利用scenario获取对象状态图的算法研究与隐含scenario的获取

论文摘要

软件建模是面向对象软件工程的一个重要领域,实现这些模型之间的自动转换,对于保持系统开发过程各阶段中模型的一致性,及快速生成系统原型有着重要的意义。本文在现有工作的基础上提出了利用需求分析过程中的scenario 模型来自动生成对象状态图模型的方法,并对应用生成的状态图获得新的scenario 的方法进行了讨论从UML 建模角度,对象状态是指对象的生命期中的一个条件或状况,在此期间对象将满足某些条件。本文据此提出了利用用例描述来获取对象状态的方法,并扩展了“状态变量”和“状态向量”等概念,给出了在这些概念基础上进行状态模型生成的具体步骤。同时,利用在状态图生成过程中形成的合理的未预期状态转换路径,能够生成已知scenario 模型中未提供的scenario 描述。

论文目录

第一章引言

1.1 背景介绍

1.1.1 UML 动态模型与软件过程的关系

1.1.2 UML 模型转换和其意义

1.2 本文的主要工作和组织

第二章研究现状

2.1 研究现状

2.1.1 利用语法推导方法得到对象状态图

2.1.2 利用OCL 得到对象状态图

2.1.3 利用合作图得到对象状态图

2.2 现有方法的不足

2.2.1 对象状态反映的合理性

2.2.2 状态转换路径的正确性

2.2.3 算法的灵活性

2.3 结论

第三章对象状态的描述与获取

3.1 对象状态的表达方式

3.1.1 对象状态的描述手段

3.1.2 对象状态的来源及获取时机

3.1.3 状态变量和状态向量

3.2 状态向量的获取

3.2.1 Scenario 的建立

3.2.2 对象状态变量与环境状态变量的确定

3.2.3 状态向量赋值

3.2.4 为避免对象状态膨胀而采取的措施

3.2.5 实例

3.3 结论

第四章状态图生成算法介绍

4.1 相关概念

4.2 输入和输出

4.3 算法阐述

4.4 算法特点

4.3.1 灵活性

4.3.2 引入scenario 信息

第五章状态图中未预期路径的研究

5.1 未预期状态转换路径的正确性

5.2 提取未预期的状态转换路径

5.2.1 相关准备工作

5.2.2 算法描述

5.3 隐含的scenario

5.3.1 对象的scenario 消息轨迹片

5.3.2 构造隐含的scenario

5.4 结论

第六章结束语

参考文献

摘要

Abstract

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标签：状态论文; 状态图论文; 用例描述论文;

利用scenario获取对象状态图的算法研究与隐含scenario的获取

论文摘要

论文目录

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