioral Diagrams

Júlio Pereira Machado (Pontifícia Universidade Católica do Rio Grande do Sul, Brazil)

Paulo Blauth Menezes (Universidade Federal do Rio Grande do Sul, Brazil)

Abstract: UML may be used to describe both the structure and behavior of objectoriented systems using a combination of notations. For the modeling of the dynamic behavior, a number of different models are offered such as interaction, state and activity diagrams. Although compositional techniques for modeling computational processes demand means of composing elements both in non-atomic or atomic ways, UML seems to lack compositional constructs for defining atomic composites. We discuss proper extensions for diagrams that are able to cope with the concept of atomic composition as the basic element for describing transactions (in our settings the term "transaction" denotes a certain operation of a system that might be atomically composed by many, possibly concurrent, operations). Atomic compositions are then formally defined through a special morphism between automata in a domain called Nonsequential Automata.

Keywords: UML, nonsequential automata, semantics

Categories: D.1.5, D.2.0, F.1.1, F.3.2