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CDVE Tables of Contents: 0405060708091011121314

CDVE 2010: International Conference on Cooperative Design, Visualization, and Engineering

Fullname:Cooperative Design, Visualization, and Engineering: 7th International Conference
Editors:Yuhua Luo
Location:Calvia, Mallorca, Spain
Dates:2010-Sep-19 to 2010-Sep-22
Publisher:Springer Berlin Heidelberg
Series:Lecture Notes in Computer Science 6240
Standard No:DOI: 10.1007/978-3-642-16066-0; ISBN: 978-3-642-16065-3 (print), 978-3-642-16066-0 (online); hcibib: CDVE10
Links:Online Proceedings
  1. Cooperative Applications
  2. Cooperative Design
  3. Cooperative Visualization
  4. Cooperative Engineering

Cooperative Applications

Using Tag Clouds to Promote Community Awareness in Research Environments BIBAKFull-Text 3-10
  Alexandre de Spindler; Stefania Leone; Matthias Geel; Moira C. Norrie
Tag clouds have become a popular visualisation scheme for presenting an overview of the content of document collections. We describe how we have adapted tag clouds to provide visual summaries of researchers' activities and use these to promote awareness within a research group. Each user is associated with a tag cloud that is generated automatically based on the documents that they read and write and is integrated into an ambient information system that we have implemented.
Keywords: Tag Clouds; Ambient Information; Community Awareness
A Proposal for Model-Based Design and Development of Group Work Tasks in a Shared Context BIBAKFull-Text 11-18
  Fernando Gallego; Ana I. Molina; Crescencio Bravo; William J. Giraldo
The design and development of groupware systems is a difficult task, especially due to their multidisciplinary nature and the technical complexity of these kinds of systems (e.g. distribution, data sharing, multi-user interfaces). A model-driven development approach could help to deal with this research problem. This paper presents an approach to tackling the design and development of groupware applications. This approach is part of a framework for the model-based user interface development of collaborative applications (called CIAF; Collaborative Interactive Application Framework), which includes issues of particular relevance based on the use of several models and notations for representing the collaborative and interactive aspects of this kind of systems.
Keywords: groupware design; model-based design; groupware production
Fixing Collaborative Edition on Typed Documents BIBAKFull-Text 19-26
  Stéphane Martin; Denis Lugiez
Collaborative edition is achieved by distinct sites that work independently on (a copy of) a shared document. In pure Peer to Peer collaborative editing, no centralization nor locks nor timestamps, therefore convergence, i.e. all sites have the same copy of the shared document, is the main issue. When the editing operations defined on the data structure enjoy a commutation property, efficient algorithms can be designed. The XML language provides a widely used format for documents and these documents are usually typed by DTD's or XML Schemas that are subclasses of regular tree languages. We extend a collaborative editing algorithm that relies on a notion of semantics dependence for operations and a tree data structure implementing XML documents to handle type information provided by DTD's or XML Schemas (and more generally regular tree languages). We show that the algorithm is convergent and that the final document has the required type.
Keywords: Peer to Peer Framework; CRDT; Collaborative Editing; Valid XML documents
Towards the Construction of a Knowledge Building Environment BIBAKFull-Text 27-30
  Ruth Cobos; Raúl Cajias; Linda Barros; Marcos R. S. Borges
Nowadays, we can find a variety of Knowledge-Building Environments (KBEs). A proposal of KBE for communities interested in generating a common corpus of quality knowledge is presented in this work. This innovative KBE combines in an integrated and complementary way the functionalities of two tested and validated Knowledge Management Web-based systems: Sofia and KnowCat. On the one hand, the Sofia system provides the ability to externalize tacit knowledge, through the group storytelling approach. On the other hand, the KnowCat system provides the crystallization of collective explicit knowledge thanks of its Knowledge Crystallization mechanism.
Keywords: Knowledge-Building Environment; Knowledge Management; Groupware; CSCW; Collaborative Learning Practices
Applying Situation Awareness Approach to Cooperative Play in Interactive Installation Storytelling System BIBAKFull-Text 31-38
  Wen-Hwa Cheng; Chich-Jen Shieh; Yung-Hoh Sheu; Hsiao-Chuan Chang
Owing to its character of virtual reality situation, Interactive Installation Storytelling System with Cooperative Play (IISSCP) provides children an immersive environment and situation awareness (SA) to interact with digital content more directly, intuitively, psychically and mentally. SA improves the interactivity between children and digital content. Through the interaction of play, children participate in learning willingly, give feedback quickly and enjoy peer learning. By integrating virtual computer vision applications with stage props as physical user interface, this system aims to create a natural immersive situation to attain four setting goals which are memory training, imagination of shape, music creation and training of physical strength and reaction. The target users are children aged 8 to 12. However, the cognitive differences of peers cause some problems during cooperative play. Based on findings from this research, we discuss the problems causing cooperation failure during play which are: (1) the cognitive differences when using icons of user interface corresponding to physical user interface, (2) the situation design affects role play during integrating the virtual and physical user interface into a mental gestalt and (3) the interaction complexity and difficulty affect children ability of situation awareness.
Keywords: Situation Awareness; Interactive Installation Storytelling System; Cooperative Play; Immersive Situation; Physical User Interface
Argumentation Tools in a Collaborative Development Environment BIBAKFull-Text 39-46
  Furio Belgiorno; Ilaria Manno; Giuseppina Palmieri; Vittorio Scarano
In the field of Computer Supported Collaborative Work several studies have explored the possibility to improve the collaboration in software development teams by integrating into IDEs tools to support the coordination and sharing of common resources. Similar studies have emphasized the need of integrating into IDEs collaboration and communication functionalities to improve the building of a shared knowledge. In this paper we describe how we enhanced Rational Team Concert (an IBM CDVE built on Eclipse and Jazz) with structured communication tools by integrating a collaborative platform named CoFFEE, that was developed for structured argumentation and discussion in an educational setting.
Keywords: Collaborative IDE; CSCW; structured communication tools
Cooperative Learning by Replay Files in Real-Time Strategy Game BIBAKFull-Text 47-51
  Jaekwang Kim; Kwang Ho Yoon; Taebok Yoon; Jee-Hyong Lee
In real-time strategy game, the game artificial intelligence is not smart enough. That makes people feel boring. In this paper, we suggest a novel method about a cooperative learning of build-order improving the artificial intelligence in real-time strategy game in order to make games funny. We use the huge game replay file for it.
Keywords: Game A.I.; Real-time strategy game; Build-order; Cooperative Learning; Replay file
Cooperative eLearning to Enhance Knowledge Creation BIBAKFull-Text 52-55
  Manuela Brandstätter; Marie-Luise Leitner; Christine Strauss
The introduced approach aims at teaching hands-on knowledge management (KM) in the context of electronic business and allows students of business administration and students of communication research to experience the value of cooperation and the value of knowledge creation. Additional synergetic effects are an interwoven research and teaching setting that will allow collecting empirical data for further research issues on cooperative learning and KM.
Keywords: cooperative learning; knowledge management; online marketing; innovative teaching
Memory and Creativity in Cooperative vs. Non cooperative Spatial Planning and Architecture BIBAKFull-Text 56-65
  Dino Borri; Domenico Camarda; Rossella Stufano
Meanings and roles of memories and creativity in spatial organizations are raising increasing attention among scholars and professionals. Creativity in cognition-oriented spatial studies is gradually seen as a normal feature of an organization. This thesis is supported, e.g., by the evidences on the role of memory in the most creative parts of the activity of architects, combined with exceptional association abilities representing the real bulk of creativity.
   The present paper addresses the discussion of such issues, by analysing case studies of single-agent and multi-agent spatial organization under two levels of spatial navigation and space design. The paper explores possible modelling approaches and system architectures supporting cognition-oriented activities in spatial organizations.
Keywords: Spatial creativity; Multi-agent planning; Spatial memory; Urban architecture; Spatial organizations
An Embedded Road Crack Detection System in a Cooperative Platform BIBAKFull-Text 66-72
  Zhenyu Ning; Yu Sun; Guofeng Qin; Qiyan Li
A cooperative platform is studied for improving the efficiency of road crack detection. The platform is mainly divided into a mobile terminal with an embedded road crack detection system, which detects pavement surface cracks, and a control center which analyses the crack information and makes further decisions. The experimental results indicate that this real time platform is more efficient than classical road detection systems. Also a sample case of the platform is given to show the road crack detection results and output. The application of the road crack edge detection was realized in embedded Linux system in the cooperative platform. The evaluation report will be output in real time and sent to the central database from the embedded mobile terminal, including the corresponding position information in the GIS of the cooperative platform.
Keywords: Pavement crack detection; Embedded Linux system; Real-time collaboration; Cooperative platform
Saving Energy with Cooperative Group-Based Wireless Sensor Networks BIBAKFull-Text 73-76
  Miguel Garcia; Sandra Sendra; Jaime Lloret; Raquel Lacuesta
Wireless Sensor Networks (WSNs) can be used in many applications, but it is most used in environmental monitoring. The energy consumption of each node should be as low as possible, and the collaborative methods can improve their performance. In this work, we compare the energy consumption of a regular WSN with a WSN in which the nodes are organized in cooperative groups. We demonstrate that cooperative group-based WSNs have fewer transmissions than regular WSNs. Because higher energy consumption occurs in the transmitting and receiving process of packages, collaborative group-based WSNs can have lower global consumption.
Keywords: Collaborative system; group-based WSNs; energy saving
Enhancing Collaboration in Vehicular Networks BIBAKFull-Text 77-80
  J. Molina-Gil; P. Caballero-Gil; C. Caballero-Gil
A VANET (Vehicular Ad-hoc NETwork) is an ad-hoc network that allows providing communications among nearby vehicles and between vehicles and nearby fixed roadside equipment. In these networks, warning messages affect decisions taken by drivers, so it is necessary the existence of a scheme to determine whether the road traffic information available to the driver is trustful or not. Besides, the quality of communications in VANETs is degraded when the number of non cooperative vehicles is very large. For this reason, cooperative groups are proposed as a solution to the spread of false traffic warning messages, and reputation lists are presented to stimulate cooperation among selfish nodes.
Keywords: Cooperation; Reputation List; Reactive Group Formation
Initial Risk Assessment of Emergency Events in Cooperative Operating Control BIBAKFull-Text 81-88
  Mieczyslaw Metzger; Grzegorz Polaków
It is often encountered some cases in the industrial control systems, where emergency situations require a vital, irreversible, and relatively quick decision, concerning further operations of the controlled process. The outcome of the decision can be optimal if it is taken cooperatively by a group of experts after careful assessing the risk of future hazards, taking into account the depletion of resources caused by taken actions. For taking such decision, an integrated environment is needed; in which geographically dispersed experts could cooperatively test various control scenarios. In this paper the example of a vital process is presented, i.e. an industrial wastewater treatment plant, where a sudden increase in the content of toxic substances in the inlet flow is the considered hazard. The proposed solution for the cooperative environment is an agent-based framework, which supports the full integration of the JADE environment with the numerical data acquired by OPC from industry-grade instrumentation.
Keywords: risk assessment; emergency management; distributed expertise; wastewater treatment; cooperative operating control
The Sensitivity Analysis for Cooperative Decision by TOPSIS Method BIBAKFull-Text 89-96
  Leonas Ustinovichius; Ruta Simanaviciene
Quantitative multiattribute decision making methods are handy for making cooperative decisions, because the decision makers are interested in finding a common solution; even some times they have diverse goals. The initial data for cooperative decision making depend on the decision makers' own views, therefore the input data may be inconsistent. An important step in cooperative decision making is to perform a sensitivity analysis for the cooperative decision.
   In this paper we perform a sensitivity analysis for the cooperative decision with respect to the values of attributes and the values of the attribute significances. The judgements of the expert group are used for generating the values of attributes significances. Monte Carlo simulation is used for the generation of the attribute values. We propose to represent the final decision together with the results of sensitivity analysis and confidence level of the decision. We believe that this can help to increase the reliability of the cooperative decision making.
Keywords: cooperative decision making; diverse goals; sensitivity analysis; multiple criteria decision; TOPSIS method
A Freshness Based Persistent Assurance Scheme for Secure Scalable Media Distribution BIBAKFull-Text 97-100
  Yong-Hyuk Moon; Jae-Hoon Nah; Chan-Hyun Youn
Unlike a single-layer based media, maintaining data integrity of a scalable media (SVC-encoded media) constructed as multiple layers is more difficult to achieve due to a retransformation property of the scalable media. Moreover, media redistribution among heterogeneous devices makes this issue more critical. To provide consistency in data management, we newly define an extended concept of data integrity as freshness in the standpoints of currency and reuse of data. In this paper we propose how to generate freshness information from the scalable media and describe a freshness-based persistent control of verifying currency and reusability for reliably coping with media retransformation and redistribution problems, respectively.
Keywords: Data Freshness; Persistent Control; Scalable Video Coding
Cooperative Decision Making for Evaluating Ports' Reception Facilities BIBAKFull-Text 101-104
  Sylvia Encheva; Sharil Tumin
This paper illustrates how to perform a cooperative decision making employing rough sets theory. Programs for effective management of ship-generated waste in a port are considered and a conclusion is obtained via an approximate reasoning scheme.
Keywords: cooperation; rough sets; approximation schemes
Group Formation through Cooperating Node in VANETs BIBAKFull-Text 105-108
  C. Caballero-Gil; P. Caballero-Gil; J. Molina-Gil
Vehicular Ad Hoc Networks (VANETs) will play a vital role in the future road safety and comfort. The lack of centralized infrastructure and high node mobility and number of vehicles generate problems such as interrupting connections, difficult routing, security of communications and scalability. Groups are here proposed as a solution to avoid data collisions by decreasing the number of connections exchanged among vehicles. To reach this goal, nodes should cooperate with each other. They should form groups or join a group depending on their state. This paper provides a global vision of the life cycle of cooperative nodes who form groups and a description of how to deal with the information within a group. Simulation results show that the proposed scheme reduces the number of communications, avoiding data loss due to collisions.
Keywords: cooperation; group; simulation
Scrum in Research BIBAKFull-Text 109-116
  Martin Ota
The article is focused on research management and cooperation within the research team and between the research team and enterprise (industrial or commercial) partners. It is a kind of meta-research (research on a research method). Roots of some problems of the current scientific research can be seen in a lot of isolation that still endures -- both personal isolation of the individual scientists, and isolation of the academic world from the industrial/commercial one and vice versa that makes the scientific research applied practically impossible --, and in bad time and/or resource management. A lot of research activities are conducted by researchers itself who are excellent professionals in the area of investigation, however the communication skills or leadership is often lacking. It makes conducting research as cooperation of a team at least inefficient or unmanageable. The article focuses on Scrum method that is popular as a product oriented management method in software development. It comments Scrum -- strictly team based activity, rigid but informal -- as suitable candidate for management of some types of scientific research. A special attention is devoted to the aspect of iterative incremental deliveries that enable an operative planning of suitable ratio between scientific and practical tasks for each iteration (usually from 2 to 4 weeks) allowing monitoring and controlling milestones, industrial or commercial needs together with actual state of the research. A positive side effect is that the potentially idle workers can share task of the 'opposite world', and thus the experience of the scientist can be enriched by the real industrial task cognition, and vice versa. The paper describes a Scrum implementation in the scientific research, and shows some practical findings. A community web site www.scruminresearch.org loosely grouping people and teams applying Scrum in research is proposed as a conclusion. Such web site can help with sharing information, tips and tricks and could allow collaboration of research teams on tuning Scrum in research.
Keywords: Scrum; Scrum in research; research methods; applied research; www.scruminresearch.org
Towards a Framework for the Development of CSCW Systems BIBAKFull-Text 117-120
  Sergio López Antonaya; Crescencio Bravo Santos
This paper proposes a conceptual and technological framework for the improvement of the development processes and the quality of collaborative systems, starting from a previous study of the most notable lacks identified in the field of CSCW regarding implementation issues, and the analysis of all the inherent aspects of organizational contexts such as internal structures, resources management or workflow definitions.
Keywords: Groupware Applications; Reusability; Tailorability; Model-Driven Development; Service-Oriented Architecture

Cooperative Design

An Anthropo-Based Study of Industrial Design Cooperative Practices Using "Mediating Objects" BIBAKFull-Text 123-132
  Catherine Elsen; Arnaud Dawans; Pierre Leclercq
This paper presents a two months in situ case study analyzing the characteristics of designers' cooperative work through the use of "mediating objects". We suggest that the consideration of real and evolutionary practices and everyday complementary work tools helps to understand the various cooperative modalities between co-workers and offers good clues for the development of cooperative support systems.
Keywords: Cooperative design analysis; study of design tools as cooperative work support; evolution of industrial design practices
Design for Service-Oriented Collaborative Design and Manufacturing Platform BIBAKFull-Text 133-139
  Feng Wang; Shuangxi Huang; Hui Liang; Yingfeng Zhang; Huiping Lin
With the continual improving of agile manufacturing and network manufacturing, service-oriented collaborative design and manufacturing is the manufacturing model of the 21st century. Through the scenario analysis of automobile enterprises, the architecture of service-oriented collaborative design and manufacturing system is proposed. The implementation framework based on SOA and MDA is developed. The model driven processes for the development of service-oriented collaborative design and manufacturing system are described. Finally, the simulation-based framework of performance analysis and optimization is presented which support the performance evaluation of the system in SOA environment.
Keywords: Service-oriented architecture; model driven architecture; collaborative design and manufacturing; performance evaluation
Cluster Analysis for Classifying Similar Shared Resources in Cooperative Design BIBAKFull-Text 140-144
  Huifen Wang; Li Qiao; Tingting Liu
It is very important to classify shared resources in collaborative design by scientific method because different kinds of resources become more and more similar while resource classifying level is increased. Cluster analysis is applied for the classification of similar shared resources in this paper. An agglomerate hierarchical clustering algorithm for shared resource classification is presented. Finally a case study for classifying materials is also presented in order to illustrate the application of this method.
Keywords: collaborative design; similar shared resource; cluster analysis
Parametric CAD Data Exchange Using Geometry-Based Neutral Macro File BIBAKFull-Text 145-152
  Ilhwna Song; Soonhung Han
Recently, CAD data translation without loss of design intend using commercial CAD data Translators is still impossible because these systems do not have creation history and modification history of feature. Macro parametric methodology is suggested as a solution of this problem, but critical problem still remains. The reason of this problem is that topology-based macro can cause an ambiguity in the name of feature. In this research, geometry-based neutral macro methodology is suggested as a solution of this problem.
Keywords: CAD; data exchange; macro parametric; geometry-based macro
Study of Collaborative Design Based on Fuzzy Theory BIBAKFull-Text 153-160
  Tieming Su; Xinpeng Qiu; Chunyan Yang
Under the Ontology-based collaborative design framework constructed by OWL and SWRL, in order to further extend the expression and reasoning abilities of domain knowledge description and to achieve the reasoning based on fuzzy theory, this paper expresses fuzzy domain knowledge by fuzzy logic and realizes the reasoning to make the design process more intelligent. First, fuzzy variables are formed by describing related fuzzy domain concepts and rules in OWL and SWRL. Fuzzy sets which are described by membership functions are then used to define fuzzy variables. At last, the fuzzy knowledge-based collaborative product design is completed by using fuzzy reasoning. A case of die selection shows the feasibility and intelligence of this approach.
Keywords: Collaborative Design; Fuzzy Logic; Fuzzy Reasoning; OWL; Intelligent design
Technological Change: Educating for Extreme Collaboration BIBAKFull-Text 161-169
  Vasilije Kokotovich; Tom Barker
This paper considers pedagogical strategies and techniques in design for attaining sustained innovation collaboratively, in order to assist in the New Product Design process and enhance opportunities for creating truly innovative products. The authors argue that the New Product Design process demands a multidisciplinary collaborative approach in order for designers to be able to have a pro-active capacity for innovation. The central theme of this paper relates to evidence for the hypothesis that it is the design teams who should act as change agents, and that one catalyst for this is an Extreme Collaborative Working model. This requires a further re-evaluation of the benefits of teaching and working across the different disciplines of Industrial design, Design Engineering and areas outside these domains. To cope with operating in an increasing technologically turbulent context, future teaching programs need to make creative connections between diverse design issues and diverse resources.
Keywords: Technological Change; Collaborative working; Design Teams; Multidisciplinary Design; Extreme Collaboration; Design Innovation; Design Education
Team Organization and Web-Based Project Management for Collaborative Highway Design BIBAKFull-Text 170-173
  Zhiqiang Zhang; Xiaodong Zhang; Yingzi Li; Cancan Zhao
It is difficult for highway design enterprises to manage collaborative highway design process due to its distributive and collaborative characters. Aiming at this problem, a web-based project management system for collaborative highway design was developed based on Project 2002 software. First, the organization structure of the design team is formulated, and the design process was analyzed and improved. Next, web-based project planning and controlling methods were studied. Then, the system structure and functions are proposed. Finally, a case study was illustrated to show the application of the system. The application shows that the system can effectively control the collaborative highway design process and improve the communication efficiency of the project.
Keywords: Team organization; Web-based project management; Highway design
Taking the Customer into Account in Collaborative Design BIBAKFull-Text 174-177
  Maria-Jesus Agost; Margarita Vergara
This article describes the improvement of a model of collaborative design for the ceramic industry. A new stakeholder playing a crucial role is now included in the design process, i.e. the customer. Specifically, we present a pilot validation study for the framework that aims to analyse how the environment, experiences and reference criteria of different types of the customers (commercial dealers, final users, architects and interior designers, etc.) can affect their preferences. Information about these customer preferences could be very useful for designers during the early stages of product development. A multidisciplinary approach to the problem can introduce substantial improvements in defining a truly collaborative design chain.
Keywords: Collaborative Design; Customer; Subjective Impressions in Design

Cooperative Visualization

Multi-user Multi-touch Setups for Collaborative Learning in an Educational Setting BIBAKFull-Text 181-188
  Jan Schneider; Jan Derboven; Kris Luyten; Chris Vleugels; Stijn Bannier; Dries De Roeck; Mathijs Verstraete
In educational settings, current digital technologies often work counter-productively because people using them with separation and isolation. This paper describes a set of multi-touch multimedia interaction applications that were especially designed to enhance collaboration between users. We present the underlying framework for creating such applications. Our applications were created for supporting typical collaborative tasks performed by secondary students. We present our findings on the usage of these applications by the users in the settings of a secondary school classroom.
Keywords: CSCL; multi-touch screens; interaction techniques
Explore, Collaborate and Publish Official Statistics for Measuring Regional Progress BIBAKFull-Text 189-198
  Mikael Jern
Official statistics such as demographics, environment, health, socialeconomy and education from regional territories are a rich and important source of information for many important aspects of life. Web-enabled geovisual analytics is a technique that can help illustrating comprehensive statistical data which for the eye are hard perceive or interpret. In this paper, we introduce "storytelling" means for the author to 1) select spatio-temporal and multivariate statistical data, 2) explore and discern trends and patterns, 3) orchestrate and describe metadata, 4) collaborate with colleagues to confirm and 5) finally publish essential gained insight and knowledge embedded as dynamic visualization "Vislet" in a blog or web page. The author can guide the reader in the directions of both context and discovery while at the same time follow the analyst's way of logical reasoning. We are moving away from a clear distinction between authors and readers affecting the process through which knowledge is created and the traditional models which support editorial work. Value no longer relies solely on the content but also on the ability to access this information.
Keywords: Collaborative web-enabled geovisualization; geovisual analytics; collaborative time animation; storytelling; OECD regional statistics
Pattern Browsing and Query Adjustment for the Exploratory Analysis and Cooperative Visualisation of Microarray Time-Course Data BIBAKFull-Text 199-206
  Paul Craig; Alan Cannon; Jessie Kennedy; Robert Kukla
This paper presents work to support collaborative visualisation and data analysis in the microarray time-series explorer (MaTSE) software. We introduce a novel visualisation component called the 'pattern browser' which is used to support the annotation and adjustment of user queries. This includes an explanation of why this component is required and how it can be used with our online pattern repository by biologists collaborating in the analysis of a microarray time-course data set. To conclude we suggest which other types of collaborative visualisation would benefit from the introduction of a component with comparable functionality.
Keywords: Cooperative Visualisation; Combined Multiple Views; Bioinformatics; Microarray Data Analysis
CAD and VR Technologies Used in Civil Engineering Education BIBAKFull-Text 207-210
  A. Z. Sampaio; M. M. Ferreira; D. P. Rosário; O. P. Martins
Virtual Reality (VR) technology could be applied as a complement to three-dimensional (3D) modelling, leading to better communication whether in vocational training, in education or in professional practice. Techniques of 3D modelling and VR were applied to the development of models related to the construction process. The 3D models created to support rehabilitation design emerge as an important tool for the monitoring of anomalies in structures and to assist decisions based on the visual analyses of alternative solutions. The VR model created to help the management of lighting systems in buildings allows the visual and interactive transmission of information related to the physical behaviour of the elements, defined as a function of the time variable. Didactic interactive models showing construction works were also developed. The introduction of CAD and VR techniques in school is helpful to students in order to prepare them to consider these technologies as important supports, later in their professional practice.
Keywords: Cooperative visualization; Engineering Education; Didactic Models; 3D models; Virtual Reality
Complicated Simulation Visualization Based on Grid and Cloud Computing BIBAKFull-Text 211-217
  Eva Pajorová; Ladislav Hluchý
Many complicated applications use grid and cloud computing for their visualization. After completion of each partial simulation step, the results are stored in reserved output area of the storage element and accessible for further processing. In this paper we present a visualization tool to visualize astrophysical simulations and natural disasters simulations using grid and cloud computing.
Keywords: Grid; Cloud; Virtual Reality; Visualization Tool
Visualization of Neutral Model of Ship Pipe System Using X3D BIBAKFull-Text 218-228
  Ikjune Kim; Guimok Cho; Jinsang Hwang; Jinggao Li; Soonhung Han
For ship-CAD data exchange among heterogeneous shipbuilding CAD systems such as PDMS and Tribon, and for long-term archiving of data, we define a neutral model for ship pipe model data.
   For long-term archiving and for CAD data exchange, we make a pipe-design file using ISO10303 AP227, where the pipe-design file has information on the location and orientation of piping components. We created a catalogue database for the templates of every piping component in the ship-CAD using ISO15926 and we built a shape database for the shape of each component and specification files from a model of a commercial shipbuilding CAD system. We refer to these entities as pipe DESIGN file, CATALOGUE Library, SHAPE DB, and SPEC file, and together they comprise a "Neutral Model".
   In this situation, the neutral model is distributed in remote locations and local systems, as noted above. As such, it is difficult to check the archived status of specific piping components. Therefore, visualization of the neutral model is mandatory to check the archived status of the pipe model.
   In this research we extract pipe model data from a distributed neutral model and visualize the extracted data using X3D, a web based 3D graphics international standard.
Keywords: Ship CAD; Long-term data Archiving; Visualization; X3D

Cooperative Engineering

Coordinating a Cooperative Automotive Manufacturing Network -- An Agent-Based Model BIBAKFull-Text 231-238
  Jose P. Garcia-Sabater; Jaime Lloret; Juan A. Marin-Garcia; Xavier Puig-Bernabeu
One of the problems to be solved in manufacturing networks, with several production centers, is the selection of a suitable manufacturer for each component in order to obtain competitive costs while making full use of the network's capacity. A solution is to own redundant information channels which, despite offering the network greater resilience, generate high costs. The coordination of the nodes in the manufacturing network could lower materials and information flows, thus cutting lead times and total costs, and regulating the system's total productive capacity. This work proposes a coordination model that centralizes materials and information flows, and cuts the costs and overall lead times. It also makes the self-adjustment of productive capacity possible.
Keywords: Manufacturing Network Coordination; Capacity Planning; ABM
A Constraint Solving Method for Collaborative Product Development BIBAKFull-Text 239-246
  Tingting Liu; Zhaoying Zhang; Huifen Wang
In order to shorten new product development cycles, parallel approach is emphasized to organize and plan the process of product design in Collaborative Product Development (CPD), in which a great deal of constraints of interdependent, interactive and restrictive relationships exist. The motivation of this article is to provide a simple and effective method to solve this problem. In new product development, collaboration is usually conducted according to product structure. In accordance with this principle, a constraint network is presented and an algorithm is given out. While the constraints can not be met, then conflict will arise. A consultation model is established. Finally, a case is put forward to explain how the algorithm for constraint network and consultation model work.
Keywords: constraint network; constraint algorithm; consultation model
A Solution of Manufacturing Resources Sharing in Cloud Computing Environment BIBAKFull-Text 247-252
  Lei Wu; Chengwei Yang
The emerging and spring up of cloud computing gives manufacturing a new solution and chance to realize resource sharing and cooperative work between enterprises for global manufacturing, the paper proposes a new service-oriented networked manufacturing model-cloud manufacturing, which is the combination of cloud computing and SOA. The resource sharing method in cloud manufacturing environment is proposed to support resource sharing and cooperative work between enterprises for global manufacturing. The description of manufacturing services and the business-driver building cloud manufacturing application method are introduced in detail. At last, we make a conclusion and put forward the future work.
Keywords: cloud computing; service-oriented architecture; manufacturing resource share; encapsulation
Cluster Analysis on Candidates of Cooperative Product Development Team BIBAKFull-Text 253-257
  Yitai Xu; Xuedong Gao; Ying Wang; Lin Wei
Project managers of the cooperative product development projects have to face the problem of how to set up a development team from the widespread candidates all over the world. In this paper, cluster analysis is used in selecting candidates of cooperative product development team. Five attributes including technical ability, innovation ability, cooperation ability, experience level and credit level are proposed. Attribute cluster process is presented in detail as well. Case study shows that the cluster analysis can effectively reduce the configuration difficulty of the collaborative product development team.
Keywords: Cluster; candidate selection; cooperative product development
Collaboration Support in a Web-Based SCADA System BIBAKFull-Text 258-261
  Grzegorz Polaków
This paper presents the approach to develop the SCADA system supporting the expertise distributed amongst multiple persons. SCADA systems are briefly presented and the analysis of sources of conflicts in the multi-user SCADA system is provided. To assess the scale of conflicts two usage scenarios are assumed, i.e. the collaborative environment for skilled engineers and experts, and competitive environment for students and researchers. The implemented solution allows the users to take exclusive control of specified parameter of the plant by dividing the users into specific groups and using the token-based mechanism. The proposed conflict resolution mechanism has been implemented in the industrial pilot plant setup.
Keywords: remote learning; cooperative research; multiuser system; conflicts
Collaborative Control of Hierarchical System Based on JADE BIBAKFull-Text 262-269
  Dariusz Choinskim; Michal Senik
The paper deals with the design process supported by sharing information through a Multi-Agent System environment. SCADA (Supervisory Control And Data Acquisition) software systems are one of the typical applications in automation industry and are used for monitoring, measurement and control systems. The presented solutions are intended to enable collaborative control for automated plants in a platform independent way. In the proposed Multi-Agent heterogeneous system the OPC plays an important role as a powerful communication technology especially dedicated for real-time distributed control systems. Based on the OPC native protocol OPC Agents Ontology brings this automation communication protocol idea into pure Java JADE Agents environment and also supports in decision making process while participating in concurrent engineering process.
Keywords: collaborative control; concurrent engineering; collaborative design process; Multi Agent System; JADE; OPC
Requirement Specification for Agent-Based Cooperative Control of Dynamical Systems BIBAKFull-Text 270-277
  Witold Nocon
The paper presents requirements for a layer supervising the transition between different agents controlling a dynamical system. Dynamical systems often require uninterrupted control over certain parts of the process, for which different control algorithm may be applied. Transition of control from one agent to another is possible and may sometimes be desired. Therefore, it must be ensured that the transition does not result in process deterioration. The paper presents data structure and basic mechanisms that enable transition of dynamical system control between different agents to be performed in a desired way.
Keywords: agent-based technology; dynamical systems; cooperative control and monitoring
Web Engineering Process Matrix for Sustainable Deployment of Web-Based Applications BIBAKFull-Text 278-281
  Sharil Tumin; Sylvia Encheva
Sustainable deployment needs a clear cooperative model of actors during different phases of planning, design, implementation and maintenance for a Web-based application project. Solving Web engineering problems involves multifaceted working stages, multi-domains expertise and multidisciplinary workers. The key to success is effective communication among actors. Actors can be both active and passive, either humans or non-human entities. Cooperative models can ensure effective flow of information between actors at all stages.
Keywords: cooperative model; process matrix; sustainable deployment; Web-based applications; effective communication
Collaborative and Visualized Safety Planning for Construction Performed at High Elevation BIBAKFull-Text 282-285
  Nobuyoshi Yabuki; Petcharat Limsupreeyarat; Tanit Tongthong
To eliminate unsafe conditions and to reduce a number of accidents at construction sites, engineers and supervisors in charge should have knowledge related with the requirements of safety procedures and safety facilities of construction activities performed at high elevation. Since the level and amount of knowledge and experience depend on the person, engineers and supervisors should discuss various aspects of hazards and safety collaboratively. While supervisors should visit construction sites, they are usually too busy to pay a visit to site. Thus, an innovative approach is needed to provide the engineers and supervisors with a collaborative platform where some engineers are at the site and some supervisors are the office and where they can see the options of safety measures as well as the real construction site, for discussing safety measures. This study aims to develop a visualized and collaborative approach for simulating the construction activities operated at high elevation using Augmented Reality. This research is on-going and the prototype system is under development. The prototype will be tested at a real construction site.
Keywords: collaboration; construction safety; augmented reality; falling
Product Precision Information Modeling under Cooperative Virtual Assembly Environment BIBAKFull-Text 286-293
  Fengqiang Nan; Juntang Yuan
Considering the characteristics of cooperative virtual assembly process, the product feature information is classified in this paper. A precision-oriented cooperative virtual product assembly model is presented based on the tolerance expression of the part feature. The model includes four layers: the hierarchical relation layer, the connectivity relation layer, the feature layer and the feature element layer. With the help of the relation chain within each layer and the mapping information between the layers, different engineering information is integrated. Finally, a new algorithm of automatic generation of dimension chains in cooperative virtual assembly environment is described by using searching mechanisms.
Keywords: Cooperative visualization; Cooperative virtual assembly modeling; assembly dimension chains
Task Scheduling of Collaborative Product Design Project BIBAKFull-Text 294-299
  Le Luo; Xiaodong Zhang; Yingzi Li; Shuo Zhang
Multi-mode resource-constrained project scheduling algorithm is widely used in project static planning. However, in collaborative product development projects, human is a kind of special resource in contrast to the technology resource which should be considered separately. Starting from this point, this paper introduces the designer-task-resource matching matrixes into the multi-mode resource-constrained scheduling model. The mathematics model of the problem was formulated and solved using a genetic algorithm. A case study was illustrated based on the model. The result shows that the method can obtain the minimum project duration by allocating most suitable person and resource to the task under the constraints of task relations.
Keywords: Task scheduling; Collaborative product design; Multi-mode