基于JAVAEE的工作流引擎设计的探究

工作流系统作为办公自动化软件重要组成部分,其不仅能将企业相应数据有效的和网络连接起来,同时也能将之前单独的计算机个体组成一个有机的并能自动化运行的网络系统,以便为企业提供更多信息,为企业更好的服务。就目前来看,工作流系统不仅仅在办公自动化软件中应用,在其他生产销售领域也得到了广泛应用。但是这种工作流数据在一定程度上还处于运转过程中,而新的基于JAVAEE工作流引擎程序在目前不同企业使用中,其效果还是比较可观的。本文主要从工作流管理系统概念及构成、JAVAEE技术概况、基于JAVAEE工作流引擎的设计等方面,对基于JAVAEE的工作流引擎设计进行相应探讨。     

基于STC89C52的简单汉字书写笔设计

该文介绍一种简单汉字自动书写笔的设计方案。该自动书写笔主要由微处理器STC89C52、电机驱动模块、LCD显示模块、键盘以及机械执行机构组成。书写笔可以通过微处理器来控制完成简单汉字、数字和英文字符的书写,以及多种图形的绘制功能。该文详细地描述了系统的硬件组成和软件方案,并且给出了系统的硬件板图和软件程序源代码。     

一种基于ALM的Modem自动化测试系统

自动化测试能够减少手动测试带来的不便和干扰,提高测试效率。测试自动化是软件测试的一大趋势。本文介绍了一种基于ALM工具的Modem自动化测试系统,重点介绍其系统框架、处理流程及软件架构,最后通过一个具体的测试例进行了进一步说明及验证。     

基于工作流的通用备件管理系统设计

采用工作流技术,用户可以根据企业自身的实际业务流程来自定义工作流,从而实现业务流程的自动化。备件管理是每个企业都必须面对的环节,是企业ERP运行的重要组成部分。采用软件工程的方法,通过分析企业职能部门和用户的工作流程,结合工作流技术,按照特性要求和统一原则,采用层次化、组件化、松耦合思想设计并实现了通用型企业备件管理系统。     

DBMS生成器DOMDG的实现

软件自动化开发一直是软件工程的热门话题。提出了一种基于构件的DBMS生成器DOMDG，该生成器可以根据DBMS需求模型生成相应的DBMS软件，实现DBMS软件的自动化开发。讨论了DOMDG的系统结构，对系统中涉及的各类字典进行了描述，介绍了构件和构件组装功能的设计方法，介绍了一个由DOMDG生成的DBMS实例。由DOMDG生成的DBMS具有高可靠性、易扩展、易维护等特点。     

OpenCV在焊缝实时检测与处理系统中的应用

机器视觉系统是集机械、光电、控制、计算机和数字图像处理等技术于一体的高度自动化系统,能够有效地提高产品的质量和产量,现已广泛应用于工业当中。随着科技的发展,对焊接的质量与效率的要求越来越大,为此有必要设计一套行之有效的,在焊接自动跟踪技术中能够在线检测焊缝并进行处理的焊缝实时检测与处理系统。文中在VC＋＋6．0开发环境中设计了一种采用Otsu自动选择阈值和Canny算子检测边缘,基于OpenCV的焊缝实时检测与处理算法,实验结果表明基于该算法的系统实时性高、效果好、检测正确快速。     

利用UML建模设计指挥自动化软件系统

指挥自动化系统是C4ISR的重要组成部分，主要用于系统的指挥、控制和协调，指挥自动化应用系统的开发是一个复杂的软件工程，结合一个指挥自动化系统工程项目，利用统一建模语言(UML)来对该系统建模和设计，展示了UML在开发指挥自动化系统的运用，表明软件工程的方法可以有效地运用于指挥自动化系统的开发。     

Industrial Applications of Software Synthesis via Category Theory—Case Studies Using Specware

Over the last two years, we have demonstrated the feasibility of applying category-theoretic methods in specifying, synthesizing, and maintaining industrial strength software systems. We have been using a first-of-its-kind tool for this purpose, Kestrel's Specware^TM software development system. In this paper, we describe our experiences and give an industrial perspective on what is needed to make this technology have broader appeal to industry. Our overall impression is that the technology does work for industrial strength applications, but that it needs additional work to make it more usable. We believe this work marks a turning point in the use of mathematically rigorous approaches to industrial strength software development and maintenance.It is interesting to note that when this technology is applied to software systems whose outputs are designs for airplane parts, the design rationale that is captured is not only software engineering design rationale, but also design rationale from other engineering disciplines (e.g., mechanical, material, manufacturing, electrical, human factors, etc.). This suggests the technology provides an approach to general systems engineering that enables one to structure and reuse engineering knowledge broadly.     

自动化工程软件的设计方法

随着计算机编程技术在自动化工程软件应用中的发展,越来越多的PLC编程系统均支持新的程序设计理念和方法。为了使得这些方法和理念能够在PLC的编程中得以利用,提高PLC程序的编程效率和程序质量,结合多年的自动化工程软件设计和开发经验,以西门子S7系列PLC为基础,探讨了面向对象的程序设计理念和方法在程序设计和开发中的应用,提出了适应自动化工程要求的软件设计原则、步骤和方法。实践证明,该方法可以缩短程序设计时间,提高程序使用的可靠性。     

The BT intranet: information by design

British Telecom's intranet hosts an array of information products that are an integral part of the way its employees do business. The article presents a glimpse of how BT uses concepts like media engineering to develop usable and maintainable information products-information by design. The BT intranet supports several information products that are now an everyday part of business within BT: the desktop directory not only supplies contact information, but also shows where people fit into the organization; a validated software site contains packages that have been tested and approved for use within the company; administrative services, such as expense claims, can be filled out and validated automatically as they flow through the organization, removing much of the manual work; internal news and guidance documents are posted on the intranet; and proposals for research and development projects, including their subsequent approval and delivery record, are recorded and tracked by an online system. Other documents provide details of the company's systems architecture, training programs, internal job vacancies, standards activities, and business strategy. We describe two applications of particular interest-a company-sponsored degree program and an engineering project data exchange site     

OPC数据访问服务器双向通信机制的实现

VCS2是由广东肇庆维光仪表有限公司委托开发的小型DCS系统,是一种针对流程工业中小型单元设备的过程控制、以提供控制品质为核心、以工程控制为重点的完整的小型DCS,主要应用在各种中小型工厂的控制系统中。本文详细介绍了小型DCS系统VCS2的0PC数据访问服务器开发过程中双向通信机制的实现。     

Visionary prototyping

Today, besides introducing intelligence directly into equipment/systems through embedded microcomputers and providing virtual prototyping through enhanced computer-aided design/computer-aided engineering (CAD/CAE) facilities, information now is well regarded as an essential part of the integrated design approach whereby all members of the prototype development and manufacturing automation team can work closely together throughout the design and manufacturing cycle. The article focuses on two subtopics. The first is the development of a theory for prototyping discrete-event and hybrid systems and its applications. In discrete-event dynamic systems (DEDS), state transitions are caused by internal, discrete events in the system. An overview for the development of a simple graphical environment for simulating, analyzing, synthesizing, monitoring, and controlling discrete-event and hybrid systems is also presented. The second focus is on prototyping machine vision for real-time automation applications. We discuss the problems associated with traditional machine vision systems for cost-effective, real-time applications, novel alternative system design to overcome these problems, and the new trends of modern vision sensors. Modern smart sensors provide the features of traditional machine vision systems at less than half of the usual price by eliminating the signal-conversion electronics, fixed-frame rates, and limited gray-scale quantization. The camera, image-acquisition electronics, and computer are integrated into a single unit to allow dynamic access to the charge-coupled devices without image float or flutter. We also present a physically accurate image synthesis method as a flexible, practical tool for examining a large number of hardware/software configuration combinations for a wide range of parts     

形式概念分析在软件工程中的应用

随着现代软件工程的不断发展,软件开发的效率显得尤为重要。如何高效率地开发出满足各种不同用户需求的软件已成为当今软件工程开发中的热点。传统的软件开发由于过分地依赖于文档,其开发效率及其灵活性受到了很大的影响。文中描述了形式概念分析方法这种软件工程中新型的设计方法,用以发现一群类所表现出的共同或者重复的特征。这些共同特征将通过一种表现所有特征局部关系的格的形式,发现跟其相关的那些关联,进而更合理地安排软件开发的各项进度,提高软件开发的效率。文中也描述了形式概念分析方法在软件工程一些具体阶段的应用。     

南疆铁路电源及环境集中监控系统的设计与开发

南疆铁路电源及环境集中监控系统一种基于SDH光纤通信网络的监控系统，开发和完善这样一个网络管理系统需要涉及到包括网络通信技术、信息系统技术、数据库技术以及现代软件开发技术等多方面的内容，文章介绍了在系统开发过程中所采用的一些同上述内容相关的关键性技术及方法。     

油库仿真系统设计

当前，随着科学技术的高速发展，各行业的自动化程度都有了很大程度的提高。油库作为石油化工领域不可或缺的重要组成部分，它的自动化程度也亟待提高，研制油库的仿真系统成为当前的一项新课题。该文介绍了油库仿真系统的构成和功能。在设计过程中，使用VC 来编制计算程序，根据已建立的各种数学模型对油库管道系统的动态过程参数进行计算；同时使用工业组态软件——“组态王”来制作图形界面和建立数据库，将数据库中的变量与图形界面中的各图元相连接，通过实时更新数据库来驱动画面。虽然该系统目前还仅局限于教学，但是，在教学上使用成熟之后，会逐渐地应用于油库现场。     

面向能力培养的化工仿真实习软件MES

以能力培养为目标,我们编制了化工仿真实习软件ＭＥＳ,在软件中运用现代化的教学手段,如二维、三维运历,视频,音频技术,工业仿真技术等,解决原来化工类专业实习教学中的问题,培养学生的工程实践能力,改善教学效果,该软件以具有代表性的年产３０万吨合成氨装置为蓝本,讲述了化工工艺、设备测控仪表及ＤＣＳ等方面的知识,并备有开测验题库及仿真培训软件部分,该软件系统在我校试用获得了很好的教学效果。     

应用Web Services技术实现的软件重用

随着计算机技术在工程领域内的广泛应用,为了开发一些实用的应用软件,对一些大型软件的重用和软件二次开发的研究成为趋 势,该文介绍了如何使用Web Services和软件的自动化技术实现软件重用,使应用软件更加模块化和易操作,也使得软件的二次开发更为 容易。     

办公自动化软件产品线的研究与设计

软件产品线是一组具有可管理的公共特性的产品集合。选取网络办公自动化（OA）系统作为特定的研究领域,在分析此领域中产品的共性后,给出了OA系统软件产品线的实现方法。具体描述了OA系统产品线的需求工程,OA系统产品线核心资产的提取,并以科技项目管理系统为例说明了如何将核心资产应用到具体的产品开发中。     

办公自动化理性浅析

办公自动化是一个内涵丰富的大概念。我们需要运用系统工程的思想和方法,从多角度、多层次思考和把握办公自动化内涵和外延。本文围绕OA相关要素,结合有关案例,从目标定位、管理思想、功能平台、设备选择、软件技术、实施策略等六个维度对办公自动化进行了审视、探索和诠释,提出了一种办公自动化的推进理性。     

Product design logic for an intelligent product modelling system

Recent research in CAD systems has been conducted to realize intelligent processing. Several CAD systems and product modelling systems have been developed using AI techniques. However, in order to develop more intelligent CAD systems, the design logic which connects the functional requirement to the geometric and the technological information of the designed product must be evaluated.

A product model used in such intelligent CAD systems has to include not only the geometric and the technological information of the product but also the designer's thought process which explains the design logic.

Design logic is generally divided into two parts. One is the generalized design logic which is commonly used in the conceptual design of mechanical products. The other is the product specified design logic which is used in the fundamental and detailed design phase. Different logic is applied to each product. This type of design logic is often used in modification design and compilation design, where the dimensions of parts have to be modified according to different functional requirements. When the dimensions and accuracies of the products are defined in connection with the functional requirements through design logic, the CAD system can automatically make decisions according to the given requirements. In this paper, suitable presentation formats and processing functions for these two types of design logic are discussed.

The importance of design logic in product modelling is proven through several case studies in this paper. As a conclusion, the intelligent product modelling system is developed, which should expedite the progress of design automation in the near future. In conceptual design, the design logic is processed in the modelling system and the product structure, with the technological information decided automatically from the functional requirement. Automation in the detailed design phase is also facilitated by the modelling system using the product specified design logic in the product model.