Assessing the impact of structured real-time design methods

Journal of Microcomputer Applications Pub Date : 1994-07-01 DOI:10.1006/JMCA.1994.1018

C. Ebert

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引用次数: 1

Abstract

Abstract Computer systems in today's society require an increasing amount of embedded real-time software and hardware systems. Their application has introduced new problems for the software engineer related to the complexity of such systems. The early stages of the software development process are vital for the successful implementation of computer systems. Three structured design methods for real-time software systems that are common in industrial projects are compared (SCR, RTSA, DARTS). This comparison is based on the application of all methods to the specification of a commercial heating system which is in the area of 200 function points (6 person-months development time). The complete development process is supported by a heterogeneous CASE environment for reproducibility and hence better comparability. High-order Petri nets are introduced as a graphic formalism for both analysis and architectural design of concurrent systems. The methods are compared quantitatively providing different complexity metrics over time and qualitatively by subjective observations from this and other projects. In the given projects DARTS has some advantages compared to the other methods.

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评估结构化实时设计方法的影响

当今社会的计算机系统对嵌入式实时软件和硬件系统的要求越来越高。它们的应用为软件工程师带来了与此类系统复杂性相关的新问题。软件开发过程的早期阶段对于计算机系统的成功实施至关重要。比较了工业项目中常见的实时软件系统的三种结构化设计方法(SCR、RTSA、DARTS)。这种比较是基于对商业供暖系统规格的所有方法的应用，该系统在200个功能点(6人月的开发时间)的范围内。完整的开发过程由异构的CASE环境支持，以实现再现性和更好的可比性。高阶Petri网作为一种图形形式被引入并发系统的分析和架构设计。对这些方法进行定量比较，随时间提供不同的复杂性度量，并通过从本项目和其他项目的主观观察定性地提供不同的复杂性度量。在给定的项目中，与其他方法相比，dart具有一些优势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Journal of Microcomputer Applications

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