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反键盘记录工具的设计与实现 总被引:1,自引:0,他引:1
基于软件的键盘记录工具记录通过键盘输入的信息,对用户隐私和计算机安全造成严重威胁.Windows钩子是一种开发键盘记录工具的主要技术.我们设计了一个反键盘记录工具来检测已知和未知的基于Windows钩子的键盘记录工具,它通过检测可疑模块和拦截键盘相关钩子来实现,可保护我们免受几乎所有的基于Windows钩子的键盘记录工具的威胁. 相似文献
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离散余弦变换已成为图像压缩中一标准技术,本文给出了基于DA的二维离散余弦逆变换(2-DIDCT)的ASIC设计。本设计通过采用快速1-DIDCT算法及基于DA算法的乘法累加器来减少面积、加快速度。设计采用自顶向下设计方法,用VHDL进行描述,整个系统在SYNOPSYS工具上进行设计及仿真,最终综合到门级电路。 相似文献
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本文介绍了一种基于面向对象建模的教学管理系统的设计过程,在设计过程中使用了统一建模语言UML和建模工具Rational Rose2002 Enterprise Edition 进行整体的分析设计,同时使用了Rose Delphi Link来产生Delphi类的框架代码。从而使管理系统的可扩展性、模块重用性得到了很大的提高。 相似文献
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J2EE平台上的所见即所得的HTML电子表格工具的设计 总被引:1,自引:0,他引:1
本文介绍了一个MDA软件开发工具的设计思想和实现工具。该工具可以根据MDA中的平台无关模型的信息,由用户通过所见即所得的方式来编辑HTML表格。用户编辑了HTML表格框架后,可以基于PIM中的ER模型来定义表格中各个单元格的值。用户在编辑的过程中就可以直接看到表格的最终显示。这个工具和我们研究的其它两个工具协同使用,可以高效地把PIM转换成为J2EE平台上的应用程序。 相似文献
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基于ObjectARX和DCOM实现协同设计研究 总被引:1,自引:1,他引:1
分布式协同设计是基于网络工作环境而提出的一种先进的设计理念,其目的就是通过群体的协作和交互来完成设计任务。分布式协同设计需要一个满足其要求的协同设计平台以保证设计的顺利进行。DCOM技术是微软为适应分布式计算而提出的分布式组件对象模型,ObjeetaRX是随同AutoCAD发布的二次开发工具。文中探讨了基于ObjectARX和DCOM技术对AutoAD进行二次开发,提出了一个在分布式环境下多人协同设计开发的分布式协同设计AutoCAD系统。 相似文献
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本文介绍基于Qt/Embedded的网络通信设计,采用Qt/Embedded中的图形用户界面工具“Qt Designer”来设计主界面图形,以可靠的面向连接的TCP协议来实现网络通信。利用Signal—Slot机制把图形化的界面控件和网络通信的函数调用连接起来,既做到了界面友好,又能保证网络传输的可靠性。 相似文献
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本文提出一个集成化的软件开发模型(ISDE)。文中概要地介绍了如何从一些已有的软件工具和语言的定义来设计集成化开发环境。本文还详细介绍了基于这一模型的一个应用实例-基于广谱语言Knonit的集成编译编辑环境(ICEE)的设计和实现,该系统是智能军事决策支持系统的一部分,它由用户界面、工具集成器、编辑环境、编译环境和出错处理系统所组成。 相似文献
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CAD Framework中基于知识的设计流管理 总被引:1,自引:0,他引:1
许建国 《计算机研究与发展》1993,30(11):27-32,26
设计流管理是CAD Framework(框架结构)中一个新的研究领域。本文在给出与设计流有关的基本概念的基础上,采用结构约束和数据约束的方法实现对设计流的知识表示,并通过设计经验的获取途径,进一步的知识生成以及设计流的执行,一致性的处理和设计流的评估,详细讨论CAD Framework中基于知识的设计流管理。文中还给出了相应的设计流管理系统的总体设计。 相似文献
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ContextIn recent years, architectural design decisions are becoming more and more common for documenting software architectures. Rather than describing the structure of software systems, architectural decisions capture the design rationale and – often reusable – architectural knowledge. Many approaches and tools have been proposed in the literature to support architectural decision making and documentation (for instance, based on models, ontologies, or templates). In this context, the capturing, organization, and effective reuse of architectural knowledge has gained a lot of attention.ObjectiveHowever, there is little empirical evidence about the supportive effect of reusable architectural knowledge on the effectiveness and efficiency of architectural decision making.MethodTo investigate these aspects, we conducted two separate controlled experiments with software architecture students in which we tested the supportive effect of reusable decision models in decision making and documentation.ResultsOur results show that the use of reusable decision models can significantly increase both the efficiency and the effectiveness of novice architects.ConclusionWe can report, that our findings are in line with similar studies and support the claims regarding reusable architectural design decisions in principle. 相似文献
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To meet the competitive demands of modern manufacturing, it is necessary to reduce design times and enrich decision making by integrating process planning into the design activity using Concurrent Engineering principles. Although this is traditionally done through the interaction between designers and process planners, it is perhaps more desirable for a CAD system to have the functionality necessary to automatically advise the designer of the shop floor implications of design decisions. Cutting tool selection is an essential thread linking feature-based design of machined parts to process planning. Thus, the implementation of tooling considerations into design is an important requirement for an integrated CAD/CAPP system. This paper defines an architecture to enable the vertical integration of tooling considerations from early design to process planning and scheduling. The architecture is based on a five-level tool selection procedure which is mapped to a time-phased aggregate, management and detailed process planning framework. This paper draws on literature and the results of an industrial survey to identify the tooling methods suitable for integration within a CAD system and categorises them into the five levels of tool selection. The functions are then placed on a time-dependent framework that covers the progression of a product from design to process planning. The new functionality is being implemented as an object-oriented application called VITool, which is being developed so that it can be fully integrated within an existing CAD system. 相似文献
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基于知识的分布式设计流管理技术研究 总被引:1,自引:0,他引:1
在CAD集成框架中,建立高水平的设计流管理专家系统是解决分布式设计流管理的有效技术途径,本文提出一种通过建立分布式设计流管理知识库,实现设计流管理的自动化的方法,我们以设计流图为基础,采用基于扩展Petri网的理论模型描述设计流的动态行为,并将该模型与基于知识的方法相结合,实现了基于知识的分布式设计流管理系统,它能在较高层次管理在分布、异杈设计环境下的设计过程,该设计流管理系统在YHCIF集成框哿 相似文献
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Manouchehr Tabatabai 《Interacting with computers》1998,9(4):385-396
Research in decision making has concentrated mainly on the decision outcome (choice) rather than on the process of the decision making. This pattern is primarily due to the lack of an acceptable unobtrusive tool for investigation of the decision process. Further, the lack of a consistent decision aid in empirical works has hindered the comparison of results. The purpose of this paper is to present a flexible and adaptable computer-based system for empirical examination of information processing. The main thrust of the proposed system is to provide guidelines to the restrictive/channeling approach to system design. This system can be easily modified to suit different experimental research requirements. It should support more realistic decision tasks, which often are criticized in decision experiments. Furthermore, availability of this system should encourage more research work on the process of decision making. The nature of this support system is linked to the literature, and specifications and components of the system are provided. 相似文献
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Traditional CAD (Computer-Aided Design) methods in garment pattern design (GPD) fail to utilize the knowledge of experts for inexperienced designers. Moreover, the interactive and co-evolutionary features are not supported. We propose an interactive co-evolutionary CAD system for GPD (ICE-GCAD). The functionality model, modular architecture and data flow of the system are proposed. Then, the interactive co-evolutionary system whose core module is an immune-inspired co-evolutionary algorithm is studied. Finally, the flow of co-design in the system is proposed. As a case demonstration, we study a design sample of a leisure shirt. The experimental studies show that our approach has promising performance and appealing effects. We believe ICE-GCAD is applicable to support the collaboration among garment designers and experts. 相似文献
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针对传统的产品工业设计流程存在的效率低、资源浪费、可制造性评价方法单一且客观性差等问题,设计并构建了一个融合工业设计属性内容的可制造性评价方法,并且给出了方法的具体结构及实施步骤。结合一种基于依赖型不确定语言有序加权几何(Dependent Uncertain Linguistic Ordered Weighted Geometric,DULOWG)算子的多属性群决策方法,建立工业设计可制造性评价模型,并基于多属性决策的理论知识进行了推理和验证。 相似文献
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面向并行设计的智能决策支持系统研究 总被引:8,自引:0,他引:8
基于并行设计支撑环境讨论了智能决策支持系统的重要性,论述了基于知识的并行设计过程和基于小循环的并行设计过程模型,建立了复杂产品并行智能决策支持框架,阐明了适合并行设计智能决策支持系统的领域知识描述模型,并以方案设计智能决策支持系统为例进行了验证。 相似文献