应用软件自动化开发的实现研究

基于组装软件技术,提出了一种实现应用软件开发自动化的新方法,给出了可进行自动化开发的应用软件系统架构和自动化开发平台架构.设计实现了集方法和工具于一体的应用软件自动化开发平台,并对业务组件的自动生成和基于业务流程的应用软件系统组装作了进一步研究.该方法是对传统组构件技术和工作流技术的突破,已成功获得应用.     

A methodology for the automation of medium or small manufacturing companies

Many products are produced by discrete manufacturing plants in lots of 100 items or fewer. Currently, most small and medium-sized manufacturing companies are far from computer-integrated automation. New computer-integrated manufacturing systems with their associated hardwares require tremendous initial investments that are beyond the means of most small and medium-sized companies. In this paper we investigate how these companies can upgrade and automate their existing facilities at a minimal and viable cost. In Section 2 we discuss main references (books and trade journals) that contain detailed information on software packages for automation. In Section 3 we discuss the criteria for selecting software packages. In Section 4 we discuss how to use the obtained information to create a data base of different alternatives. In Section 5 we outline different areas of manufacturing. For illustrations, we discuss manufacturing planning, intelligent systems, and computer areas. In Section 6 we discuss a new method for the selection of the best alternative using the data base. The method is a simple interactive paired comparison method based on a computer package developed on a personal computer.     

Agent virtual machine for automation controllers: Example application: Shipboard automation

We are interested in providing an agent infrastructure for truly distributed control. Requirements include multiple language implementations, so that this agent host environment can exist in both real-time controllers and contain the ability to operate with external agent systems. Our first infrastructure, the Autonomous Cooperative System (ACS), accomplished these goals, but presented other issues. Although ACS has been successfully deployed on commercial controllers, new releases of controllers will cause complications in the evolution of the software and adoption of future functionality. We need to establish a formal integration procedure of the agent functionality with the controllers and to transform the underlying system into a fully integrated and open heterogeneous system. We use a shipboard automation example to demonstrate the use of the agent virtual machine. With this system, the shipboard automation system is designed as a distributed and survivable environment, thereby spreading intelligence throughout the controllers and not in central locations.     

Mockup‐driven fast‐prototyping methodology for Web application development

Web application development can be very complicated without an appropriate framework, architecture and application model. A good implementation model can help application developers communicate with clients, consolidate the design before starting the development, speed up the development, and make the code highly reusable. This paper proposes a mockup‐driven fast prototyping methodology (MODFM) for the development of Web applications. It is built on the most recent Web technologies: EJB, JSP, Servlet, XML, Struts, and Web application server. A two‐tier Model‐View‐Controller (MVC) architecture is proposed as the underlying backbone and a supporting environment is tailored specifically in order to enable development. Two basic supporting tools are provided: the dynamic menu generator and the generic code generator, which produce code for front‐end, back‐end and database schemas. MODFM helps to generate fully functional mockup systems for the client to review at an early analysis stage, and continues to provide guidance throughout follow‐on development phases. Real‐life experiences on the use of this methodology in industry are presented as examples. Copyright © 2003 John Wiley & Sons, Ltd.     

Adaptable cache service and application to grid caching

Caching is an important element to tackle performance issues in largely distributed data management. However, caches are efficient only if they are well configured according to the context of use. As a consequence, they are usually built from scratch. Such an approach appears to be expensive and time consuming in grids where the various characteristics lead to many heterogeneous cache requirements. This paper proposes a framework facilitating the construction of sophisticated and dynamically adaptable caches for heterogeneous applications. Such a framework has enabled the evaluation of several configurations for distributed data querying systems and leads us to propose innovative approaches for semantic and cooperative caching. This paper also reports the results obtained in bioinformatics data management on grids showing the relevance of our proposals. Copyright © 2009 John Wiley & Sons, Ltd.     

Test development for communication protocols: towards automation

In this paper we give an introduction to methods and tools for testing communication protocols and distributed systems. In this context, we try to answer the following questions: Why are we testing? What are we testing? Against what are we testing?... We present the different approaches of test automation and explain the industrial point of view (automatic test execution) and the research point of view (automatic test generation). The complete automation of the testing process requires the use of formal methods for providing a model of the required system behavior. We show the importance of modelling the aspects to be tested (the right model for the right problem!) and point out the different aspects of interest (control, data, time and communication). We present the problem of testing based on models, in the form of finite state machines (FSMs), extended FSMs, timed FSMs and communicating FSMs, and give an overview of the proposed solutions and their limitations. Finally, we present our own experience in automatic test generation based on SDL specifications, and discuss some related work and existing tools.     

A methodology for expert systems development

There are virtually no methods or techniques available for developing expert systems in law. Further, with the exception of the UK government's Central Computer and Telecommunications Agency project, GEMINI, [1] there has been no attempt to lay the foundations for an expert systems development methodology in general. This paper discusses a number of conventional software engineering methodologies and explains why the spiral model is most suited to the development of legal expert systems. This also happens to be the same model which was advocated by the results of the GEMINI project.[2]     

基于VB开发的报表在自动化工程中的应用

针对组态软件内置报表生成的报表格式单一,无法满足用户的各种要求.提出了通过VB、Access及Excel二次开发外挂报表来满足用户对报表的各种要求,生成各种报表格式.文章介绍了通过VB查询存贮在Access数据库里的数据,生成Excel表格报表的方法.实践证明,该方法能很好地满足工程中不同用户的要求.     

Towards a comprehensive methodology for KBS development

Abstract: The vitality of effective methods and processes for developing knowledge-based systems (KBS) is examined. The paper discusses what should be expected from a methodology. Have their advocates been getting it all wrong all the way? That is certainly a suggested view put forward. The criticism includes an articulation of the major schools of thought in developing KBS; their implicit assumptions and philosophies, especially the prototyping options, are presented in the light of this paper. After the criticism, the philosophical basis of a new comprehensive KBS development methodology is presented. This breeds the line model of development, which in turn creates what is suspected to be an essential concept of thought in the developer's mind.     

A design methodology for PC-expansion card development

The development of PC-expansion cards has been an on-going process for which there are no existing formal methodologies. As newer buses emerge, the complexity of the hardware and software design increases. This paper aims to provide an integrated understanding of the hardware and software aspects involved in the development of expansion cards. A design architecture has been designed to guide such developments by encapsulating all the pertinent design factors into a layered model, known as the Adapter Development Model. The focus is on mitigation of the process complications, which have proven its prowess in disabling the successful completion of such projects that are subjected to manpower and time constraints. Concentration is placed on the PCI platform and an applicability example based on MPEG2 PCI design is considered.     

A methodology for security assurance-driven system development

In this work, we introduce an assurance methodology that integrates assurance case creation with system development. It has been developed in order to provide trust and privacy assurance to the evolving European project PICOS (Privacy and Identity Management for Community Services), an international research project focused on mobile communities and community-supporting services, with special emphasis on aspects such as privacy, trust, and identity management. The leading force behind the approach is the ambition to develop a methodology for building and maintaining security cases throughout the system development life cycle in a typical system engineering effort, when much of the information relevant for assurance is produced and feedback can be provided to system developers. The first results of the application of the methodology to the development of the PICOS platform are presented.     

配网自动化系统的集成方法

配网自动化系统的集成建设方法的要点是,配网自动化系统除了直接采集配电终端的数据之外,还通过遵循IEC 61970 CCAPI系列的规范,搭建PI数据库系统,以多种方式实现配网自动化系统与调度自动化系统、配网地理信息系统和计量自动化系统的数据交互,实现动态数据、静态参数和模型、图形的集成.该集成方法能够满足配网自动化系统对数据的实时性要求.     

Edge computing and machinery automation application for intelligent manufacturing equipment

The aim is to explore the machinery automation of intelligent manufacturing equipment under the edge computing algorithm and guarantee the safety of intelligent equipment. Given the problems in the machinery automation of intelligent manufacturing equipment in the current mechanical field, the intelligent manufacturing equipment model based on edge computing is implemented through edge computing technology and is divided into three modules: data acquisition, data processing, and data communication. Finally, the proposed model performance is analyzed under simulation. The results show that in the security performance analysis, different edge nodes can maintain the optimal strategy when the cost is minimized. When the amount of task data is less than 8 Mb, the proposed intelligent manufacturing equipment model based on edge computing has a lower delay (less than 3,000 ms), lower energy consumption (less than 450 J), and higher reliability (more than 95%). Therefore, the results indicate that the proposed intelligent manufacturing equipment model based on the edge computing pattern has higher reliability while ensuring safety performance, which provides an experimental reference for the development of machinery automation of intelligent equipment in the current mechanical field.     

敏捷方法在软件项目开发中的实践

目前很多企业内中小型软件项目面临开发时间紧迫、人手不足、需求不断变化的困难,传统重量级的软件开发方法无法应对这样的挑战.敏捷方法是基于实践的软件开发方法学,为解决这类轻量级项目管理和开发所碰到的问题提供了新的思路.通过分析敏捷方法的主要目标、观点和原则,并结合一个实际的管理信息系统项目开发,从项目计划、项目文档、重构的改进和项目维护的4个方面探讨了敏捷方法的实践应用.实践证明,采用敏捷方法的观点和原则进行必要的改进,能取得项目开发的成功.     

Hybrid morphological methodology for software development cost estimation

In this paper we propose a hybrid methodology to design morphological-rank-linear (MRL) perceptrons in the problem of software development cost estimation (SDCE). In this methodology, we use a modified genetic algorithm (MGA) to optimize the parameters of the MRL perceptron, as well as to select an optimal input feature subset of the used databases, aiming at a higher accuracy level for SDCE problems. Besides, for each individual of MGA, a gradient steepest descent method is used to further improve the MRL perceptron parameters supplied by MGA. Finally, we conduct an experimental analysis with the proposed methodology using six well-known benchmark databases of software projects, where two relevant performance metrics and a fitness function are used to assess the performance of the proposed methodology, which is compared to classical machine learning models presented in the literature.     

A methodology for construct development in MIS research

This paper presents a comprehensive methodology for developing constructs in MIS research. It is applicable to both individual and organizational levels of analysis, depending on the nature of the concept under study. The methodology is presented as a research guide progressing through three stages: (1) domain definition, (2) instrument construction, and (3) evaluation of measurement properties. The methodology addresses six key measurement properties (content validity, factorial validity, reliability, convergent validity, discriminant validity, nomological validity), which are discussed in detail. An assessment of the proposed methodology indicates that its adoption in MIS research would greatly improve the rigor of construct development projects. This is evidenced by the wide range of quality publications that have used its techniques and its performance when compared to a number of prominent standards for assessing construct development research.     

石油化工业自动化仪表的运用

经济全球化背景下,我国的工业产业正朝着多元化方向发展,石油化工业的产业链范围正积极拓宽,适应了国内经济体制改革的需要。顾及到中国科学技术水平与发达国家相比存在明显的差距,为保证石油化工业生产活动的有序进行,必须要配备专业的质量检测设备,以此来适应新产业结构调整的需要。电子商务模式下,石油化工企业的生产经营走向办公自动化,其对产品生产质量的要求更加严格,为自动化仪表配备专业的自动化操控模块,可显著降低人工操作设备的难度。针对这一点,本文分析了石油化工业自动化仪表的运用。