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Relevant bibliographies by topics / CAD data exchange

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Academic literature on the topic 'CAD data exchange'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "CAD data exchange"

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Li, Jiping, Junichi Shinoda, and Ichiro Hagiwara. "530 The Development of TIT CADE for CAD Data Exchange." Proceedings of the JSME annual meeting 2005.1 (2005): 29–30. http://dx.doi.org/10.1299/jsmemecjo.2005.1.0_29.

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WATSON, AS. "CAD DATA EXCHANGE IN CONSTRUCTION." Proceedings of the Institution of Civil Engineers 88, no. 6 (December 1990): 955–69. http://dx.doi.org/10.1680/iicep.1990.11611.

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Vergeest, J. S. M. "CAD surface data exchange using STEP." Computer-Aided Design 23, no. 4 (May 1991): 269–81. http://dx.doi.org/10.1016/0010-4485(91)90067-7.

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Chao, Ping-Yi, and Yu-chou Wang. "A data exchange framework for networked CAD/CAM." Computers in Industry 44, no. 2 (March 2001): 131–40. http://dx.doi.org/10.1016/s0166-3615(00)00082-8.

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Bloor, M. S., and J. Owen. "CAD/CAM product-data exchange: the next step." Computer-Aided Design 23, no. 4 (May 1991): 237–43. http://dx.doi.org/10.1016/0010-4485(91)90063-3.

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Murphy, James. "NIDDESC—Enabling Product Data Exchange for Marine Industry." Journal of Ship Production 10, no. 01 (February 1, 1994): 24–30. http://dx.doi.org/10.5957/jsp.1994.10.1.24.

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The use of computer-aided design (CAD) technology in the U.S. Navy and marine industry has evolved from a drafting-based design tool to a three-dimensional (3D) product-oriented information base, used for design, production and service life support. One of the most significant enhancements to current CAD technology has been the incorporation or integration of non-graphic attribute information with traditional graphics data. This expanded information base or product model has enabled the marine industry to expand CAD use to include such activities as engineering analysis, production control, and logistics support. While significant savings can be achieved through the exchange of digital product model data between different agents, current graphics-based CAD data exchange standards do not support this expanded information content. The Navy/Industry Digital Data Exchange Standards Committee (NIDDESC) was formed as a cooperative effort of the Naval Sea Systems Command (NAVSEA) and the National Shipbuilding Research Program to develop an industry consensus on product data and to ensure these industry requirements are incorporated into national and international data exchange standards. The NIDDESC effort has resulted in the development of a suite of product model specifications or application protocols (APs) defining marine industry product model data. These APs have been submitted for inclusion into the next generation of data exchange standards.

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Safdar, Mutahar, Tahir Abbas Jauhar, Youngki Kim, Hanra Lee, Chiho Noh, Hyebin Kim, Inhwan Lee, Imgyu Kim, Soonjo Kwon, and Soonhung Han. "Feature-based translation of CAD models with macro-parametric approach: issues of feature mapping, persistent naming, and constraint translation." Journal of Computational Design and Engineering 7, no. 5 (April 9, 2020): 603–14. http://dx.doi.org/10.1093/jcde/qwaa043.

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Abstract Feature-based translation of computer-aided design (CAD) models allows designers to preserve the modeling history as a series of modeling operations. Modeling operations or features contain information that is required to modify CAD models to create different variants. Conventional formats, including the standard for the exchange of product model data or the initial graphics exchange specification, cannot preserve design intent and only geometric models can be exchanged. As a result, it is not possible to modify these models after their exchange. Macro-parametric approach (MPA) is a method for exchanging feature-based CAD models among heterogeneous CAD systems. TransCAD, a CAD system for inter-CAD translation, is based on this approach. Translators based on MPA were implemented and tested for exchange between two commercial CAD systems. The issues found during the test rallies are reported and analyzed in this work. MPA can be further extended to remaining features and constraints for exchange between commercial CAD systems.

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KIKUCHI, Yoshihito, Takeshi KISHINAMI, and Katsumasa SAITO. "Exchange of CAD Data Utilizing a Three Schema Architecture." Journal of the Japan Society for Precision Engineering 58, no. 1 (1992): 145–50. http://dx.doi.org/10.2493/jjspe.58.145.

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KISHINAMI, Takeshi. "Requirements for CAD Data Exchange and Shearing(Digital Engineering)." Journal of the Society of Mechanical Engineers 106, no. 1013 (2003): 263–67. http://dx.doi.org/10.1299/jsmemag.106.1013_263.

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Kim, Junhwan, Michael J. Pratt, Raj G. Iyer, and Ram D. Sriram. "Standardized data exchange of CAD models with design intent." Computer-Aided Design 40, no. 7 (July 2008): 760–77. http://dx.doi.org/10.1016/j.cad.2007.06.014.

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Dissertations / Theses on the topic "CAD data exchange"

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Park, Seok-min. "Advanced data exchange for solid freeform fabrication /." Full text (PDF) from UMI/Dissertation Abstracts International, 2000. http://wwwlib.umi.com/cr/utexas/fullcit?p3004352.

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Johnson, Chad A. "The integration of CAD/CAM with virtual machining simulation and cost estimation." Ohio : Ohio University, 1997. http://www.ohiolink.edu/etd/view.cgi?ohiou1177434959.

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Jain, Vikesh. "A platform independent process data exchange mechanism between Java applications and computer aided manufacturing systems." Ohio : Ohio University, 2003. http://www.ohiolink.edu/etd/view.cgi?ohiou1081784819.

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Onyeako, Isidore. "Resolution-aware Slicing of CAD Data for 3D Printing." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/34303.

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3D printing applications have achieved increased success as an additive manufacturing (AM) process. Micro-structure of mechanical/biological materials present design challenges owing to the resolution of 3D printers and material properties/composition. Biological materials are complex in structure and composition. Efforts have been made by 3D printer manufacturers to provide materials with varying physical, mechanical and chemical properties, to handle simple to complex applications. As 3D printing is finding more medical applications, we expect future uses in areas such as hip replacement - where smoothness of the femoral head is important to reduce friction that can cause a lot of pain to a patient. The issue of print resolution plays a vital role due to staircase effect. In some practical applications where 3D printing is intended to produce replacement parts with joints with movable parts, low resolution printing results in fused joints when the joint clearance is intended to be very small. Various 3D printers are capable of print resolutions of up to 600dpi (dots per inch) as quoted in their datasheets. Although the above quoted level of detail can satisfy the micro-structure needs of a large set of biological/mechanical models under investigation, it is important to include the ability of a 3D slicing application to check that the printer can properly produce the feature with the smallest detail in a model. A way to perform this check would be the physical measurement of printed parts and comparison to expected results. Our work includes a method for using ray casting to detect features in the 3D CAD models whose sizes are below the minimum allowed by the printer resolution. The resolution validation method is tested using a few simple and complex 3D models. Our proposed method serves two purposes: (a) to assist CAD model designers in developing models whose printability is assured. This is achieved by warning or preventing the designer when they are about to perform shape operations that will lead to regions/features with sizes lower than that of the printer resolution; (b) to validate slicing outputs before generation of G-Codes to identify regions/features with sizes lower than the printer resolution.

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Tessier, Sean Michael. "Ontology-based approach to enable feature interoperability between CAD systems." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/41118.

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Data interoperability between computer-aided design (CAD) systems remains a major obstacle in the information integration and exchange in a collaborative engineering environment. The standards for CAD data exchange have remained largely restricted to geometric representations, causing the design intent portrayed through construction history, features, parameters, and constraints to be discarded in the exchange process. In this thesis, an ontology-based framework is proposed to allow for the full exchange of semantic feature data. A hybrid ontology approach is proposed, where a shared base ontology is used to convey the concepts that are common amongst different CAD systems, while local ontologies are used to represent the feature libraries of individual CAD systems as combinations of these shared concepts. A three-branch CAD feature model is constructed to reduce ambiguity in the construction of local ontology feature data. Boundary representation (B-Rep) data corresponding to the output of the feature operation is incorporated into the feature data to enhance data exchange. The Ontology Web Language (OWL) is used to construct a shared base ontology and a small feature library, which allows the use of existing ontology reasoning tools to infer new relationships and information between heterogeneous data. A combination of OWL and SWRL (Semantic Web Rule Language) rules are developed to allow a feature from an arbitrary source system expressed via the shared base ontology to be automatically classified and translated into the target system. These rules relate input parameters and reference types to expected B-Rep objects, allowing classification even when feature definitions vary or when little is known about the source system. In cases when the source system is well known, this approach also permits direct translation rules to be implemented. With such a flexible framework, a neutral feature exchange format could be developed.

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KUNDA, SAKETH RAM. "Methods to Reuse CAD Data in Tessellated Models for Efficient Visual Configurations : An Investigation for Tacton Systems AB." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-281748.

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Data loss has always been a side effect of sharing 3D models between different CAD systems. Continuous research and new frameworks have been implemented to minimise the data loss in CAD and in other downstream applications separately like 3D visual graphics applications (eg. 3DS Max, Blender etc.). As a first step into this research area, the thesis is an explorative study on understanding the problem of CAD data loss while exchanging models between a CAD application and a visual application. The thesis is performed at Tacton systems which provides product configurations to their customers in both CAD and visual environments and hence the research is focussed on reusing the CAD data in visual applications or restoring the data after exchange. The research questions are framed to answer the reasons of data loss and address the possible implementation techniques at the company. Being a niche topic, the thesis required inputs from different perspectives and knowledge sharing from people outside the company which proves the significance of open innovation in technology-oriented companies. Ten different ideas were brainstormed and developed into concepts to solve the problem of data loss. All the concepts are analysed and evaluated to check the functionality and feasibility of implementing it within the company workflow. The evaluations resulted in different concepts that are capable of solving the research problem. They have also been verified with various people internal and external to the company. The results also highlight the strengths and weaknesses of each of these concepts giving clear instructions to the company on the next steps.
Dataförluster har alltid varit en följd av att dela 3D-modeller mellan olika CAD-system. I forskning har nya metoder utvecklats och implementerats för att minimera dataförlusten i CAD och andra program, som t.ex. visuella 3D-grafikapplikationer (3DS Max, Blender etc.). Denna rapport är resultatet av en studie kring CAD-dataförluster när man överför modeller mellan ett CAD-program och ett visualiseringsprogram. Studien har utförts vid Tacton Systems AB, som tillhandahåller produktkonfigureringslösningar både i CAD-program och i visuella miljöer och därför har studien haft fokus på att återanvända eller återskapa CAD-data i visualiseringsprogramvaror. Forskningsfrågorna är inriktade på att hitta orsaker till dataförlusterna och möjliga lösningar för företaget. Eftersom detta är ett högspecialiserat ämne krävde arbetet insatser från olika perspektiv och kunskapsinhämtning från människor också utanför företaget, vilket visar på betydelsen av öppen innovation i teknikorienterade företag. Tio olika idéer togs fram och utvecklades till koncept för att lösa problemet med dataförluster. Alla koncept har analyserats och utvärderats för att bedöma deras funktionalitet och genomförbarhet, för att implementera dem inom företagets arbetsflöde. Utvärderingarna resulterade i sex olika koncept som skulle kunna lösa problemet. Dessa koncept har diskuterats och verifierats med olika personer inom och utanför företaget. Resultatet visar styrkor och svagheter i vart och ett av dessa koncept och ger tydliga rekommendationer till företaget om nästa steg.

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Rajab, Khairan. "Knowledge Guided Non-Uniform Rational B-Spline (NURBS) for Supporting Design Intent in Computer Aided Design (CAD) Modeling." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3302.

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For many years, incompatible computer-aided design (CAD) packages that are based on Non-uniform Rational B-Spline (NURBS) technology carried out the exchange of models and data through either neutral file formats (IGES or STEP) or proprietary formats that have been accepted as quasi industry standards. Although it is the only available solution at the current time, the exchange process most often produces unsatisfactory results. Models that are impeccable in the original modeling system usually end up with gaps or intersections between surfaces on another incompatible system. Issues such as loss of information, change of data accuracy, inconsistent tolerance, and misinterpretation of the original design intent are a few examples of problems associated with migrating models between different CAD systems. While these issues and drawbacks are well known and cost the industry billions of dollars every year, a solution to eradicate problems from their sources has not been developed. Meanwhile, researchers along with the industries concerned with these issues have been trying to resolve such problems by finding means to repair the migrated models either manually or by using specialized software. Designing in recent years is becoming more knowledge intensive and it is essential for NURBS to take its share of the ever increasing use of knowledge. NURBS are very powerful modeling tools and have become the de facto standard in modeling. If we stretch their strength and make them knowledge driven, benefits beyond current expectations can be achieved easily. This dissertation introduces knowledge guided NURBS with theoretical and practical foundations for supporting design intent capturing, retrieval, and exchange among dissimilar CAD systems. It shows that if NURBS entities are tagged with some knowledge, we can achieve seamless data exchange, increase robustness, and have more reliable computations, all of which are ultimate objectives many researchers in the field of CAD have been trying to accomplish for decades. Establishing relationships between a NURBS entity and its origin and destinations can aid with seamless CAD model migration. The type of the NURBS entity and the awareness of any irregularities can lead to more intelligent decisions on how to proceed with many computations to increase robustness and achieve a high level of reliability. As a result, instead of having models that are hardly modifiable because of migrating raw numerical data in isolation, the knowledge driven migration process will produce models that are editable and preserve design intent. We have addressed the issues not only theoretically but also by developing a prototype system that can serve as a test bed. The developed system shows that a click of a button can regenerate a migrated model instead of repairing it, avoiding delay and corrective processes that only limit the effective use of such models.

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Zekeyo, S. Jewoh, S. Nezhat, C. Schropp, and S. Miller. "Computergestützte Simulationsschnittstelle – Optimierte Systementwicklung in der Mechatronik." Universitätsbibliothek Chemnitz, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-226124.

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Das Verbinden der Konstruktions- mit der Simulationsdisziplin für Mehrkörpersimulationen ermöglicht es, Produkte in der Konstruktionsumgebung zu gestalten und anschließend in der Simulationsumgebung unter gewünschten Einflüssen auszulegen. Disziplinübergreifende Kommunikation zwischen entsprechenden Softwareprodukten erfolgt meist indirekt, manuell und unter Integritätsverlusten. Zwischen verschiedenen CAD Systemen und MATLAB besteht keine direkte Verbindung, weshalb die SANEON GmbH zusammen mit dem Institut für Flugsystemdynamik der Technischen Universität München eine Schnittstelle zum automatischen, bidirektionalen und integritätsverlustfreien Austausch zwischen den Systemen entwickelt hat. So kann in MATLAB und Simscape Multibody (früher SimMechanics) vollautomatisiert ein Mehrkörpersimulationsmodell auf Basis eines CAD-Modells aufgebaut werden. Darüber hinaus können Daten zurück an die CAD-Umgebung gesendet werden und somit Daten bidirektional ausgetauscht werden. Das hieraus entstandene Alleinstellungsmerkmal des vollautomatisierten und bidirektionalen Austausches unserer Innovation ist ein Novum auf dem Markt. Mit CASIN (Computer Aided Simulation INterface) stellen wir eine neuartige Plattform bereit, die Ihnen den domänenübergreifenden Transfer von CAD-Daten zwischen Konstruktions- und Simulationsumgebung erlaubt. So kann auf Bauteil- und Baugruppeninformationen per Knopfdruck unmittelbar in MATLAB zugegriffen werden. Benutzerdefinierte CAD-Parameter können aus MATLAB heraus modifiziert werden. Somit ist die Grundlage für einen iterativen Datenaustausch zwischen den Disziplinen geschaffen.

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Qian, Jingjing. "A Step Implementation For Product Structure Data Exchange." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-76684.

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Scania is a Swedish automotive manufacturer for heavy vehicles and engines. It also offers transport solutions and long term commitment for customers. In today's Scania, a modular system provides a huge variety of specifications to meet varying dramatic needs for different customers. In order to be able to meet the diverse requirements of customers, modular approach with the support of reusable components is used to increase the efficiency of designing different products. To customize both product development and product design, computer aided design(CAD) is used to support the process of design and design documentation. "CATIA" is a multi-platform CAD software and "ENOVIA" is a product modeling product offers product database management for virtual model design into CATIA, both "CATIA" and "ENOVIA" are developed by the French company Dassault Systemes are chosen by Scania to support its product development. The modular system approach requires the system support for product structure, which is managed by a mainframe called SPECTRA. The thesis project is mainly about system designing a new module which takes the responsibility for exchanging information between SPECTRA and ENOVIA. In more detail, the new component is to perform a mapping of data in SPECTRA format into a format which ENOVIA can import. The mapping module has several interfaces with other applications in the system. JavaMigrator provides the environment to import data from the mainframe and transfer the data into the module and finally output the expected data format into ENOVIA. To achieve this purpose, several possible solutions were proposed and several methods were tried. Since an in-house developed CAA-module is highly preferred by Scania, the new mapping component will finally be designed into two separate modules, the first part converts the XML extracted from SPECTRA into an intermediate format and the second part is designed to convert the intermediate file into the expected target file. The intermediate file is required, since the format is independent of changes in both SPECTRA and ENOVIA. Furthermore, it is flexible and less complex to maintain than direct mapping from exported XML to ENOVIA. The report focuses on five parts, background, project specification, methodology, implementation, result and future work.

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Cai, Jing [Verfasser]. "Development of a Reference Feature-based Machining Process Planning Data Model for Web-enabled Exchange in Extended Enterprise / Jing Cai." Aachen : Shaker, 2007. http://d-nb.info/116650929X/34.

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Books on the topic "CAD data exchange"

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Helpenstein, Helmut J., ed. CAD Geometry Data Exchange Using STEP. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-78335-7.

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Vries-Baayens, Anne Elisabeth. CAD product data exchange: Conversions for curves and surfaces. Delft, Netherlands: Delft University Press, 1991.

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American Institute of Architects. Computer Aided Practice Task Force. CAD, the medium of exchange. Washington, DC (1735 New York Ave., NW, Washington 20006): American Institute of Architects, 1992.

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Helpenstein, Helmut J. CAD Geometry Data Exchange Using STEP: Realisation of Interface Processors. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993.

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Smith, Brad Lee. Initial Graphics Exchange Specification (IGES), version 3.0. Warrendale, Pa: Society of Automotive Engineers, 1986.

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Institution, British Standards. Construction drawing practice: Guide for the structuring and exchange of CAD data : BS 1192-5:1998. London: British Standards Institute, 1998.

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Palmer, Mark E. The current ability of the architecture, engineering, and construction industry to exchange CAD data sets digitally : final report. Gaithersburg, MD: U.S. Dept. of Commerce, National Bureau of Standards, 1986.

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CAD-CAM Data Exchange Technical Centre. CAD/CAM Data Exchange Technical Centre prospectus: A collaborative venture between industrial companies, National Economic Development Office, University of Leeds Industrial Services Ltd., Department of Trade and Industry. London: National Economic Development Office, 1985.

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Ciuffetti, Peter. CD-ROM Data Exchange Standard (DXS). London: SilverPlatter Information, 1991.

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Mirrington, Alexander. Transformations of Identity and Society in Anglo-Saxon Essex. NL Amsterdam: Amsterdam University Press, 2019. http://dx.doi.org/10.5117/9789462980341.

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Transformations of Identity and Society in Anglo-Saxon Essex: A Case Study of an Early Medieval North Atlantic Community presents the results of a comprehensive archaeological study of early medieval Essex (c.AD 400-1066). This region provides an important case study for examining coastal societies of north-western Europe. Drawing on a wealth of new data, the author demonstrates the profound influence of maritime contacts on changing expressions of cultural affiliation. It is argued that this Continental orientation reflects Essex’s longterm engagement with the emergent, dynamic North Sea network. The wide chronological focus and inclusive dataset enables long-term socio-economic continuity and transformation to be revealed. These include major new insights into the construction of group identity in Essex between the 5th and 11th centuries and the identification of several previously unknown sites of exchange. The presentation also includes the first full archaeological study of Essex under ‘Viking’ rule.

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Book chapters on the topic "CAD data exchange"

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Mittelstaedt, K. M., and D. E. E. Trippner. "CAD Data Exchange." In Advances in Computer Graphics III, 241–92. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-61558-0_7.

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Jones, Peter F. "CAD data exchange standards." In CAD/CAM: Features, Applications and Management, 175–87. London: Macmillan Education UK, 1992. http://dx.doi.org/10.1007/978-1-349-22141-7_19.

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Jones, Peter F. "Hardware data exchange standards." In CAD/CAM: Features, Applications and Management, 203–12. London: Macmillan Education UK, 1992. http://dx.doi.org/10.1007/978-1-349-22141-7_21.

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Stroud, Ian Anthony, and Hildegarde Nagy. "Databases and Data Exchange." In Solid Modelling and CAD Systems, 383–421. London: Springer London, 2011. http://dx.doi.org/10.1007/978-0-85729-259-9_9.

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Weissflog, U. "Product Data Exchange; Design and Implementation of IGES Processors." In Product Data Interfaces in CAD/CAM Applications, 116–25. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82426-5_10.

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Gnatz, R. "Specification of Interfaces: A Case Study of Data Exchange Languages." In Product Data Interfaces in CAD/CAM Applications, 192–207. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82426-5_18.

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Helpenstein, Helmut J. "Introduction." In CAD Geometry Data Exchange Using STEP, 1–2. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-78335-7_1.

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Helpenstein, Helmut J. "Application Protocols and STEP relations." In CAD Geometry Data Exchange Using STEP, 3–57. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-78335-7_2.

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Helpenstein, Helmut J. "Common Tool Kit." In CAD Geometry Data Exchange Using STEP, 58–279. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-78335-7_3.

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Helpenstein, Helmut J. "Development of Processors." In CAD Geometry Data Exchange Using STEP, 280–377. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-78335-7_4.

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Conference papers on the topic "CAD data exchange"

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Weingartner, Lukas, Alfred Sadlauer, Peter Hehenberger, and Stefan Bochert. "Workflows for the Exchange of Specialized CAx Data." In CAD'15. CAD Solutions LLC, 2015. http://dx.doi.org/10.14733/cadconfp.2015.298-302.

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Rappoport, Ari. "An architecture for universal CAD data exchange." In the eighth ACM symposium. New York, New York, USA: ACM Press, 2003. http://dx.doi.org/10.1145/781606.781648.

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Hanayneh, Leen, Yiwen Wang, Yan Wang, Jack C. Wileden, and Khurshid A. Qureshi. "Feature Mapping Automation for CAD Data Exchange." In ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/detc2008-49671.

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Computer-aided design (CAD) data interoperability is one of the most important issues to enable information integration and sharing in a collaborative engineering environment. A significant amount of work has been done on the extension and standardization of neutral data formats in both academy and industry. In this paper, we present a feature mapping mechanism to allow for automatic feature information exchange. A hybrid semantic feature model is used to represent implicit and explicit features. A graph-based feature isomorphism algorithm is developed to support feature mapping between different CAD data formats.

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LI, Jiping, Wanrong GU, and Kai ZHU. "Procedural Representation Based Cross-CAD data Exchange." In 2020 International Symposium on Computer Engineering and Intelligent Communications (ISCEIC). IEEE, 2020. http://dx.doi.org/10.1109/isceic51027.2020.00033.

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"Workflows for the Exchange of Specialized CAx Data." In CAD'15 London. CAD Solutions LLC, 2015. http://dx.doi.org/10.14733/cadconfp.2015.342-347.

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Kreis, Alexander, Mario Hirz, and Severin Stadler. "A Contribution to Optimized Data Exchange Supporting Automotive Bodywork Engineering." In CAD'19. CAD Solutions LLC, 2019. http://dx.doi.org/10.14733/cadconfp.2019.18-23.

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Xiao, Wenlei, Yazui Liu, Rui Li, and Gang Zhao. "STEP-compliant Data Exchange of T-spline Models between CAx Systems." In CAD'16. CAD Solutions LLC, 2016. http://dx.doi.org/10.14733/cadconfp.2016.231-236.

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Kreis, Alexander, Mario Hirz, Severin Stadler, Markus Salchner, and Patrick Rossbacher. "Convenient Connection Technology Data Model Supporting Optimized Information Exchange between CAx-systems." In CAD'17. CAD Solutions LLC, 2017. http://dx.doi.org/10.14733/cadconfp.2017.154-159.

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Altidor, John, Jack Wileden, Jeffrey McPherson, Ian Grosse, Sundar Krishnamurty, Felicia Cordeiro, and Audrey Lee-St. John. "A Programming Language Approach to Parametric CAD Data Exchange." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-48530.

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Data exchange between different computer-aided design (CAD) systems is a major problem inhibiting information integration in collaborative engineering environments. Existing CAD data format standards such as STEP and IGES enable geometric data exchange. However, they ignore construction history, features, constraints, and other parametric-based CAD data. As a result, they are inadequate for supporting modification, extension and other important higher-level functionality when accessing an imported CAD model from another CAD system. Achieving such higher-level functionality therefore often requires a time-consuming, error-prone, tedious process of manually recreating the model in the target CAD system. Based on techniques adapted from programming language research, this paper presents an approach to exchanging parametric data between CAD systems using formally-defined conversion semantics. We have demonstrated the utility of our approach by developing a prototype implementation that automates the conversion of 2D sketches between two popular CAD systems: Pro/ENGINEER and SolidWorks. We present examples showing that our approach is able to accurately convert parametric CAD data even in cases where models were constructed using operations from the source CAD system that have no direct counterpart in the target CAD system. Although the case study focuses on 2D interoperability, our approach provides formal foundations for supporting 3D and semantic interoperability between CAD systems.

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Sun, Li-juan, and Bo Ding. "Heterogeneous CAD Data Exchange Based on Cellular Ontology Model." In 2009 WRI World Congress on Software Engineering. IEEE, 2009. http://dx.doi.org/10.1109/wcse.2009.106.

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Reports on the topic "CAD data exchange"

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Kim, Junwahn, Michael J. Pratt, Raj Iyer, and Ram Sriram. Data exchange of parametric CAD models using ISO 10303-108. Gaithersburg, MD: National Institute of Standards and Technology, 2007. http://dx.doi.org/10.6028/nist.ir.7433.

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Smith, K. L. CAD data exchange with Martin Marietta Energy Systems, Inc., Oak Ridge, TN. Office of Scientific and Technical Information (OSTI), October 1994. http://dx.doi.org/10.2172/135045.

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Palmer, Mark E. The current ability of the architecture, engineering, and construction industry to exchange CAD data sets digitally. Gaithersburg, MD: National Bureau of Standards, 1986. http://dx.doi.org/10.6028/nbs.ir.86-3476.

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Johnson, Eric M., and Robert Chew. Social Network Analysis Methods for International Development. RTI Press, May 2021. http://dx.doi.org/10.3768/rtipress.2021.rb.0026.2105.

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Social Network Analysis (SNA) is a promising yet underutilized tool in the international development field. SNA entails collecting and analyzing data to characterize and visualize social networks, where nodes represent network members and edges connecting nodes represent relationships or exchanges among them. SNA can help both researchers and practitioners understand the social, political, and economic relational dynamics at the heart of international development programming. It can inform program design, monitoring, and evaluation to answer questions related to where people get information; with whom goods and services are exchanged; who people value, trust, or respect; who has power and influence and who is excluded; and how these dynamics change over time. This brief advances the case for use of SNA in international development, outlines general approaches, and discusses two recently conducted case studies that illustrate its potential. It concludes with recommendations for how to increase SNA use in international development.

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Allende López, Marcos, Diego López, Sergio Cerón, Antonio Leal, Adrián Pareja, Marcelo Da Silva, Alejandro Pardo, et al. Quantum-Resistance in Blockchain Networks. Inter-American Development Bank, June 2021. http://dx.doi.org/10.18235/0003313.

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This paper describes the work carried out by the Inter-American Development Bank, the IDB Lab, LACChain, Cambridge Quantum Computing (CQC), and Tecnológico de Monterrey to identify and eliminate quantum threats in blockchain networks. The advent of quantum computing threatens internet protocols and blockchain networks because they utilize non-quantum resistant cryptographic algorithms. When quantum computers become robust enough to run Shor's algorithm on a large scale, the most used asymmetric algorithms, utilized for digital signatures and message encryption, such as RSA, (EC)DSA, and (EC)DH, will be no longer secure. Quantum computers will be able to break them within a short period of time. Similarly, Grover's algorithm concedes a quadratic advantage for mining blocks in certain consensus protocols such as proof of work. Today, there are hundreds of billions of dollars denominated in cryptocurrencies that rely on blockchain ledgers as well as the thousands of blockchain-based applications storing value in blockchain networks. Cryptocurrencies and blockchain-based applications require solutions that guarantee quantum resistance in order to preserve the integrity of data and assets in their public and immutable ledgers. We have designed and developed a layer-two solution to secure the exchange of information between blockchain nodes over the internet and introduced a second signature in transactions using post-quantum keys. Our versatile solution can be applied to any blockchain network. In our implementation, quantum entropy was provided via the IronBridge Platform from CQC and we used LACChain Besu as the blockchain network.

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Milek, Karen, and Richard Jones, eds. Science in Scottish Archaeology: ScARF Panel Report. Society of Antiquaries of Scotland, September 2012. http://dx.doi.org/10.9750/scarf.06.2012.193.

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The main recommendations of the panel report can be summarised under four key headings:  High quality, high impact research: the importance of archaeological science is reflected in work that explores issues connected to important contemporary topics, including: the demography of, the nature of movement of, and contact between peoples; societal resilience; living on the Atlantic edge of Europe; and coping with environmental and climatic change. A series of large-scale and integrated archaeological science projects are required to stimulate research into these important topics. To engage fully with Science in Scottish Archaeology iv these questions data of sufficient richness is required that is accessible, both within Scotland and internationally. The RCAHMS’ database Canmore provides a model for digital dissemination that should be built on.  Integration: Archaeological science should be involved early in the process of archaeological investigation and as a matter of routine. Resultant data needs to be securely stored, made accessible and the research results widely disseminated. Sources of advice and its communication must be developed and promoted to support work in the commercial, academic, research, governmental and 3rd sectors.  Knowledge exchange and transfer: knowledge, data and skills need to be routinely transferred and embedded across the archaeological sector. This will enable the archaeological science community to better work together, establishing routes of communication and improving infrastructure. Improvements should be made to communication between different groups including peers, press and the wider public. Mechanisms exist to enable the wider community to engage with, and to feed into, the development of the archaeological and scientific database and to engage with current debates. Projects involving the wider community in data generation should be encouraged and opportunities for public engagement should be pursued through, for example, National Science Week and Scottish Archaeology Month.  Networks and forums: A network of specialists should be promoted to aid collaboration, provide access to the best advice, and raise awareness of current work. This would be complemented by creating a series inter-disciplinary working groups, to discuss and articulate archaeological science issues. An online service to match people (i.e. specialist or student) to material (whether e.g. environmental sample, artefactual assemblage, or skeletal assemblage) is also recommended. An annual meeting should also be held at which researchers would be able to promote current and future work, and draw attention to materials available for analysis, and to specialists/students looking to work on particular assemblages or projects. Such meetings could be rolled into a suitable public outreach event.

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Payment Systems Report - June of 2020. Banco de la República de Colombia, February 2021. http://dx.doi.org/10.32468/rept-sist-pag.eng.2020.

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With its annual Payment Systems Report, Banco de la República offers a complete overview of the infrastructure of Colombia’s financial market. Each edition of the report has four objectives: 1) to publicize a consolidated account of how the figures for payment infrastructures have evolved with respect to both financial assets and goods and services; 2) to summarize the issues that are being debated internationally and are of interest to the industry that provides payment clearing and settlement services; 3) to offer the public an explanation of the ideas and concepts behind retail-value payment processes and the trends in retail payments within the circuit of individuals and companies; and 4) to familiarize the public, the industry, and all other financial authorities with the methodological progress that has been achieved through applied research to analyze the stability of payment systems. This edition introduces changes that have been made in the structure of the report, which are intended to make it easier and more enjoyable to read. The initial sections in this edition, which is the eleventh, contain an analysis of the statistics on the evolution and performance of financial market infrastructures. These are understood as multilateral systems wherein the participating entities clear, settle and register payments, securities, derivatives and other financial assets. The large-value payment system (CUD) saw less momentum in 2019 than it did the year before, mainly because of a decline in the amount of secondary market operations for government bonds, both in cash and sell/buy-backs, which was offset by an increase in operations with collective investment funds (CIFs) and Banco de la República’s operations to increase the money supply (repos). Consequently, the Central Securities Depository (DCV) registered less activity, due to fewer negotiations on the secondary market for public debt. This trend was also observed in the private debt market, as evidenced by the decline in the average amounts cleared and settled through the Central Securities Depository of Colombia (Deceval) and in the value of operations with financial derivatives cleared and settled through the Central Counterparty of Colombia (CRCC). Section three offers a comprehensive look at the market for retail-value payments; that is, transactions made by individuals and companies. During 2019, electronic transfers increased, and payments made with debit and credit cards continued to trend upward. In contrast, payments by check continued to decline, although the average daily value was almost four times the value of debit and credit card purchases. The same section contains the results of the fourth survey on how the use of retail-value payment instruments (for usual payments) is perceived. Conducted at the end of 2019, the main purpose of the survey was to identify the availability of these payment instruments, the public’s preferences for them, and their acceptance by merchants. It is worth noting that cash continues to be the instrument most used by the population for usual monthly payments (88.1% with respect to the number of payments and 87.4% in value). However, its use in terms of value has declined, having registered 89.6% in the 2017 survey. In turn, the level of acceptance by merchants of payment instruments other than cash is 14.1% for debit cards, 13.4% for credit cards, 8.2% for electronic transfers of funds and 1.8% for checks. The main reason for the use of cash is the absence of point-of-sale terminals at commercial establishments. Considering that the retail-payment market worldwide is influenced by constant innovation in payment services, by the modernization of clearing and settlement systems, and by the efforts of regulators to redefine the payment industry for the future, these trends are addressed in the fourth section of the report. There is an account of how innovations in technology-based financial payment services have developed, and it shows that while this topic is not new, it has evolved, particularly in terms of origin and vocation. One of the boxes that accompanies the fourth section deals with certain payment aspects of open banking and international experience in that regard, which has given the customers of a financial entity sovereignty over their data, allowing them, under transparent and secure conditions, to authorize a third party, other than their financial entity, to request information on their accounts with financial entities, thus enabling the third party to offer various financial services or initiate payments. Innovation also has sparked interest among international organizations, central banks, and research groups concerning the creation of digital currencies. Accordingly, the last box deals with the recent international debate on issuance of central bank digital currencies. In terms of the methodological progress that has been made, it is important to underscore the work that has been done on the role of central counterparties (CCPs) in mitigating liquidity and counterparty risk. The fifth section of the report offers an explanation of a document in which the work of CCPs in financial markets is analyzed and corroborated through an exercise that was built around the Central Counterparty of Colombia (CRCC) in the Colombian market for non-delivery peso-dollar forward exchange transactions, using the methodology of network topology. The results provide empirical support for the different theoretical models developed to study the effect of CCPs on financial markets. Finally, the results of research using artificial intelligence with information from the large-value payment system are presented. Based on the payments made among financial institutions in the large-value payment system, a methodology is used to compare different payment networks, as well as to determine which ones can be considered abnormal. The methodology shows signs that indicate when a network moves away from its historical trend, so it can be studied and monitored. A methodology similar to the one applied to classify images is used to make this comparison, the idea being to extract the main characteristics of the networks and use them as a parameter for comparison. Juan José Echavarría Governor

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