Nelson R. Manohar and Atul Prakash. The Session Capture and Replay Paradigm for Asynchronous Collaboration. In Proceedings of the Fourth European Conference on Computer Supported Cooperative Work, pages 149--164, Stockholm, Sweden, September 1995.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....that they can be revisited later. Any of the media can be replayed in coordination with the others. From a synchronous group activity, they produce a multi media artifact that can later be reviewed, browsed, or studied asynchronously. Both PARC s WhereWereWe architecture [20] and work by Manohar [18] support this kind of multimedia replay. 3.3.# Summary of requirements Thus, to support virtual meetings between spatially and temporally separated colleagues, we require functionality drawn from the domains of real time communication and collaboration, asynchronous groupware tools, and meeting ....

Manohar, N. and Prakash, A. The Session Capture and Replay Paradigm for Asynchronous Collaboration, Autonomous Collaboration, in Proceedings of CHI 95, (Denver CO, May 1995), ACM Press, 218 -- 225.

....to the source of session in order to get high quality archives. For tightly coupled collaboration applications [8] there are relatively few recording systems that can be found in the literature. Manohar and Prakash present a system to capture and replay a session for asynchronous collaboration [9]. In this system, a session with an application s user interface is encapsulated into a data artifact, referred to as session object . Each session object is composed of several data streams that encapsulate audio annotations and user interactions with the application. 18 The replay of a session ....

N. R.Manohar and A. Prakash, "The Session Capture and Replay Paradigm for Asynchronous Collaboration", in H.Marmolin, Y.Sundblad, K.Schmidt9eds): Proceeding of the 4 th European Conference on Computer-Supported Cooperative Work, ECSCW'95, Kluwer Academic Publishers, 1995, pp. 149-164.

....software or has a different version of it. The system should be able to check versions, and download software when necessary. # Session capture and replay. Records of meetings are sometimes crucial. While capturing video is straightforward, capturing computational actions is more difficult [50]. The challenge remains on how to capture automatically the highlights of lengthy meetings in a concise manner. # Multi user undo. Many single user systems contain undo facilities. Yet undo in groupware is a hard problem. While a few researchers have been working in this area [60, 3] we still ....

Manohar, N.R. and Prakash, A. (1995) "The session capture and replay paradigm for asynchronous collaboration." in Proceedings of the ECSCW'95 Fourth European Conference on Computer Supported Cooperative Work, p149--164, September.

....its current state. In general, implementing a latecomer accommodation service is difficult, and hence, should ideally be done by a collaboration infrastructure. This is the approach taken in many systems such as Suite (Dewan, Choudhary, 1992) XTV (Chung, Jeffay, Abdel Wahab, 1994) a system by (Manohar, Prakash, 1995), and Habanero (NCSA) However, each of these systems provides its own latecomer accommodation service. Thus, there is no code sharing among these systems. Moreover, the latecomer accommodation service is tightly integrated with other aspects of the system. It is not possible for applications to ....

....on which our research is based. Next, we describe our approach. Finally, we give conclusions and directions for future work. 2. RELATED WORK Many collaboration systems such as Suite (Dewan, Choudhary, 1992) XTV (Chung, Jeffay, Abdel Wahab, 1994) GroupKit (Roseman, Greenberg, 1996) a system by (Manohar, Prakash, 1995), and Habanero (NCSA) support latecomer accommodation using different approaches. Suite is a collaboration infrastructure that provides to its application programmers the high level abstraction of a shared active variable. Suite determines how an active variable is displayed based on its type. ....

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Manohar, N. R. and Prakash, A., The Session Capture and Replay Paradigm for Asynchronous Collaboration, Proceedings of the Fourth European Conference on Computer-Supported Cooperative Work, September 10-14, Stockholm, Sweden, 149-164, 1995.

....[14] where the systems are placed within a matrix with a temporal and a geographical dimension: The system can be built for collaboration at the same time or at different time, the user of the system can be located at the same place or collaborate remotely. There are two modes of collaboration [23]: synchronous and asynchronous. The synchronous modality refers to collaboration that occurs in real time between two or more users whereas the asynchronous modality refers to collaboration that occurs offline, between one or more users. 1.2 The DISCIPLE Project This work is part of the DISCIPLE ....

N.R. Manohar and A. Prakash. The session capture and replay paradigm for asynchronous collaboration. In Proc. of European Conference on Computer-Supported Cooperative Work., pages 161--177, Stockholm, Sweden, September 1995.

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# N.R. Manohar and A. Prakash, "The Session Capture and Replay Paradigm for Asynchronous Collaboration," Proc. European Conf. Computer Supported Cooperative Work, pp. 149--164, Kluwer Press, 1995.

....goals, form sub groups, and bring in the tools they need at runtime. Further, users should be able to arrange their desktop displays according to individual needs. Scalability can also be facilitated by the support for asynchronous collaboration, such as the session record and replay capability [24]. In a large scale collaboration where participants may be distributed across different time zones and or continents, it is likely that participants sometimes join an ongoing group session or entirely miss a session. In such cases, asynchronous collaboration support such as the ability to record ....

N.R. Manohar and A. Prakash, "The Session Capture and Replay Paradigm for Asynchronous Collaboration," in Proceedings of the European Conference on Computer Supported Cooperative Work. 1995, pp. 149--164, Klewer Press.

....problems, we must consider how services are to be mapped to tools. There are two basic approaches. In the first approach, services of multiple tools are integrated into a monolithic application using carefully orchestrated, cooperating threads. Our previous prototype followed this approach [66, 67]. This approach delivers complete control over tool coordination and media integration problems since, at the thread level, fine grained scheduling and synchronization control is possible. Unfortunately, this low level control it also limits the flexibility of the resulting infrastructure (see ....

....these tasks with either analog or digital video. Both approaches are often inadequate for collaborative work due to the potential loss of collaboration content. The approach taken in this dissertation addresses the above problem by supporting the asynchronous sharing of an application workspace [67]. This is accomplished by extending an application object with our notions of replay awareness (i.e. the replayable application object class and its associated session object(s) as described in Chapters 3 and 5) The rest of this dissertation, however, generalizes the notion of replay awareness ....

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N.R. Manohar and A. Prakash. The Session Capture and Replay Paradigm for Asynchronous Collaboration. In Proc. of European Conference on Computer Supported Cooperative Work (ECSCW)'95, pages 161--177, Stockholm, Sweden, September 1995.

....and then work in a WYSIWIS (What You See Is What I See) collaborative session. However, a synchronous mode of collaboration can often be too imposing on the schedule of the participants. It requires that users be able to find a common time to work together but, in many cases, that is not easy. In [24, 25], we presented the WYSNIWIST (What You See Now, Is What I Saw Then) paradigm for asynchronous collaboration that allows users to record and replay an interactive session with an application. The paradigm introduced an associated data artifact, the session object, used to capture an interactive ....

....session recordings relates to research in (1) the replay of application workspaces, 2) the replay of stored multimedia, and (3) adaptive scheduling for the support of replay. The Replay of Application Workspaces The replay of a user session with an application workspace has collaborative value [1, 25]. The following are approaches to replay a user session with an application s workspace. Screen recorders, such as WatchMe (for NeXTs) and QuickTime Conferencing (for the Macs) represent an application independent approach to session capture and replay. Capture of a session occurs at the screen ....

N.R. Manohar and A. Prakash. The Session Capture and Replay Paradigm for Asynchronous Collaboration. In Proc. of European Conference on Computer Supported Cooperative Work (ECSCW)'95, Stockholm, Sweden, September 1995.

....to adjourn their work to a later time. In the second approach, the server effectively records an incremental change to the shared state. This allows the server to replay the updates at a later time, detailing how the shared state has reached a particular state. The record and replay capability [15] is especially useful for an end user who did not participate in a collaboration activity to find out not only the results of the activity but also how the results has been produced. Implementation Status and Usage Examples A prototype of the Corona server has been implemented as a ....

N. R. Manohar and A. Prakash. The Session Capture and Replay Paradigm for Asynchronous Collaboration. In Proc. of the Fourth European Conference on Computer-Supported Cooperative Work. Kluwer Academic Publishers, Sep. 1995.

....either analog or digital video. Both approaches are often inadequate for collaborative work due to the potential loss of collaboration content. Our approach addresses the above problem by supporting the asynchronous sharing of interactive application workspaces through the use of session objects [9] (see Fig. 1) In this paper, we extend this support to computer supported workspaces (herein CSW) composed of multiple tools as opposed to a monolithic application workspace. Such asynchronously shared CSWs are referred herein as replayable workspaces 1 . In this paper, we present an ....

....record playback) without affecting other CSW tools. reusability: limited impact to existing tools. It is desirable to reuse existing multimedia tools, such as audio, video, and interface tools. collaboration: support for collaborative features such as playback and annotation of session objects [9]. The rest of this short paper is organized as follows. First, we state our motivations for our research on replayable workspaces. Second, we outline the problems that need to be addressed so as to support a replayable workspace. Then, we present an architecture to address those issues. Then, we ....

N. Manohar and A. Prakash. The Session Capture and Replay Paradigm for Asynchronous Collaboration. In Proc. of ECSCW'95, pages 161--177, Stockholm, Sweden, September 1995.

....approaches are often inadequate for collaborative work due to (among other things) the potential loss of collaboration content. Our approach addresses the above problem by supporting the asynchronous sharing of interactive application workspaces through the use of session objects, introduced in [14, 16]. In this paper, however, we extend this support to computer supported workspaces composed of multiple tools as opposed to a monolithic application workspace. Our session objects allow to replay and annotate the process of how a task was performed. Session objects are manipulated through Vcr like ....

....of session objects through high level Vcr like commands such as record, replay, fast replay, pause, and so on. 3 BACKGROUND Our architecture allows the reuse of a session with a computer supported workspace across different times. We first overview background information about our first prototype [16], which allowed the capture and replay of a session with an interactive application workspace. 2 Then, in the next section, we introduce our new architecture as a substantial refinement, that provides modular and flexible support for the capture and replay of sessions on computer supported ....

[Article contains additional citation context not shown here]

N.R. Manohar and A. Prakash. The Session Capture and Replay Paradigm for Asynchronous Collaboration. In Proc. of European Conference on Computer Supported Cooperative Work (ECSCW)'95, pages 161--177, Stockholm, Sweden, September 1995.

....the task, e.g. at a later time, browse annotate the session; and (3) reuse the results and procedures, i.e. build upon the results contained in the workspace. Our approach addresses the above goals by supporting the asynchronous sharing of interactive CSWs through the use of session objects [14]. Such asynchronously shared CSWs are referred herein as replayable workspaces 1 . Our long term research focuses on the development of toolkits to support collaboration paradigms such as the asynchronous sharing of CSWs. This research is partially motivated by the needs of two projects at the ....

....and may be statefully dependent on previous events, state, or both. State data provides the basis for a restartable process formulation that allows re execution of events at an arbitrary time index. Finally, session objects are transportable objects, rooted as a file hierarchy of media directories [14]. The session manager remains unaware of stream dependent details such as naming scheme, data locality, re execution device, or layout of stream controller repositories. The data of a stream controller is currently represented using standard Unix filesystem support (i.e. byte stream files and ....

N. Manohar and A. Prakash. The Session Capture and Replay Paradigm for Asynchronous Collaboration. In Proc. of European Conference on Computer Supported Cooperative Work (ECSCW)'95, pages 161--177, Stockholm, Sweden, September 1995.

....approaches are often inadequate for collaborative work due to (among other things) the potential loss of collaboration content. Our approach addresses the above problem by supporting the asynchronous sharing of interactive application workspaces through the use of session objects, introduced in [14, 16]. In this paper, however, we extend this support to computer supported workspaces composed of multiple tools as opposed to a monolithic application workspace. Our session objects allow to replay and annotate the process of how a task was performed. Session objects are manipulated through Vcr like ....

....results and procedures (i.e. we want to build upon the results contained in the replayable workspace) 3 BACKGROUND Our architecture allows the reuse of a session with a computer supported workspace across different times. We first overview background information about our first prototype [16], which allowed the capture and replay of a session with Figure 2. The session management window provided by the replayable object class. The session management window provides Vcr like controls over the capture and replay of a session with a replayable application. Subclassing from the ....

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N.R. Manohar and A. Prakash. The Session Capture and Replay Paradigm for Asynchronous Collaboration. In Proc. of European Conference on Computer Supported Cooperative Work (ECSCW)'95, pages 161--177, Stockholm, Sweden, September 1995.

....[4] system. The UARC system provides several services for remote, collaborative analysis of atmospheric test data. For example, users can read analysis data and write annotations to that analysis data. Also, users can write recordings of analysis sessions to replay later or provide to other users [10]. The interface of the UARC system is shown in Figure 2. We enable clients to access our UARC WWW server by defining a home page for the server on Mo Writer Reader Directions for Viewer Viewer Spec Files Directions for Viewer Copy Read Edit Writes 1 4 3 2 Figure 4: Get directions for viewer ....

N. R. Manohar and A. Prakash. The session capture and replay paradigm for asynchronous collaboration. Submitted to ECSCW'95.

No context found.

Nelson R. Manohar and Atul Prakash. The Session Capture and Replay Paradigm for Asynchronous Collaboration. In Proceedings of the Fourth European Conference on Computer Supported Cooperative Work, pages 149--164, Stockholm, Sweden, September 1995.

No context found.

Nelson R. Manohar and Atul Prakash. The Session Capture and Replay Paradigm for Asynchronous Collaboration. In Proceedings of the Fourth European Conference on Computer Supported Cooperative Work, pages 149--164, Stockholm, Sweden, September 1995.

No context found.

N. Manohar, A. Prakash. The Session Capture and Replay Paradigm for Asynchronous Collaboration. In: Proc. of the European Conference on Computer Supported Cooperative Work 1995 (ECSCW'95), Stockholm, Sweden, ACM, New York, pp. 149-164, 1995.

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