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Sharing a calendar of tasks and events is a cornerstone in collaborative group work. Indeed, the individual work of the members of the group as well as the group work as a whole need the calendar to guide their activity and to meet the deadlines, milestones, deliverables of a project, etc. Additionally the members of the group should be able to work both offline and online, which arises when members...
Synchronous, and real-time web-based collaboration on text and multimedia content is a hot research subject. Currently collaborative multimedia applications are loosely defined. It is current practice to consider any application that allows users to connect to each other in order to exchange information in writing or through video streams, in real-time, or near real-time, as a “collaborative application”...
In this paper, we present SRCS, a system for Web browser Sharing and Collaboration that permits users within a group to share information and to cooperate based on the WWW at the same time. It is a pure browser-based solution without the involvement of any third-party platforms, servers changing and any other special client-side software installation. In addition, this paper shows that the implemented...
This paper proposes a group synchronization control scheme with prediction in collaborative haptic play with building blocks. The scheme adjusts the output timing among multiple terminals and keeps the interactivity high. It outputs position information by predicting a future position later than the last-received position information by a fixed amount of time. It also advances the output time of position...
Ad hoc collaboration across organizational boundaries is gaining importance. In a networked world, organizations interact across diverse system landscapes with partners and customers. Traditionally, facilitating the collaboration of dispersed participants in heterogeneous environments required the same software on all client systems. This entry barrier can be lowered by leveraging the ubiquitous web...
The distribution of real-time GIS (Geographic Information System) data among users is now more important than ever as it becomes increasingly affordable and important for scientific and government agencies to monitor environmental phenomena in real-time. A growing number of sensor networks are being deployed all over the world, but there is a lack of solutions for their effective monitoring. Increasingly,...
In this paper we describe a novel Model-View-Controller based architecture, Centralized Control, that introduces collaboration in single-users applications. The architecture is able to add collaboration with no need to modify the source code of the original single-user application, and providing also the capability to introduce group semantics into the new, collaborative application that is obtained...
Web-content publishing is a service that is mainly provided by traditional client-server architecture. However, traditional approach requires much computer and network resources and therefore is relatively expensive. There are methods to publish web-content directly from users own computers. But in these approaches users have to keep their computers switched on continuously to publish for 24 hours...
In normal distributed file system, the concurrency of same file's copies was paid many attentions. Actually the relationship between different files also affects the operation to the other files, especially in a serialized file group occurred in computer supported coordination work system (CSCW). We defined 2 new locks and proposed an improved distributed lock algorithm to support file linking to...
A state-synchronization method for physically based simulations provides equivalent visual scenes at remote sites on ring-like networks. The simulation runs independently on each participating site so that sites can immediately process and display any local user's action, allowing high responsiveness.
This paper presents a client/server design environment. In this environment, design tasks and clients are organised through working sessions generated and maintained by a collaborative server. The information from an individual design client during a design process is updated and broadcast to other clients in the same session.
In this paper, after studied relevant technologies of data synchronization, it proposes a data synchronization overall system framework, with the mobile CSCW outcome of the theory and practice, in a cooperative environment, against the environment of unstable wireless network and heterogeneous enterprise application. After a detailed discussion and analysis on the key technologies of general data...
Network bandwidth and communication links are often leaping instability in the distributed mobile network environment, and network links exist continued even broken. How to provide a stable and reliable network access capability in this particular network environment is an urgent task to solve. This paper presents a data structure model in collaborative environment against unstable wireless network...
This paper mainly discusses about the architecture of CSCW. Three mainstream architectures have been proposed. A CSCW application that built upon the hybrid architecture will be more flexible than others since two other architectures can be seen as the special cases of the hybrid architecture. However, how to select the servers among the workstations remains an open discussion. Most of the selection...
We propose a new online communication system that supports online real-time collaborative analyses with remote-sensing images by researchers at remote sites. Although several online conference systems for general purpose are available in recent years, their functions do not support fully for online collaborative work by researchers in the field of planetary sciences. Because existing online conference...
The discussion process plays an important social task in computer-supported collaborative learning (CSCL) where participants can discuss about the activity being performed, collaborate with each other through the exchange of ideas that may arise, propose new resolution mechanisms, as well as justify and refine their own contributions and thus acquire new knowledge. Indeed, learning by discussion when...
Developing collaborative applications presents a challenge in solving the communication and synchronization problems. In this paper, we introduce a framework created to assist the developers. The framework takes the advantage of the access grid (AG) components, venue server, venue client and event channel, aiming to build a collaborative environment. In addition, the framework contains two user interface...
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