Extending the UML with a Multicast Synchronisation | Zendy

Bogumiła Hnatkowska | Zendy; Zbigniew Huzar | Zendy

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Extending the UML with a Multicast Synchronisation

Author(s) -

Bogumiła Hnatkowska,

Zbigniew Huzar

Publication year - 2000

Publication title -

electronic workshops in computing

Language(s) - English

Resource type - Conference proceedings

ISSN - 1477-9358

DOI - 10.14236/ewic/room2000.4

Subject(s) - computer science , unified modeling language , applications of uml , programming language , object constraint language , metamodeling , semantics (computer science) , uml tool , distributed computing , software engineering , software

There is many systems, which need synchronisation between their components. Typical examples are concurrent task synchronisation, or synchronisation of multimedia streams during their transmission and presentation. UML (Unified Modelling Language) is a specification language elaborated for object-oriented modelling. The UML enables explicit specification of peer-to-peer synchronisation only. The specific feature of the UML is its extensibility, allowing adaptation of it to a given domain. In the paper, a new mechanism for a specification of a multicast synchronisation is presented. First, we entend the UML metamodel by introducing new metaclasses. Next, we define a new stereotype Synchroniser. Synchronisers have instances called synchronisation points. Synchronisation points offer synchronisation services to objects that may use them. The paper describes informally semantics of synchronisation points and demonstrates their expressive power by analysis of three examples.

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