A microcomputer application in engineering anthropometry

A microcomputer program which predicts various anthropometric measurements from some basic measurements is presented in this paper. By the use of this program, engineers and designers can obtain necessary anthropometric data with a minimum amount of actual measurements.     

Interrupts and the hardware-software rendezvous — microcomputer software engineering

Notations for rendezvous of communicating processes are reviewed. The use of interrupts is considered in some examples of program designs. Concepts well known in software engineering are reiterated, but they are emphasized in relation to the hardware-software interface. The concept of an interrupt service routine is shown to be at variance with the requirements of secure program design. The alternative concept of switching to another process until the required status change occurs is shown to be a suitable substitute. This requires an implicit and dynamic setting of the interrupt vector. A structured top-down approach to the design of programs which use the traditional interrupt hardware is urged. The OCCAM language has been chosen for program notation because OCCAM was designed for the representation of parallel program activity, and interrupts inherently imply some sort of parallelism.     

On a microcomputer integrated system for structural engineering practices

This paper describes a comprehensive use of microcomputer for professional practices of structural engineers. Transition from the conventional method to a computer-based procedure calls for a complete rethinking of an accurate, unambiguous definition of all the elementary activities, their logical orders as well as inter-relationships. An integrated database software system is then proposed for analysis and design of structures, on microcomputer. With a common data bank. all previously processed data can serve directly as a basis for subsequent activities, such as computer-aided drafting. computer-aided construction planning, etc. Several program strategies to attain a maximum efficiency within existing microcomputer constraints are discussed.     

Softing software engineering system

An integrated production system covering the phases specification, design, programming, documentation, test and integration—as well as project and configuration management is described. The system is built upon a unified development methodology supported by interactive tools. It encompasses a quality assurance procedure based on the automatic control of all intermediate products. It also provides a development database for project planning and control. The system is presently under development in Budapest, Hungary. Three of the planned seven subsystems are already operating in West Germany.     

系统工程与软件工程

系统工程是高科技产业的必备基础,软件行业需要的是系统化软件工程.软件工程包括三个重要的线索:开发过程、管理过程、过程改进.它们组合为一个系统工程,有了系统工程产业才能上规模,系统工程的基础是流程化管理,提高软件业的产业化程度,需要软件工程,软件工程的基础也是流程化管理.软件工程需要经历从磨合、提炼、到标准化的过程.     

8098单片机在雷电定位系统中的应用

介绍了8098单片机在新一代雷电定位系统数据采集模块中的应用，并详细介绍了其A／D转换器和高速输出口的软硬件设计。     

应用软件质量工程中过程度量的研究

过程度量是软件开发过程中实施软件质量保证(SQA)的一个重要课题。文章对过程度量的概念进行了一些介绍,讨论了在开发应用软件过程中常用的几种度量,可供软件开发部门在实践SQA时参考。     

On designing a database management system for a computer-aided engineering software system

The renaissance of engineering design can be attributed to the phenomenal growth in the microprocessor industry. The basic difference between the new and the traditional approach is one of outlook. Complex design situations involve multidisciplines. However this has made the task of integrating and transferring design information among these disciplines very difficult. Database management systems (DBMS) provide attractive solutions to these problems. A centralized control of data ensures that redundancy can be reduced, inconsistency can be avoided, data can be shared, standards can be enforced, and conflicting requirements can be handled. This paper takes the reader through the steps required to configure an engineering DBMS. The different data models are explained and their usage in CAD/CAM settings is illustrated. The importance of data independence, modularity, efficiency, and protability is emphasized.     

A dedicated microcomputer for handwritten interaction with a software tool: system prototyping

This paper describes a microcomputer-based system dedicated to on-line character recognition for handwriting communication with a software tool. The prototype allows a user to interact with the tool from a digitizer, to develop the complete procedure of a computer program with the help of alphanumeric and graphic symbols, without any command entry.     

电子工程技术在单片机中的技术应用

单片机属于当前我国比较常见的一种嵌入式的系统,融合电子技术在大部分行业当中都得到了应用,所以必须引起相关工作人员的重视。虽然我国相关从业人员已经在大力研发该技术,并取得了一定的成效,但是在实际使用过程当中却依旧存在许多问题。本文将从目前该技术使用中存在的问题为着手点,结合当前我国的实际情况以及企业特点,对电子工程技术在单片机中的技术应用进行简要分析。     

工程应用软件开发中应注意的问题

分析了软件开发过程中存在的典型错误观点,说明了开发工程应用软件的过程管理与软件质量间存在的必然联系,指出了具有必要的管理手段并解决好软件开发中的关键问题是得到高质量软件的必要条件。提出了在工程应用软件开发过程管理中应着重从人、问题和过程这3个方面加以分析和考虑。     

计算机测控系统的故障分析以及抗干扰技术研究

针对计算机测控系统实际运行中故障问题,从软硬件可靠性与系统运行环境的角度分析了故障产生的原因,提出来了相应的抗干扰措施.抗干扰技术与系统可靠性是计算机测控系统开发不可忽视的两个重要内容,常用的抗干扰技术主要有硬件抗干扰和软件抗干扰.软件抗干扰措施是硬件抗干扰措施的一个补充和延伸,运用得法可以显著提高计算机测控系统的可靠...     

CRAY-1: a powerful delivery system for engineering software

The current availability of large scientific computers and the alternatives of direct array processors and distributed processors is reviewed. A concise and thorough examination of the relevant aspects of the CRAY-1's hardware which produce the very high computational speeds is presented with reference to the vectorizer. Consideration is given to the CRAY-1 Fortran compiler which is the most important user-orientated software on the system. Attention is paid particularly to invoking vectorization using the compiler. Finally, the results of a study of matrix multiplication and sorting routines on different computers, representing a range of engineering computers, is given as a basis for comparing their performance. It is concluded that the future for large computers seems assured as they fulfil the special requirements of the engineering community.     

The installation of a microcomputer system in Somalia

The installation of a 2‐unit microcomputer system in Somalia is described. Though not unique, the system does illustrate some important factors which must be considered when installing computers in extreme conditions.

The paper describes, in particular, the measures taken to cope with difficult environmental conditions, uncertain power supplies, and the lack of immediate access to maintenance facilities.     

用Agent-based软件工程方法构建CSCW系统

CSCW系统是一个支持多用户协同工作的多应用程序集成系统,随着CSCW系统应用不断扩展和Agent-Oriented概念设计的引入,需要为基于Agent的CSCW系统设计合适的框架模式,并根据Agent的内在层次结构创建适宜的Agent协作环境ACE(Agent Collaborative Environment)。     

The design of a user friendly engineering economy analysis package for a microcomputer

The design and features of a user friendly engineering economy analysis software package for the Apple II microcomputer is described. The software package is written in Applesoft Basic. An Apple II with 64k RAM, one or two disk drives and a line printer is required to use the software package. The package consists of five complementary programs: (1) Selection of the better of two alternatives using present-worth evaluations. (2) Conventional rate-of-return computations for a single project. (3) Selection from mutually exclusive alternatives using rate-of-return analysis. (4) Optimal capital allocation among several investment opportunities under risk. (5) Probabilistic after-tax economic analysis for a single project. All programs but (4) are based on the time value of money. Program (4) is a chance-constrained optimization model utilizing the Lagrange-multiplier technique. Program (5) implements depreciation, debt/equity financing, and taxes and performs a sequential after-tax Monte Carlo simulation over a specified life-span. The use of this software package does not require any previous computer or programming experience. A menu format is used. The software package allows the user to specify the shapes of the interest and inflation probability distributions on a year by year basis. The user has the option to specify the reinvestment rates. The package presents the results in tables and graphs. User acceptance has been excellent with this software package and this package is well suited for the use in an engineering economy class or for the practicing industrial engineer in industry.     

工程量清单计价软件的可重用开发技术及应用

以工程量清单计价领域产品的开发为例，研究了重用开发技术在软件各开发阶段的应用，讨论了软件的领域重用和层次重用等方面的问题,实现了软件产品领域横向重用和软件开发过程中的纵向层次重用,提高了软件产品的可重用性、开发效率和质量。