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Services and Contracts: Coalgebraically
Author(s) -
Meng Sun
Publication year - 2008
Publication title -
electronic notes in theoretical computer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.242
H-Index - 60
ISSN - 1571-0661
DOI - 10.1016/j.entcs.2008.04.063
Subject(s) - bisimulation , observational equivalence , functor , axiom , morphism , equivalence (formal languages) , coalgebra , computer science , service (business) , popularity , mathematics , theoretical computer science , algebra over a field , programming language , pure mathematics , business , psychology , social psychology , geometry , marketing
The popularity of service-oriented computing has not been accompanied by the necessary formalization of the notions being involved. This paper focuses on the development of a coalgebraic framework to support service-oriented application design. In this paper, the concepts are separated into three hierarchies – interfaces, contracts and services. Interfaces are specified by functors, and services are shown to be coalgebras of such functors, which should satisfy the axioms given in corresponding contracts. Different interfaces, contracts and services are related respectively by the morphisms between them. And the notion of bisimulation for services is derived from service morphisms, which captures the observational equivalence of services

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