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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.  相似文献   

3.
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.  相似文献   

4.
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.  相似文献   

5.
系统工程与软件工程   总被引:1,自引:0,他引:1  
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.  相似文献   

6.
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。  相似文献   

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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。  相似文献   

9.
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.  相似文献   

10.
工程应用软件开发中应注意的问题   总被引:2,自引:4,他引:2  
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。  相似文献   

11.
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。  相似文献   

12.
万青  彭成  刘芸  徐捷 《电脑与信息技术》2005,13(1):23-26,59
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)。  相似文献   

13.
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.  相似文献   

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The key results in the standardization of system and software engineering in Ukraine are outlined and rationales of the national standardization approaches in this field are presented. All the current national standards in software engineering are reviewed.  相似文献   

16.
Olsen  N.C. 《Software, IEEE》1993,10(5):29-37
The author states that, in his experience, software engineering most resembles a dynamically overloaded queue or rush-hour traffic jam. A change measurement model that is unique because it puts the development process in the context of the larger business enterprise and partitions work into dynamic tangible activities, separating work demand from work services, is proposed. Because the change-management model is based on the concept of a dynamically overloaded queue, existing mathematical approximations can be used to estimate gross process behavior. Specifically, the author proposes to use fluid-approximation models to mathematically simulate the software process as a dynamically overloaded queue, applying estimation techniques that are normally used to analyze rush-hour traffic delays  相似文献   

17.
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.  相似文献   

18.
《Software, IEEE》2002,19(5):49-56
We examine the prevailing software engineering (SE) body of knowledge and perspectives on SE education to construct a model comprising knowledge areas for SE professional development. We use this model and Benjamin Bloom's taxonomy to delineate knowledge areas that an apprenticeship could best handle. We then establish a framework for SE apprenticeship, which we use to examine practices for apprenticeship simulations in three academic institutions that offer computer science (CS), applied CS, or computing systems curricula.  相似文献   

19.
ChemCAD软件及在化工课程设计中的应用   总被引:3,自引:1,他引:3  
ChemCAD是美国Chemstations公司开发的化工流程模拟软件,广泛应用于化学和石油工业、炼油、油气加工等领域中,为工艺开发、工程设计、优化操作和技术改造提供理论指导。本文主要介绍该软件功能和应用方法,结合某厂乙苯车间的苯回收塔和乙苯产品塔工艺计算和设计实例,讨论其在化工课程设计中的应用。并将乙苯塔ChemCAD计算结果和Aspen Plus计算值以及生产值进行比较、.相对误差小,符合较好。  相似文献   

20.
This paper discusses the application of formal methods software engineering (FMSE) to the development of the Computer Automated Resuscitation A (CARA) medical device at Walter Reed Army Institute of Research. Because this system is potentially life critical, a high level of quality was required. A formal engineering approach to the software development activities was chosen to satisfy this need. Specifically, a technique called sequence enumeration was applied to elicit and refine requirements while deriving a formal specification. The fundamentals of the specification process that was used on the project are described along with a brief summary of the project experience in the development and testing phases. The project employed recent advances in Cleanroom software engineering methods along with older box-structured development and usage-model-based statistical testing techniques.  相似文献   

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