OOFMD软件的重用与集成分析

软件重用是提高软件生产率，降低软件的生产成本的有力手段，本文介绍了一个支持软件重用的面向对象市场需求预测系统－ＯＯＦＭＤ，通过ＯＯＦＭＤ系统的重用与集成机制分析，给出了软构件的定义和复合构件的复合规则，阐述软件重用和软件集成的原理和实现机制。     

ODBC技术在ObjectARX程序中的应用

简要介绍了ＯＤＢＣ的工作原理,主要探讨了在基于ＭＦＣ的ＯｂｊｅｃｔＡＲＸ应用程序中运用ＯＤＢＣ的方法,利用ＭＦＣ数据库类和直接采用ＯＤＢＣ函数两种方法实现对数据库的操作,给出了部分应用实例。     

ODBC技术在ObjectARX程序中的应用

简要介绍了ＯＤＢＣ的工作原理,主要探讨了在基于ＭＦＣ的ＯｂｊｅｃｔＡＲＸ应用程序中运用ＯＤＢＣ的方法,利用ＭＦＣ数据库类和直接采用ＯＤＢＣ函数两种方法实现对数据库的操作,给出了部分应用实例。     

ODBC与ObjectARX结合开发产品数据管理应用程序

本文首先讨论了 ＡｕｔｏＣＡＤ２０００中 ＯｂｊｅｃｔＡＲＸ ＳＤＫ的特点和编程环境及ＭＦＣ中的ＯＤＢＣ数据库开发方法,然后讨论了将二者结合起来进行 ＡｕｔｏＣＡＤ 二次开发,设计产品数据管理应用程序的方法。在 ＯｂｊｅｃｔＡＲＸ中应用ＭＦＣ,几乎可以利用ＭＦＣ的所有功能和资源,将两者的优点加以综合,大大增强了ＡＲＸ应用程序的功能。     

一种降低ADSL系统复杂度的方法

非对称数字用户环路（ＡＤＳＬ）选择离散多音频ＤＭＴ（Ｄｉｓｃｒｅｌｅ Ｍｕｌｔｉｔｏｎｅ）为系统的传输码,针对ＤＭＴ的ＩＦＦＴ／ＦＦＴ单元计算量大、硬件要求高等特点,本文提出了一种降低ＩＦＦＴ／ＦＦＴ单元复杂度的ＣＲ ＤＭＴ（Ｃｏｍｐｌｅｘｉｔｙ Ｒｅｄｕｃｅｄ ＤＭＴ）结构。与传统的ＤＭＴ及一些改进方案相比较,该结构具有原理简单,易于实用等特点。     

ARTISTIC CHARM OF MANDELBROT FAMILY AND JULIA FAMILY——A FURTHER DISCUSSION CONCERNING MANDELBROT FAMILY AND JULIA FAMILY

ＡＲＴＩＳＴＩＣＣＨＡＲＭＯＦＭＡＮＤＥＬＢＲＯＴＦＡＭＩＬＹＡＮＤＪＵＬＩＡＦＡＭＩＬＹ———ＡＦＵＲＴＨＥＲＤＩＳＣＵＳＳＩＯＮＣＯＮＣＥＲＮＩＮＧＭＡＮＤＥＬＢＲＯＴＦＡＭＩＬＹＡＮＤＪＵＬＩＡＦＡＭＩＬＹＷａｎｇＹａｎＴａｏＭａｏｑｉＸｕＭａ...     

基于PDM框架的并行集成技术研究

本文具体论述了基于ＰＤＭ的产品集成开发体系结构及系统集成框架。依据并行工程的产品开发哲理及细化设计循环的思想,分析了ＣＡＤ／ＤＦＭ／ＣＡＰＰ／ＣＡＭ并行集成的实现方法。通过ＯＤＢＣ标准接口的方式实现了与ＭＩＳ、ＭＲＰⅡ系统的集成,有效地达到了企业内部信息资源的共享。基于ＰＤＭ框架来实现ＣＡＤ／ＣＡＰＰ／ＣＡＭ的并行集成是一种较为理想的模式。     

基于TMS320C54X的DTMF信号检测

ＤＴＭＦ信号是音频电话中的拨号信号,广泛应用于新一代电话机。本文介绍一种基于ＴＭＳ３２０Ｃ５４Ｘ系列ＤＳＰ芯片的ＤＴＭＦ信号的检测,解决了以往所用方法的不足之处,使得ＤＴＭＦ信号检测变得准确、迅速和灵活,从而可能实现多种的电信增值的服务。     

基于PDM框架的并行集成技术研究

本文具体论述了基于ＰＤＭ的产品集成开发体系结构及系统集成框架。依据并行工程的产品开发哲理及细化设计循环的思想,分析了ＣＡＤ／ＤＦＭ／ＣＡＰＰ／ＣＡＭ怕实现方法。通过ＯＤＢＣ标准接口的方式实现了与ＭＩＳ、ＭＲＰＩＩ系统的集成,有效地达到了企业内部信息资源的共享。基于ＰＤＭ框架来实现ＣＡＤ／ＣＡＰＰ／ＣＡＭ的并行集成是一种较为理想的模式。     

FOXPRO环境中创建表的几种方法

在ＦＯＸＰＲＯ环境中创建表有多种方法,主要分为程序化方法和手工化方法两大类。前者是在程序运行当中对原始表进行处理时所进行的中间表文件制作过程,手工化方法是在ＦＯＸＰＲＯ的ＣＯＭＭＡＭＤ窗口进行的创建过程。下面是各种方法的具体创建过程。１．新表的创建方法之一：在ＣＯＭＭＡＮＤ窗口中用ＣＲＥＡ命令：以数据库ＢＩＡＯ．ＤＢＦ为例ＣＲＥＡＴＥＢＩＡＯ．ＤＢＦ用该命令可以交互式地定义然后生成一个新的名为ＢＩＡＯ．ＤＢＦ的ＦＯＸＰＲＯ文件。ＣＲＥＡＴＥ将打开一个新的表以便用户进行交互式定义。此时,用户可以输…     

基于构件的框架开发方法及其特定域应用

传统的软件开发方法在面向的软件系统开发过程中难以支持理用性,针对此问题,提出了一种基于构件的框架开发方法ＦＣＤＭ,主要讨论领域分析,领域框架的划分,领域构件的提取及应用系统的生成关键过程,并给出在特定领域中的应用实例。     

MIS系统构件化开发中系统集成过程的研究与设计

MIS系统构件化开发方法是实现MIS系统工业化生产的一条途径，与其他有关构件的论述不同，本文着重从整体上阐述构件的集成和组装。首先概述了这种开发方法的过程和特点，其次介绍了各种MIS构件的定义和分类，然后举例说明了MIS系统集成的一般过程、方法及特点，最后简要介绍了几种系统构件的设计思路。     

An integrated infrastructure for monitoring and evaluating agent-based systems

Driven by the urging need to thoroughly identify and accentuate the merits of agent technology, we present in this paper, MEANDER, an integrated framework for evaluating the performance of agent-based systems. The proposed framework is based on the Agent Performance Evaluation (APE) methodology, which provides guidelines and representation tools for performance metrics, measurement collection and aggregation of measurements. MEANDER comprises a series of integrated software components that implement and automate various parts of the methodology and assist evaluators in their tasks. The main objective of MEANDER is to integrate performance evaluation processes into the entire development lifecycle, while clearly separating any evaluation-specific code from the application code at hand. In this paper, we describe in detail the architecture and functionality of the MEANDER components and test its applicability to an existing multi-agent system.     

Introduction to an integrated methodology for development and implementation of enterprise information systems

An integrated methodology for successful development and implementation of enterprise information systems is developed. This paper describes the methodology and defines five components and one repository which can be customized with business scenarios and patterns according to various business environments. Five components consist of information strategy planning, economic justification and measurement, enterprise information system appraisal, package software evaluation, and unified modeling tools. They characterize the methodology through its entire road map. Also, case studies are provided to prove its practical values.     

面向对象的组合软件工程研究

组合软件工程技术是当今软件工程技术发展的主流。本文综述了作者在基于对象的组合软件工程研究方面的最新进展，包括语义模型、描述语言、设计方法学和支持环境等方面。     

Optimization of software components selection for component-based software system development

During the last two decades, there has been a growing interest in component-based software system (CBSS) development both in academia and in industry. In CBSS development, it is common to identify software modules first. Once they are determined, we need to select appropriate software components for each software module. However, very few research works so far have addressed the theoretical aspect especially in the optimization of software component selection for CBSS development. Previous studies of CBSS development seldom considered the influence of software components on coupling and cohesion of software modules. In this paper, the formulation of an optimization model of software components selection for CBSS development is described. The model has two objectives: maximizing the functional performance of the CBSS and maximizing the cohesion and minimizing the coupling of software modules. A genetic algorithm (GA) is introduced to solve the optimization model for determining the optimal selection of software components for CBSS development. An example of developing a financial system for small- and medium-size enterprises is used to illustrate the proposed methodology.     

Physical simulation: The use of scaled-down fully functional components to analyze and design automated production systems

This paper presents and discusses the physical simulation methodology currently employed in the Industrial Automation Laboratory in the Department of Industrial Engineering at Texas A&M University. Physical simulation is the study of complex automated manufacturing and material handling systems through the use of scaled-down system replicas controlled by mini and microcomputers using full-sized software. The physical simulation methodology is the design, construction, operation, and study of such systems in a laboratory environment. The methodology consists of identifying basic automated system components; constructing scaled-down, functionally-equivalent generic models of the components with mechanical breadboarding kits; and then using these generic models to construct fully functional scaled-down systems. Thus, it allows us to evaluate the dynamic physical interactions using the models to confirm design decisions and to develop and test system software in parallel with the construction of the full-sized system. This approach should allow a cost reduction in the design cycle for complex automation because (1) through it we can identify design errors early, and (2) it provides a mechanism for the parallel development of both the computer hardware/software control system and the system's machinery. The methodology is currently under development in the Industrial Automation Laboratory in the Department of Industrial Engineering at Texas A&M University.     

Design of a Software Component Bank for Distribution

Recently, component-based software development technology is recognized as a new methodology that can overcome the problems of the traditional methodology at developing the software. It removes the problems by supporting fast development, easy maintenance, good quality, easy creation/upgrade of application, low cost, etc. It also creates new software business area such as business component developer, sales and distribution vendors. Many research institutes report that the market related with software component industry will grow with high rate. For the highly growing component market, a component distribution model is necessary to activate developing components, to promote the utilization, and to support distribution of them. In this paper, we propose a component distribution model through the requirement analysis. We also propose the UML model based on the requirement analysis, developed a prototype. We presented the developed system using several graphic user interfaces.     

Architectural-level risk analysis using UML

Risk assessment is an essential part in managing software development. Performing risk assessment during the early development phases enhances resource allocation decisions. In order to improve the software development process and the quality of software products, we need to be able to build risk analysis models based on data that can be collected early in the development process. These models will help identify the high-risk components and connectors of the product architecture, so that remedial actions may be taken in order to control and optimize the development process and improve the quality of the product. In this paper, we present a risk assessment methodology which can be used in the early phases of the software life cycle. We use the Unified Modeling Language (UML) and commercial modeling environment Rational Rose Real Time (RoseRT) to obtain UML model statistics. First, for each component and connector in software architecture, a dynamic heuristic risk factor is obtained and severity is assessed based on hazard analysis. Then, a Markov model is constructed to obtain scenarios risk factors. The risk factors of use cases and the overall system risk factor are estimated using the scenarios risk factors. Within our methodology, we also identify critical components and connectors that would require careful analysis, design, implementation, and more testing effort. The risk assessment methodology is applied on a pacemaker case study.     

GO法在软件体系结构可靠性分析中的应用

GO法是一种系统可靠性分析方法,可将GO法应用到软件体系结构的可靠性分析中。根据软件体系结构自身的特点及构件之间的关系,分别建立了软件体系结构六种基本结构的GO模型,并进行了定量GO运算。通过一个实例,说明了应用GO法对软件体系结构的可靠性进行分析的全过程。实践表明:运用定量GO运算能够方便地计算出整个软件体系结构的可靠度,通过定性GO分析还可评估各构件及连接件的重要性,对后期系统的设计与开发具有一定的指导意义。