Designs with Angelic Nondeterminism

P. Ribeiro, Ana Cavalcanti
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引用次数: 10

Abstract

Hoare and He's Unifying Theories of Programming (UTP) are a predicative relational framework for the definition and combination of refinement languages for a variety of programming paradigms. Previous work has defined a theory for angelic nondeterminism in the UTP; this is basically an encoding of binary multirelations in a predicative model. In the UTP a theory of designs (pre and postcondition pairs) provides, not only a model of terminating programs, but also a stepping stone to define a theory for state-rich reactive processes. In this paper, we cast the angelic nondeterminism theory of the UTP as a theory of designs with the long-term objective of providing a model for well established refinement process algebras like Communicating Sequential Processes (CSP) and Circus.
天使非决定论的设计
Hoare和He的编程统一理论(unified Theories of Programming, UTP)是一个谓词关系框架,用于为各种编程范式定义和组合精化语言。先前的工作已经定义了UTP中天使不确定性的理论;这基本上是在一个预测模型中对二元多关系进行编码。在UTP中,设计理论(前置和后置条件对)不仅提供了终止程序的模型,而且还为定义富状态反应过程的理论奠定了基础。在本文中,我们将UTP的天使不确定性理论作为一种设计理论,其长期目标是为完善的改进过程代数(如通信顺序过程(CSP)和Circus)提供一个模型。
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