Estendendo CRefine para o suporte de táticas de refinamento
The use of increasingly complex software applications is demanding greater investment in the development of such systems to ensure applications with better quality. Therefore, new techniques are being used in Software Engineering, thus making the development process more effective. Among these new a...
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| Formato: | Dissertação |
| Idioma: | por |
| Publicado em: |
Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/jspui/handle/123456789/18037 |
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| Resumo: | The use of increasingly complex software applications is demanding greater investment
in the development of such systems to ensure applications with better quality. Therefore,
new techniques are being used in Software Engineering, thus making the development
process more effective. Among these new approaches, we highlight Formal
Methods, which use formal languages that are strongly based on mathematics and have a
well-defined semantics and syntax. One of these languages is Circus, which can be used
to model concurrent systems. It was developed from the union of concepts from two other
specification languages: Z, which specifies systems with complex data, and CSP, which
is normally used to model concurrent systems. Circus has an associated refinement calculus,
which can be used to develop software in a precise and stepwise fashion. Each step
is justified by the application of a refinement law (possibly with the discharge of proof
obligations). Sometimes, the same laws can be applied in the same manner in different
developments or even in different parts of a single development. A strategy to optimize
this calculus is to formalise these application as a refinement tactic, which can then be
used as a single transformation rule. CRefine was developed to support the Circus refinement
calculus. However, before the work presented here, it did not provide support for
refinement tactics. The aim of this work is to provide tool support for refinement tactics.
For that, we develop a new module in CRefine, which automates the process of defining
and applying refinement tactics that are formalised in the tactic language ArcAngelC. Finally,
we validate the extension by applying the new module in a case study, which used
the refinement tactics in a refinement strategy for verification of SPARK Ada implementations
of control systems. In this work, we apply our module in the first two phases of
this strategy |
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