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Research on Modeling and Reusing of Computer Numerical Control software with Object-oriented Technology

Journal of Donghua University(English Edition) 2001年第3期18卷 66-69页

作者：胡俊王宇晗王涛蔡建国 Sch. of Mech. Eng. Shanghai Jiaotong Univ. Shanghai 200030 China

To improve the reusable and configurable ability of computer numerical control ( CNC ) software, a new method to construct reusable model of CNC software with object-oriented (OO) technology is proposed. Based on analyzing function of CNC software, the article presents how to construct a general class library of CNC software with OO technology. Most function modules of CNC software can he reused because of inheritable capability of classes. Besides, the article analyzes the object relational model in request/report mode, and multitask concurrent management model, which can he applied on double-CPU hardware platform and Windows 95/NT environment. Finally, the method has been successfully applied on a turning CNC system and a milling CNC system, and some function modules have been reused.

关键词： CNC software, Object- Oriented, Request/Report,Multitask Concurrent Process.

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EMDS 3.0:A modeling framework for coping with complexity in environmental assessment and planning

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Science China(Technological Sciences) 2006年第z1期49卷 63-75页

作者： Keith M.Reynolds U.S.Dept.Agriculture Forest ServicePacific Northwest Research Station3200 SW Jefferson WayCorvallisOR 97331USA

The Ecosystem Management Decision Support (EMDS) system is an application framework for knowledge-based decision support of ecological assessments at any geographic scale. The system integrates state-of-the-art geographic information system (GIS) as well as knowledge-based reasoning and decision modeling technologies to provide decision support for a substantial portion of the adaptive management process of ecosystem management. EMDS 3.0 is implemented as an ArcMap extension and integrates the logic engine of NetWeaver to perform landscape evaluations, and the decision modeling engine of Criterium DecisionPlus for evaluating management priorities. Key features of the system's evaluation component include abilities to (1) reason about large, abstract, multi-faceted ecosystem management problems, (2) perform useful evaluations with incomplete information, (3) evaluate the influence of missing information, and (4) determine priorities for missing information. A key feature of the planning component is the ability to determine priorities for management activities, taking into account not only ecosystem condition, but also criteria that account for the feasibility and efficacy of potential management actions. Both components include powerful and intuitive diagnostic features that facilitate communicating the explanation of modeling results to a broad audience.

关键词： natural resources, modeling, assessment, analysis, planning, software, ecosystem management.

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