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基于PLIB标准面向零件族的零件库信息模型及其表达 总被引:3,自引:0,他引:3
建立零件库的目的是通过有效的零部件供应渠道和整个供应链的信息集成实现企业间和企业内部零件资源共享.不同应用系统(如CAD)间的数据表达与交换成为零件库资源共享的关键和瓶颈问题.本文基于PLIB(ISO13584)标准,面向零件族,用形式化的方法和统一的数据格式表达零件库信息,建立零件库信息模型.文章首先分析了对零件库信息表达的需求,然后介绍了PLIB标准,最后描述基于PLIB标准的零件库信息模型,并且结合法兰盘零件族,介绍了基于ISO10303-21的零件族信息物理文件表达. 相似文献
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为了有效地管理和利用标准化设计资源,真正意义上实现数据共享,对零件族的层次结构和事物特性表进行了分析,提出了一种基于数据库ADO技术的动态零件族的信息建模方法。它是一种零件族表达与信息模型无关、信息容量大且实用性强的零件族信息模型的建模方法,能有效地解决零件信息来源不同的问题。运用VC 的MFC AppWizard和数据库ADO等知识,给出了零件族的建立过程,实现了对零件族进行添加、修改和删除等动态信息维护。这为零件库信息模型更高层次的实现提供了基础。 相似文献
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为了有效地管理和利用标准化设计资源,真正意义上实现数据共享,对零件族的层次结构和事物特性表进行了分析,提出了一种基于数据库ADO技术的动态零件族的信息建模方法.它是一种零件族表达与信息模型无关、信息容量大且实用性强的零件族信息模型的建模方法,能有效地解决零件信息来源不同的问题.运用VC 的MFC AppWizaed和数据库ADO等知识,给出了零件族的建立过程,实现了对零件族进行添加、修改和删除等动态信息维护.这为零件库信息模型更高层次的实现提供了基础. 相似文献
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介绍了工作流管理的现状和产品数据管理技术,比较了知识处理与数据处理的特点,提出了一种以工作充为核心的智能PDM系统集成解决方案,通过在PDM系统中集成人工智能,使用STEP标准建立信息模型和数据交换,增强系统在信息和应用集成的过程中的适应性和开放性,提供基于Internet/Intranet的共享零件库和标准工程手册数据库,将工程设计和管理人员解放出来,可提高产品设计和资源利用率。 相似文献
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Autodesk Inventor资源中心的定制使用 总被引:1,自引:0,他引:1
盛亮 《CAD/CAM与制造业信息化》2006,(9):116-119
一、资源中心概述 资源中心(Content Center,以下简称CC)是一个预先安装的以几何信息为主的零件库(Part library),包含数千个螺钉、螺栓、螺母、垫圈和销等标准零件以及轴承等标准部件.CC按国际(家)标准(ISO、JIS&GB、DIN、ANSI和Parker,BSI、CSN、IS、KS、NF、PN、SS和STN等其他标准)和特征分类建库,按零件工程用途(型材、管件和管材、紧固件、轴用件、其他零件和特征)对标准件分门别类.整个资源中心由资源中心放置环境、资源中心编辑环境和Vault管理环境组成. 相似文献
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本文介绍特征技术产生的背景和特征建模的有关概念与方法。根据集成化制造系统的要求,提出了一套新的特征信息描述方法和系统结构;建立了折弯零件的设计特征库,实现了析弯零件的基于特征设计.分析、归纳了特征表达空间之间的关系和基于特征空间的特征映射原理与方法,完成了折弯零件设计特征模型到制造特征模型的转换,从而实现了产品信息的集成与共享. 相似文献
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A considerable number of software suppliers report improvements in product and service quality, development costs and time to market achieved with the help of the ISO 9000 standards. Nevertheless, the ISO 9000 family has received unfavourable criticism in journals, textbooks and at software quality conferences. The paper summarizes, discusses and reviews eleven of the most popular arguments against the ISO 9000 standards. The review of the criticism is based on findings of two empirical surveys among European software suppliers that have implemented an ISO 9000 quality system. The paper concludes with suggestions and guidelines for advances in software quality management concepts, such as the ISO 9000 family, CMM, BOOTSTRAP and the emerging SPICE standard. 相似文献
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Architecture and implementation of a shop-floor programming system for STEP-compliant CNC 总被引:3,自引:0,他引:3
S.H. Suh Author Vitae B.E. Lee Author VitaeAuthor Vitae S.U. Cheon Author Vitae 《Computer aided design》2003,35(12):1069-1083
STEP-NC (formalized as ISO 14649 and ISO 10303 AP238) is a new interface (or language) standard for the CAD-CAM-CNC chain, currently under establishment by ISO TC184 SC1 and SC4. Upon completion, it will replace ISO 6983, so called M & G codes used for CNC since 1950s. As the new language is being established, a new CNC controller called STEP-CNC (STEP-compliant CNC), capable of carrying out various intelligent tasks using the new language as an input, receives worldwide attention. Shop-floor programming (SFP) system is a computer-assisted part programming system interfaced with STEP-CNC. Its primary function is to generate part program in ISO 14649 (or STEP AP238) to machine the part geometry given by STEP AP203 or AP224 file. In this paper, we first present an architecture for the SFP system, followed by implementation technology including: (1) STEP physical file interpretation, (2) feature recognition, (3) process planning, (4) part program generation, and (5) verification. The developed methodology was implemented in a prototype called PosSFP, and tested with Korea STEP-NC system. 相似文献
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Edward Humphreys 《Datenschutz und Datensicherheit - DuD》2011,35(1):7-11
This article presents ISO’s most successful information security standard ISO/IEC 27001 together with the other standards
in the family of information security standards — the socalled ISO/IEC 2700x family of information security management system
(ISMS) standards and guidelines. We shall take a brief look at the history and progress of these standards, where they originated
from and how became the common language of organizations around the world for engaging in business securely. We shall take
a tour through the different types of standard at are included in the ISMS family and how the relate and fit together and
we will finally conclude with a short presentation of ISMS third party certification. The material used in this article has
been derived directly from the many articles and books by Prof. Humphreys on the ISO/IEC 2700x ISMS family and they are implemented
and applied in practice in business, commerce and government sectors. 相似文献
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In 2006-2008 we performed a case study for the purpose of assessing the industrial application of the seven part Control Centre (CC) design standard ISO 11064 to identify positive and negative experiences among stakeholders in the Norwegian petroleum sector. We mainly focussed on ISO 11064 Part 1, because this was the most commonly used among the identified stakeholders. ISO 11064 is generally appreciated and applied in the industry, but we did observe a significant variance in use between the different parts of the standard. We also identified potential areas for improvements, like scope and application adaptation. Thus we suggest a more goal-based approach based on one normative part only. 相似文献
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《Applied ergonomics》2011,42(1):62-70
In 2006–2008 we performed a case study for the purpose of assessing the industrial application of the seven part Control Centre (CC) design standard ISO 11064 to identify positive and negative experiences among stakeholders in the Norwegian petroleum sector. We mainly focussed on ISO 11064 Part 1, because this was the most commonly used among the identified stakeholders. ISO 11064 is generally appreciated and applied in the industry, but we did observe a significant variance in use between the different parts of the standard. We also identified potential areas for improvements, like scope and application adaptation. Thus we suggest a more goal-based approach based on one normative part only. 相似文献
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浅谈软件质量度量和软件产品评价 总被引:2,自引:0,他引:2
软件质量度量和软件产品评价系列标准是国际标准化组织ISO/IEC JTC1近年来在软件工程标准方面的研究重点之一,对于通过量化手段进行软件产品的度量和评价,规范软件产品的质量管理,这两个系列标准提供了一条可以参考的实施途径。本文在多年跟踪研究国际上软件工程标准和制定软件工程国家标准的基础上,对ISO/IEC JTC1近年推出的ISO/IEC 9126和ISO/IEC 14598系列,以及正在研制的ISO/IEC 25000系列标准进行综合介绍。 相似文献
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Plant three-dimensional (3D) computer-aided design (CAD) models typically consist of logical configuration, equipment specifications and ports, and 3D shapes. Because 3D CAD models are used as master information throughout a plant’s entire lifecycle and many stakeholders are involved in such lifecycle, providing a method for sharing plant 3D CAD models among various stakeholders is very important. Standard 15926 from the International Organization for Standardization (ISO 15926) is a family of standards that is intended to support the sharing and integrating of all information during the life of a process plant. Therefore it is important for ISO 15926 to support plant 3D CAD models. In order to address this issue, this study investigates a standardized method to exchange plant 3D CAD models using ISO 15926. Information requirements regarding plant 3D CAD models are established, and then ISO 15926 reference data (classes, attributes, and templates) are extended to cover information requirements. For demonstration of the proposed method, we developed a prototype platform where plant 3D CAD models in ISO 15926 are loaded and retrieved. 相似文献
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The Graphical Kernel System (GKS) was published as an ISO standard for computer graphics programming in August 1985. GKS is now undergoing revision in ISO/IEC and at the time of writing the text of the Draft International Standard of GKS-9x was being finalized. This paper presents a way in which a key part of the new functionality in GKS-9x, namely namesets and selection criteria, can be implemented effectively. 相似文献
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Jü rgen Beimel Raimund Schindler Hartmut Wandke 《Behaviour & Information Technology》1994,13(4):299-308
This paper presents the results of an international questionnaire survey that was developed to analyse how the potential addressees of the ISO 9241 part 10 standard—human factor (HF) experts engaged in the design, evaluation, purchase, and application of software systems—accept the first committee draft of this standard. It reports how HF experts from nine countries evaluated the First Committee Draft of ISO 9241 Part 10. Inquiries were made about whether the standard provides a framework for the design and evaluation of dialogue systems, or whether the subject of the standard is mature enough to be published as an international recommendation. Results indicate a widespread approval among 90 HF experts of the form and content of ISO 9241 Part 10. 相似文献
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The authors demonstrate that the recommendations for analyzing productivity in the appendix to the ISO/IEC 15939 standard are inappropriate. They also show that problems with the ISO/IEC advice can be compounded if software engineers attempt to apply statistical process-control techniques to software productivity metrics. They recommend using small meaningful data sets as the basis for productivity analysis and using effort-estimation models to assess productivity rather than productivity metrics. This article is part of a special focus section of software metrics 相似文献