一种从面向对象Z规约到代码的精化演算方法  

From Object-Oriented Z Specification to Code by Refinement Calculus

作　　者：王云峰[1] 庞军[1] 查鸣[1] 杨朝晖 郑国梁[1] 

机构地区：[1]南京大学计算机软件新技术国家重点实验室

出　　处：《软件学报》2000年第8期1041-1046,共6页Journal of Software

基　　金：国家自然科学基金! (No.6 96 730 0 6 );国家"九五"重点科技攻关项目基金! (No.98- 780 - 0 1- 0 7- 0 6 )资助

摘　　要：COOZ(complete object- oriented Z)的优势在于精确描述大型程序的规约 .COOZ本身的结构不支持精化演算 ,这限制了 COOZ的应用能力 ,使 COOZ难以作为完整的方法应用于软件的开发 .将精化演算引入COOZ,弥补了 COOZ在设计和实现阶段的不足 ,同时也消除了规约与实现之间在结构和表示方法上的完全分离 ,使程序开发在一个完整的框架下平滑进行 .该文提出了基于 COOZ和精化演算的软件开发模型 ,通过实例讨论了数据精化和操作精化问题 .在精化演算实现技术方面构造了一种数据精化算子 ,提出一种基于数据精化演算和程序窗口推理的数据精化的方法 .The advantage of COOZ (complete object oriented Z) is to specify large scale software, but it does not support refinement calculus. Thus its application is confined and it can not be taken as a complete method for software development. Including refinement calculus into COOZ remedies its disadvantage during design and implementation. The separation between the design and implementation for structure and notation is removed as well. Then the software can be developed smoothly in the same frame. In this paper, development model is established, which is based on COOZ and refinement calculus. Data refinement and operation refinement are debated with a example. As for implementary technology of refinement calculus, a data refinement calculator is constructed and an approach for data refinement which is based on data refinement calculus and program window inference is provided.

关 键 词：形式化开发方法 精化演算 面向对象 代码 

分 类 号：TP311.52[自动化与计算机技术—计算机软件与理论]