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Computer Supported Cooperative Work in Design, 2008. CSCWD 2008. 12th International Conference on

Date 16-18 April 2008

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  • Table of contents

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  • Proceedings of the 2008 12th international conference on computer supported cooperative work in design

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  • Proceedings of the 2008 12th international conference on computer supported cooperative work in design

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  • Proceedings of 2008 12th International Conference on Computer Supported Cooperative Work in Design

    Page(s): i - x
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  • Customization, collaboration, competition and contracting in design

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    Is design collaboration a technology looking for solutions? Or, has design collaboration been widely used but it just has not received proper recognition? They have been haunting questions in the CSCW research community. This presentation attempts to approach these questions by examining high impact applications such as collaborative design platform used for building design and construction. 'What works' and 'what are missing links?' will be reviewed and discussed. In the mean time, several key research issues related to design collaboration, in particular, customization, competition and contracting will be addressed. Potential approaches toward these issues will also be discussed. View full abstract»

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  • ArtifactWebs: Navigable product structures

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    Students working on team-based design courses often have difficulty tracking the evolution of their design. Student teams seldom have complete meeting notes and frequently backtrack on previous decisions, wasting substantial time and resources. As documents are generated by different team members at different times during a project, not everyone is aware of what is in all the documents. Locating the right information among evolving documents such as different versions of the same document (e.g., a final report), or static documents that are referred to frequently (e.g. a key reference or manual) can be time consuming and often futile. Even for teams with well-structured document management systems, finding the correct paragraph or document fragment for a given topic can be difficult. In addition, as the design progresses, it becomes increasingly difficult to keep track of the progress made by other team members as well as the options already explored by them. These problems exist for both industry and student teams, but are usually more severe for students who are novices in the design process. Another problem for student design teams is that of requirements deviation, in which the interpretation of decisions by different team members may be not only different, but often conflicting. Detecting such problems as they occur would be advantageous for the team and increase the probability of the project's success. Students lack both the tools and the perspective to structure and manage the documents that they generate and use. Our goal is make it easier for student teams to manage their design process by being able to: (1) see the current state of the project they are working on and check if they are missing a crucial part, and (2) focus their efforts on a particular artifact of interest in completed projects, regardless of where it occurs in the documents. To accomplish this, we propose to create navigable ArtifactWebs that will help design team members to visualize th- e current state of the project based on the artifacts described in the project documents and technical discussions. In this paper, we present a preliminary version of the ArtifactWeb, based on three years of data from a multidisciplinary team-based design course, which is offered every spring at Carnegie Mellon University. View full abstract»

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  • Emerging view of service-oriented computing and applications

    Page(s): 3
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    E-Business and E-Commerce applications have evolved and been revolutionized through emerging Web-based service-oriented technologies. These advanced technologies include Service Oriented Architecture (SOA), Service- Oriented Computing (SOC) and Web services that stimulate evolution of the business world into a new e-business platform. This web based platform (requires a flexible IT infrastructure) provides improved customer experiences and can streamline business process to create new business values in a fast changing business environment. Recently, we have seen an explosion in the number and the diversity of digital communities. Enabled by emerging technologies such as social networking and 3D internet, these digital communities are providing new forms of interactions and collaborations. In addition, Service Science, Management and Engineering are emerging as a new multi-disciplinary research and academic effort to make the service sector more productive and innovative. SOA/SOC not only provides a new concept in the design and management of software systems but also provides IT people with more agility than before in terms of software interoperability, reusability and visibility. In this talk, we will present the industry trends and directions on service oriented computing and applying SOA/SOC in building next generation web based collaborative applications, software as a service, and IT-enabled services. View full abstract»

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  • Chinese characteristic e-Learning technical solution SkyClass: A novel e-Learning system over satellite and computer network

    Page(s): 4
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    Aiming at three serious problems in educational area of China, i.e., short of excellent educational resources, digital disparity and fast growth of continue education and professional training, a novel e-Learning system called SkyClass over the hybrid network based on satellite and computer network is designed, SkyClass has the obvious merits in the combination of satellite's full coverage transmission capability and computer network's bi-direction communication. This report presents SkyClass architecture and system design scheme, it is a "five in one"solution, which involves living teaching field broadcasting, recording, learning on demand, resources management and Web answering five functions. Key technologies in SkyClass implementation, such as the design of kernel component for connection of satellite and internet named DVB/IP gateway, large scale interactions among teacher and students, multiple fields recording and stream media courseware generating, vast amount of e-Learning resources management, and so on are discussed in this presentation. SkyClass has been implemented and applied in Xinjiang, Gansu, Shaanxi, Henan etc. 11 provinces in west and middle of China. It makes great contribution to the China's e-Learning project and saves about one billion yuans of education cost. This achievement won the 2006 annual National Science and Technology Progress Award of China. View full abstract»

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  • Design and implementation of a collaborative conference management system

    Page(s): 5 - 10
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    In the last few years, several Web-based conference management systems have been developed and used by many international conferences. However, almost all of them were built on stand-alone Web servers. Their fault-tolerance, scalability and ability of responding to dispersed users are limited. Aimed at addressing these problems, this paper presents a collaborative conference management system, whose fault-tolerance, scalability and ability of responding to dispersed users are greatly enhanced by collaboration technologies. A prototype system has been implemented and used to facilitate the management of submissions and paper reviews of the CSCWD2008 conference. View full abstract»

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  • Systems integration and collaboration in construction: A review

    Page(s): 11 - 22
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    Rapid advancement of information and communication technologies has brought both challenges and opportunities to the construction industry. There have been significant research and development efforts on the application of systems integration and collaboration technologies in construction. This paper presents a research literature review on systems integration and collaboration in architecture, engineering, construction, and facility management (AEC/FM), and discusses challenging research issues and future research opportunities. View full abstract»

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  • AAM: A conceptual model for CSCW

    Page(s): 23 - 28
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    One main goal of CSCW is to achieve efficient communication, collaboration and coordination of group activity. The present conceptual models are insufficient in their flexibility, support for concurrent and asynchronous transactions, or applicable extension in CSCW systems. This paper proposes a new conceptual mode, namely AAM, which is based on anonymous agents. First we give its formal definition and characteristic analysis. And then, by an application example, we demonstrate how the AAM model supports dynamical agent assembly and how it can be applied to various collaborative work situations. View full abstract»

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  • Tell us your process: A group storytelling approach to cooperative process modeling

    Page(s): 29 - 34
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    Business process modeling is expensive and time consuming. It depends very much on the elicitation method and the person in charge. The model needs to be shared in order to promote multiple perspectives. This paper describes a group storytelling approach as an alternative to the traditional individual interviews to elicitate processes. The form of information gathering is the stories told by processes' performers, who describe their work, difficulties and suggestions. A process to abstract and transform stories into business process representations is also part of the method. A tool to support storytelling and this transformation is also described. View full abstract»

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  • Semantic consistency maintenance in collaborative graphics design systems

    Page(s): 35 - 40
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    Collaborative graphics design systems allow users, spread across different locations, to work together designing common patterns. One key element that, in most cases, is poorly supported in such systems is semantic preservation. To make the real-time collaborative graphics design system more efficient, it is essential that the semantic violation problem be well solved. In this paper we present the semantic maintenance architecture and the classification of semantic preservation. A new approach and related algorithm that can resolve semantic conflict problem efficiently is also proposed. Semantic consistency maintenance helps to promote the collaborative awareness abilities. The architecture and algorithm has been tested in the CoDesign prototype system. View full abstract»

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  • A consistency maintenance algorithm with cursor position maintenance in real-time cooperative editing systems based on GOT algorithm

    Page(s): 41 - 46
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    Consistency maintenance is a fundamental issue in real-time cooperative editing systems. Generally, GOT algorithm is more capable to maintain consistency of documents due to its independence of C2, while other operational transformation algorithms may rely on C2 which is difficult to verify. But GOT algorithm doesn 't refer to cursor position maintenance which is very important in an editing system. In this paper, a cursor position maintenance algorithm is proposed to improve GOT algorithm. With the improved algorithm, the cursor position of shared documents will be recalculated after each operation has been executed, thus the consistency of shared document will be maintained and the cursor will be maintained at its correct position at each site. View full abstract»

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  • Building web domain data integration system with user collaboration

    Page(s): 47 - 51
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    With the rapid development of the Internet, the Web is becoming the largest information repository of the world. Major efforts have been made in order to integrate the data of a specific domain on the Web. The traditional methods are largely done by few of system administrators which do not adapt to web scale. The construction of a web domain data integration system (WDDIS) becomes an urgent task The paper describes a new idea which asks the users to help the builders incrementally build WDDIS. It proposes an architecture of WDDIS and describes the mechanism of user collaboration. The approach shifts the enormous endeavors from the producers to the consumers which will promote WDDIS to be constructed quickly and effectively. View full abstract»

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  • Internet-enabled transmission streaming technology of 3D mesh model

    Page(s): 52 - 57
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    Large-volume 3D triangle mesh model has large difficult to render, store, and transmit in Internet. This research investigates a 3D (3-dimension) streaming technology to overcome the difficulties in model transmission over Web. Edge collapse based mesh simplification and progressive mesh refinement are studied, which is crucial to establish 3D streaming technology. A prototype with GUI for mesh simplification and refinement and peer-to-peer network architecture are developed to implement the 3D streaming technology for Internet-enabled transmission of 3D mesh model. View full abstract»

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  • Interactive product configuration driven by customer requirement’s priority

    Page(s): 58 - 63
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    To avoid repetitiveness and invalidation in product configuration, in this paper, a new approach to configuration design based on customer requirement's priority is presented. Firstly, a configuration model is constructed and translated into CSP model. Secondly, in the stage of interactive configuration, customer configured more important issue earlier than other issues. The check configuration process has to reduce the variant space provided by the CSP model with regard to the outcome of the previous configuration. As a result, customer demands with consistency and reduced configuration structure are achieved. Finally, under the optimization conditions of customer wish requirement, the reduced configuration structure is optimized to gain final BOM of the configured product. View full abstract»

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  • Conflict resolution for collaborative design based on rough set theory

    Page(s): 64 - 69
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    Due to the design knowledge discrepancy during collaborative design, conflicts can be revealed from the process of collaborative design decision. A critical element of collaborative design would be conflict resolution. The conflict resolution is correlative with both of the knowledge granulation and specific method provided. In this paper, granularity is used to describe rules acquainted based on the concept of rough degree. In this condition, A feasible distance formula between different rules is constructed according to the requirement of describing the distance between different rules and the definition of attribute significance in information system with rough theory, in which the operator of attribute importance is introduced, and then traditional conflict resolutions are analyzed. As a result, the concept of rule set evolution is put forward, and the instance is introduced to explain the efficiency of new method. View full abstract»

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  • On an agent-based architecture for collaborative continuous auditing

    Page(s): 355 - 360
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    Information technology has changed the way organizations do business and are driving the imperative changes in accounting and auditing. One of the fundamental changes is a move toward increased emphasis on internal control over the reliability of information systems. For a variety of reasons, it becomes necessary to examine and audit the transactions to understand the integrity of the information generated by an information system. Today the widespread availability of inter-networking dramatically makes it possible to increase the frequency of periodic audits by redesigning the auditing architecture around the idea of continuous auditing. In this paper, we have proposed an agent-based architecture to explore the idea of collaborative continuous auditing. For the evaluation of the architecture, JADE is chosen as the platform for implementation. View full abstract»

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  • A collaboration scheme for making peer-to-peer anonymous routing resilient

    Page(s): 70 - 75
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    Node churn is one hurdle to using peer-to-peer (P2P) networks as anonymous networks, which makes the anonymous path fragile and results in message loss and communication failures. A collaboration scheme including friendly neighbor-based incentive (FNI) and re-encryption mechanism is proposed to deal with the high node churn (changes in system membership) characteristic of unstructured P2P networks. The simple FNI mechanism is presented to encourage peers to forward other peers' queries, and establish more connections to improve the performance of P2P overlay network where only stable and well-behaved nodes can be chosen as relay nodes to prolong single path durability. The re-encryption mechanism is designed to replace those failed relay nodes and achieve routing resilience upon different node availabilities in real- world systems. The results from our security analysis and simulation show that the collaboration scheme greatly improves routing resilience and maintains low latencies and low communication overhead. View full abstract»

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  • Using Cognitive Walkthrough procedure to prototype and evaluate dynamic menu interfaces: A design improvement

    Page(s): 76 - 80
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    Menu interface usability has been regarded as a critical factor affecting the quality of software applications. This paper developed a method for automatically generating intelligent and dynamic menu to reflect different needs from different types of end users. The contents and structures of the menu are dynamic and adaptive to the usage context (user and task). Such implementation was based on the Cognitive Walkthrough procedure and automatic instrumentation. This paper also described a pilot study performed to evaluate the effectiveness of the dynamic menu. Preliminary results showed that the dynamic menu interface reduced the time for menu search per task significantly than the normal menu interface. The total time for completing a series of tasks was also reduced significantly. View full abstract»

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  • A collaborative framework for parallel view maintenance

    Page(s): 81 - 86
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    Materialized view maintenance is an important research area in the database and data warehouse area. Currently, most of the view maintenance methods are based on the C/S model, which will lead to overload and even crash at the end of data warehouse. A model of P2P-based collaborative view maintenance is proposed, which can not only exploit the potential merits of P2P and CSCW, but also overcome the above mentioned problems. Furthermore, a collaborative maintenance algorithm is proposed. Finally, the evaluation shows the proposed strategy achieves better performance both on the message number and the total execution time. View full abstract»

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  • A novel coordination mechanism in cooperative pattern design systems

    Page(s): 87 - 92
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    Coordination mechanism is a critical issue in the cooperative work. However, there are no universal and efficient coordination mechanisms that are fit for the collaborative graphic designing system accounts for it's special characteristic and properties. In this paper we propose a novel intelligent coordination mechanism, which enable members to concentrate on the most of controversial part of the cooperative work by utilizing human awareness information. Related algorithm that includes two key concepts: expectation and convergence is proposed. The mechanism and algorithm have been realized in our prototype system and are proved significantly promote the coordination efficiency. View full abstract»

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  • A cooperative browser-level web caching system based on chord

    Page(s): 93 - 97
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    In this paper, we propose a hybrid and cooperative browser-level web caching system based on chord. Each node in this system contacts with each other for web cache sharing. As a result, when a miss occurs in local web cache and web cache server, the request would be sent to a remote node in the chord or its web cache server. So workload of server would decrease and hit ratio would increase through resource sharing between browser 's web caches. Taking both local web cache and web cache server into account, we improve the resource searching algorithm to be distributed and hybrid. Finally, we examine and evaluate the permanence of the system in simulation environment. And results show system can achieve a better hit ratio. View full abstract»

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  • A general objects network management platform based on MOF

    Page(s): 98 - 103
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    The author brings forward a general object network management platform based on MOF (meta object facility) in the paper. The platform is based on MOF model gave out by OMG, and adopts the modeling idea of model driver and MOF meta-meta model (namely the model of the meta model). In addition, the model driver idea is applied in the software development process; software development is based on a high layer model abstract. Those objects which need to be managed are abstracted layer by layer and make an independent model in different layer. So, software development process is switched into objects modeling process, and the model structure of whole network management platform is built up step by step. The object modeling is not affected by realization technology and platform. It could realize the upgrade and expansion of network management software quickly, solve the problems of flexibility, diversity and changeability that is currently met by network management software, rapidly adapt the demands of network continuously expansion and operation enlarge, improve the reuse ability of models. View full abstract»

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