维护开发中敏捷方法的应用

该文主要介绍了敏捷软件开发的几种主要方法以及在维护性开发中的实际应用，并与传统重型开发法进行了对比，表明敏捷软件开发方法在软件开发中的一些先进之处及存在的一些问题；同时介绍了软件的维护及维护性开发的重要意义，在此基础上提出将敏捷方法用于软件的维护性开发中，对该应用的可行性和具体的实现过程给出了分析，并给出开发过程的实例说明，证明了该方法的有效性，说明敏捷方法在软件维护性开发中的应用具有非常强的实际应用研究价值。     

基于构件组装的信息处理软件开发方法

基于构件组装的软件开发方法被认为是提高软件开发效率和质量的有效途径,在软件开发中得到了越来越多的应用.文中分析了软件开发的现状,基于信息处理领域提出了一种构件组合式软件开发方法和适合这种开发方法的构件实现模型.介绍了这种构件组合式软件开发方法的基本实现原理,和在该方法指导下的软件开发过程.通过搭建一个实际的智能文本处理系统证明了该开发方法不仅简化了软件复用,提高了软件开发效率和质量,同时基于这种方法开发的软件具有较高运行效率.     

可复用构件技术在工程造价软件开发的研究

软件复用技术为解决软件危机、提高软件生产效率和质量提供一个现实可行的解决方案.以工程造价软件开发过程为实例,研究软件复用技术在工程造价软件开发过程各个阶段的应用,分析并设计一个建设工程造价软件的分层模型架构,根据工程造价工作流程的特性,结合软件工程开发原理,提出了在工程造价领域软件开发适用纵向复用,实现了在建设工程造价软件开发中在不同层次应用构件复用技术,有效缩短软件开发的周期,提高了软件开发的效率和质量.     

PETRI 网在软件过程建模及过程实施中的应用

软件过程技术，作为一种保证软件开发质量和效率的方法，在许多软件企业引起了重视和应用。本文从条件／事件网出发，应用标记PETRI网，并针对其在软件过程中的特点，给出了软件过程和软件过程网合理性的定义，根据工作流领域的结论，可以应用经典PETRI网的工具验证其合理性。在此理论基础上，提出了传统的软件过程结构表示成软件过程网的规则。并研究其在实践中的应用，最后用一个实际软件开发企业中的应用实例详细解释了所提出的理论及应用。     

统一软件开发过程分析

文中对基于对象的软件开发方法——统一软件开发过程进行了探讨，并分析其特点和优点。介绍了该方法提出的背景，即软件危机的出现和面向对象方法的提出及发展。简述了软件开发过程并由此引申出统一软件开发过程的定义，针对统一软件开发工程所具有的用况驱动、构架为中心、迭代和增量的过程的显著特点，分别从这三个方面加以详细具体的分析，最后概括总结了统一软件开发过程在实际应用中的优点。     

基于SPC的软件过程度量技术的研究

本文将统计过程控制原理SPC应用于软件过程度量。在介绍SPC原理的基础上,讨论了休哈特控制图的构成和分析方法,结合实例,深入分析了SPC在软件过程度量中的应用。     

基于构件组装的信息处理软件开发方法

基于构件组装的软件开发方法被认为是提高软件开发效率和质量的有效途径,在软件开发中得到了越来越多的应用。文中分析了软件开发的现状,基于信息处理领域提出了一种构件组合式软件开发方法和适合这种开发方法的构件实现模型。介绍了这种构件组合式软件开发方法的基本实现原理,和在该方法指导下的软件开发过程。通过搭建一个实际的智能文本处理系统证明了该开发方法不仅简化了软件复用,提高了软件开发效率和质量,同时基于这种方法开发的软件具有较高运行效率。     

在当前计算机软件开发技术的应用研究

针对现如今的软件开发的分析,来阐述当今软件开发的特点及软件开发的原则,并通过对其方法的探讨,对计算机软件开发技术应用过程进行了解,以便于开发出高质量,高扩展性及高可靠性的软件。     

统一软件开发过程分析

文中对基于对象的软件开发方法--统一软件开发过程进行了探讨,并分析其特点和优点.介绍了该方法提出的背景,即软件危机的出现和面向对象方法的提出及发展.简述了软件开发过程并由此引申出统一软件开发过程的定义,针对统一软件开发工程所具有的用况驱动、构架为中心、迭代和增量的过程的显著特点,分别从这三个方面加以详细具体的分析,最后概括总结了统一软件开发过程在实际应用中的优点.     

应用统计过程控制监控软件测试过程

统计过程控制(SPC)是通过使用控制图来制定过程决策和预测过程行为的一种质量控制方法.SPC的方法用于软件过程,可以通过描述过程行为来监控过程的稳定性.讨论了将SPC应用于软件测试过程,针对测试过程中所度量的不同分布形式的数据而采用不同计算方式应用SPC的控制图,然后根据控制图判断测试过程是否稳定,并分析可能存在的可归属原因.     

先进控制在环管聚丙烯装置上的应用

针对Himont工艺的大型聚丙烯工业装置质量指标实时控制的复杂性,本文提出了一种通过表观能量平衡反推物料平衡并结合经验数据回归的质量指标实时推断方法。利用基于闭环辨识的鲁棒内模控制方法实现了的大型聚丙烯工业装置的先进控制。所提先进控制解决方案已成功应用于某炼油厂的聚丙烯工业装置,长周期的运行结果证实了所提解决方案可以有效地减少产品质量波动,提高产率并减轻操作人员的工作强度,取得了显著的经济效益。     

Optimal determination of the process means,process tolerances,and resetting cycle for process planning under process shifting

A proper process planning can significantly improve a producer’s competitiveness in regard to delivering high-quality and low-cost products with short development-cycle time. Because of process shifting, the produced quality may change during a production run and lead to early product failures. Hence, to compensate for such process shifting, there is a need to determine the optimal resetting cycle before the next setup as well as the initial settings at the beginning of a production run. As the process tolerance is one of the key elements in the production process, determination of the process tolerance must also be considered. Due to the interdependence among decision variables, a model for process planning is proposed to simultaneously determine the initial setting, process tolerance, and resetting cycle, so that the average total cost, in a period of resetting cycle, which includes the setup cost, quality loss, failure cost and tolerance cost, is minimized under process-capability limits, functionality requirements, and conforming rate restrictions.     

Interaction between process design and process control: economic analysis of process dynamics

A method is presented to assess the impact of disturbances on plant economic performance. The method is suitable for use during process design, and can be used to help evaluate alternative process structures or alternative control schemes for a given process. Non-linear steady-state optimization is performed to determine the best operating point in the absence of disturbances. Frequency response analysis of a linearized plant dynamic model is used to estimate the effects of plant disturbances on this ideal performance under a variety of control strategies. The method is illustrated on a case study involving minerals flotation circuit design.     

计算机与过程工程、过程系统工程

在回顾50年来计算机与信息技术发展及其影响的基础上,考察了过程工业及过程工程的发展特点,探讨了过程工程与过程系统工程两学科的同异.最后,研究了过程工业未来发展对过程工程、过程系统工程的挑战.     

A process mining-based analysis of business process work-arounds

Business process work-arounds are specific forms of incompliant behavior, where employees intentionally decide to deviate from the required procedures although they are aware of them. Detecting and understanding the work-arounds performed can guide organizations in redesigning and improving their processes and support systems. Existing process mining techniques for compliance checking and diagnosis of incompliant behavior rely on the available information in event logs and emphasize technological capabilities for analyzing this information. They do not distinguish intentional incompliance and do not address the sources of this behavior. In contrast, the paper builds on a list of generic types of work-arounds found in practice and explores whether and how they can be detected by process mining techniques. Results obtained for four work-around types in five real-life processes are reported. The remaining two types are not reflected in events logs and cannot be currently detected by process mining. The detected work-around data are further analyzed for identifying correlations between the frequency of specific work-around types and properties of the processes and of specific activities. The analysis results promote the understanding of work-around situations and sources.     

Statistical process control: analyzing space shuttle onboardsoftware process

Demand for increased software process efficiency and effectiveness places measurement demands on the software engineering community beyond those traditionally practiced. Statistical- and process-thinking principles lead to the use of statistical process control (SPC) methods to determine the consistency and capability of the processes used to develop software. The authors use data and analysis from a collaborative effort between the Software Engineering Institute (a federally funded research and development center sponsored by the US Department of Defense) and the Space Shuttle Onboard Software Project as a vehicle to illustrate the analytic processes analysts frequently encounter when using SPC     

A process matching approach for flexible workflow process reuse

Matching between two workflow processes is the key step of workflow process reuse. This paper presents an inexact matching approach for flexible workflow process reuse. A multi-valued process specialization relationship is defined based on the definition of activity specialization and the characteristics of workflow process. The matching degree between two workflow processes is determined by the matching degrees of their corresponding sub-processes or activities. The matching degree between two activities is determined by the activity-distance between them in the activity-ontology repository. A set of process specialization rules enables a new process matching to be derived from the existing matchings. Users are provided with an SQL-like command to retrieve the required processes in an inexact query condition from the workflow-process-ontology repository.     

A modular laboratory for process control and process engineering

A modular laboratory to support process control and process engineering teaching has been designed and commissioned. The Instrumentation and Control Laboratory in the School of Engineering, Murdoch University, is unique in that it contains no fixed experiments. Rather, an experiment is constructed for a particular teaching concept from the range of process modules available. After use, the experiment is disconnected, and its components used for other experiments or returned to a store. This modular approach has allowed great flexibility in the construction of experiments to meet current learning objectives, while proving very cost effective. The reuse of equipment has avoided duplication and provided a much higher usage factor, allowing a wider menu of experiments for less investment. The other unique aspect of the laboratory is its centralised data acquisition and control system in which every measurement and control signal is linked to a central server and then made available across a network.     

多变量造纸过程的开环辨识研究

为了得到造纸过程的精确模型,对造纸过程的开环辨识进行了仿真研究,得到了模型的时间常数与辨识的采样时间有密切的关系和增加采样时间可以提高辨识精度的结论。