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1.
    
Incorporating a high level of adaptability and reusability into software is one challenge that all software engineers face. PBX (Private Branch Exchange) is one such system that requires a high level of adaptability and reusability because of rapidly expanding service features, ever changing communication technology, continuously evolving standards and diverse communication laws and standards in different countries. The software engineering community has made various efforts to address the problem of enhancing software adaptability and reusability. As a result, many programming concepts, such as information hiding, encapsulation, object orientation, abstract data type and modularization, have been developed. Although adequate application of these principles requires the domain or program family perspective, most methods, so far, have been oriented toward developing a single application. FORM (Feature‐Oriented Reuse Method), the domain‐based software reuse method applied in this paper, concentrates on analyzing and modeling commonalities and differences in applications of a given domain and using the analysis results to develop domain‐oriented architectures and software components. The model that captures commonalities and differences is called the ‘feature model’ and it is used for both the engineering of reusable domain artifacts and the development of actual application software with reusable artifacts. We found that FORM facilitates analysis of variability, as well as commonality, of software before the start of engineering and implementation. With this understanding, adaptability and reusability can be built into software. Also, feature modeling has been found to be an effective method for identifying objects. Copyright © 1999 John Wiley & Sons, Ltd.  相似文献   

2.
基于构件的应用软件系统的体系结构及其开发模型   总被引:38,自引:0,他引:38  
文中介绍了一个基于构件的应用软件系统的体系结构及共开发模型。基于领域分析方法抽取出的领域构件,使体系结构具有可扩展性。系统能随着需求的变化作相应的修正。解决了本系统在同一领域的复用问题。  相似文献   

3.
This paper describes a prototype Knowledge-Based Software Engineering Environment used to demonstrate the concepts of reuse of software requirements and software architectures. The prototype environment, which is application-domain independent, is used to support the development of domain models and to generate target system specifications from them. The prototype environment consists of an integrated set of commercial-off-the-shelf software tools and custom developed software tools.The concept of reuse is prevalent at several levels of the domain modeling method and prototype environment. The environment itself is domain-independent thereby supporting the specification of diverse application domain models. The domain modeling method specifies a family of systems rather than a single system; features characterize the variations in functional requirements supported by the family and individual family members are specified by the features they are to support. The knowledge-based approach to target system generation provides the rules for generating target system specifications from the domain model; target system specifications, themselves, may be stored in an object repository for subsequent retrieval and reuse.  相似文献   

4.
一种面向特征的领域模型及其建模过程   总被引:69,自引:4,他引:65       下载免费PDF全文
张伟  梅宏 《软件学报》2003,14(8):1345-1356
特征模型作为捕获领域需求的重要模型已被现阶段的主流领域工程方法所接受,但这些方法缺乏对特征模型组织框架的细致研究和说明,在一定程度上导致了特征模型在表现形式上的冗余性和混乱性,也使得领域分析人员在实践中很难有效地进行领域建模活动.从特征模型的基本组织结构、变化性的表现方式和限制机制、变化性的绑定时间等方面对特征模型的组织框架及剪裁机制进行了统一、抽象的描述.在考察服务、用例(use case)、功能、行为特点等不同类型的特征及其相互关系的基础上,给出了一种特征模型的具体形式,并结合具体的领域,对其建模过程进行了详细论述.此项研究对于领域建模活动的成功实施具有一定的指导作用.  相似文献   

5.
一种面向对象的领域工程方法   总被引:26,自引:0,他引:26       下载免费PDF全文
王千祥  吴琼  李克勤  杨芙清 《软件学报》2002,13(10):1977-1984
介绍了一种面向对象的领域工程方法--\"青鸟领域工程方法\".领域工程是对一个领域中的若干系统进行分析,识别这些应用的共同特征和可变特征,进行面向复用的开发,产生出特定于领域的构件和构架.领域工程给软件复用提供了有力的支持.\"青鸟领域工程方法\"以\" 青鸟面向对象开发方法\"为基础,明确规定了领域工程中各个阶段的活动和产品,并针对每个阶段和活动给出了操作指南.  相似文献   

6.
基于软件重用技术的软件开发方法研究   总被引:8,自引:0,他引:8  
首先给出软件重用的定义及分析相关的领域分析、重用再工程、面向对象程序的开发方法和基于重用的软件开发原则等相关技术,然后结合GIS软件的开发探讨相应的软件重用技术的应用.  相似文献   

7.
可变性建模是软件产品线领域研究热点,现阶段的研究局限在需求阶段,缺乏完整的理论体系,从领域工程到应用工程缺乏详细的指导。针对这些问题,本文改进特征模型构建方法和流程,使其支持软件全生命周期,加强各模型的映射关系,增强流程可操作性,保障模型间的一致性。最后,得到需求阶段和设计阶段的可变性模型,并成功应用到教学服务管理系统二次开发中。通过构件开发和效率比较,验证本文改进方法作为软件复用分支理论是实际可行的,并且能够提高开发效率。  相似文献   

8.
软件体系结构的描述方法研究   总被引:17,自引:0,他引:17       下载免费PDF全文
目前关于软件体系结构的描述已有许多工具支持,但各种工具不仅是领域相关的,而且描述方法也不尽统一,这使设计人员很难选择一种合适的工具,将体系结构的共同特征提取出来,秦为体系结构描述的核心模型,为各种工具提供了共同的基础-若要用某一种工具描述,只需增加与之相关的约束,另一方面将软件体系结构与当前主流的面向对象方法相结合,利用统一建模语言UML的扩充机制,从多个视图描述了软件体系结构,最后结合研究工作给  相似文献   

9.
    
We describe the design and implementation of system architecture to support object introspection in C++. In this system, information is collected by parsing class declarations, and is used to build a supporting environment for object introspection. Our approach is non‐intrusive because it requires no changes in the original class declarations and libraries; hence, binary compatibility between objects before and after the addition of introspective capability is ensured. This is critical if one wants to integrate third‐party class libraries, which are often supplied as black boxes and allow no modification, into highly dynamic applications. We present two applications: the first is automatic I/O support for C++ objects, and the other is interactive exercise of dynamically loaded C++ class libraries. Copyright © 2001 John Wiley & Sons, Ltd.  相似文献   

10.
本文讨论了模型的视角选择、功能分配原则、如何在运行时按用户的需要改变功能和系统实现的主要方法与特点以及所构成的主要可复用的模块.文章还简要介绍了模型在一个水泥企业实际开发中的具体应用。  相似文献   

11.
特定领域组件提取的研究   总被引:3,自引:0,他引:3  
要进行大规模的基于组件的开发应将该组件的生产和组件的组装过程分开,从组件生产者的角度出发,讨论了在特定领域内应该如何提取可以复用的组件,并且以教学评估领域为例进行了说明。  相似文献   

12.
Addy  Edward  Mili  Ali  Yacoub  Sherif 《Software Quality Journal》1999,8(3):169-195
We report on a term project to conduct domain engineering followed by application engineering for a specific set of applications. We discuss some of the observations we have made on this project, as well some of the lessons we have learned.  相似文献   

13.
可重用的软件体系结构描述方法   总被引:3,自引:0,他引:3  
  相似文献   

14.
面向领域的快速特征造型的设计与实现   总被引:1,自引:0,他引:1  
张宏鑫  陈伟锋  刘华 《计算机应用》2008,28(12):2998-3002
提出了面向领域的快速几何特征造型新方法。受软件工程理论中的“域工程”思想启发,该方法针对特定领域的几何特征造型设计,研究如何将领域知识加以抽象自动化,改良几何造型系统的软件架构设计,优化造型系统的算法设计,从而最终提高特征造型系统的整体效率。基于这一思想方法,讨论并分析了计算机辅助建筑设计中造型的需求,提出了系统实现框架,给出了相应的算法实例。应用实例证明了方法的可用性。  相似文献   

15.
软件重用技术在电子政务中的应用   总被引:1,自引:0,他引:1  
何玉云 《微机发展》2003,13(Z1):80-82
软件重用技术是当前软件开发研究的重点,针对电子政务领域产品开发过程中的重用策略与方法,从系统分析、设计到编码,讨论了软件的领域重用与层次重用等方面的问题。实现了产品领域横向的重用和产品开发过程中的纵向层次体系结构的重用,从而提高了软件产品的可重用性和软件生产率,并为后继产品的开发提供了良好的可重用基础。  相似文献   

16.
    
Much has been investigated about software reuse since the software crisis. The development of software reuse methods, implementation techniques, and cost models has resulted in a significant amount of research over years. Nevertheless, the increasing adoption of reuse techniques, many of them subsumed under higher level software engineering processes, and advanced programming techniques that ease the way to reuse software assets, have hidden somehow in the recent years new research trends on the practice of reuse and caused the disappearance of several reuse conferences. Also, new forms of reuse like open data and feature models have brought new opportunities for reuse beyond the traditional software components. From past to present, we summarize in this research the recent history of software reuse, and we report new research areas and forms of reuse according to current needs in industry and application domains, as well as promising research trends for the upcoming years.  相似文献   

17.
基于构件的领域工程实现   总被引:3,自引:0,他引:3  
本文以软件工程的开发方法为基础,以软件复用为目的,以构件化为目标,总结了领域分析、领域设计、领域实现的方法;详细分析和讨论了领域工程的这三个阶段,并给出了一个具体的实现领域工程的详细过程。  相似文献   

18.
    
In object‐oriented systems, cohesion refers to the degree of the relatedness of the members in a class and strong cohesion has been recognized as a highly desirable property of classes. We note that the existing cohesion measures do not take into account some characteristics of classes, and thus often fail to properly reflect the cohesiveness of classes. To cope with such a problem, we propose a new cohesion measure where the characteristics of classes are incorporated. Our cohesion measure takes into account the members that actually have impact on the cohesiveness of a class, and is defined in terms of the degree of the connectivity among those members. We develop a cohesion measurement tool for C++ programs, and perform a case study on a well‐known class library in order to demonstrate the effectiveness of our new measure. By performing principal component analysis, we also demonstrate that our measure captures a new aspect of class properties which is not captured by the existing cohesion measures. Copyright © 2000 John Wiley & Sons, Ltd.  相似文献   

19.
Software reuse is widely believed to be a key to improving software productivity and quality in conventional software. In expert systems, much of the knowledge has been compiled (i.e., compressed and restricted into effective procedures) and this makes reusability difficult. One of the issues in modeling expert systems for enhanced reusability is capturing explicity the underlying problem solving designs. Principled knowledge representation schemes have been used to model components of complex software systems. However, the potential for applying these principled modeling techniques for explicitly capturing the problem solving designs of expert systems has not been fully explored. To overcome this omission, we use an Artificial Intelligence knowledge representation scheme for developing an ontology of the software components to facilitate their classification and retrieval. The application of our ontological approach is of both theoretical and practical significance. This method facilitates the reuse of high-level design. We illustrate the application of principled domain modeling using two real world applications of knowledge-based systems.  相似文献   

20.
针对软件开发早期阶段软件资源重用进展缓慢,反射机制在代码重用方面取得成功但还没有用于软件体系结构及其组成元素的重用等问题,提出一种支持软件体系结构设计时重用的反射机制,概述基于反射机制的软件体系结构重用方法。给出基于反射机制的软件体系结构重用的支撑工具ArchBean Studio的设计和实施过程。利用该方法,设计人员通过重用软件体系结构及其组成元素能高效地完成软件设计任务。  相似文献   

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