A generic late-join service for distributed interactive media

Vogel, Jürgen; Mauve, Martin; Geyer, Werner; Hilt, Volker; Kuhmünch, Christoph

doi:10.1145/354384.354500

Cited by 17 publications

(11 citation statements)

References 10 publications

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“…Late joining [18] is a crucial feature required in real-time collaborative editing to help prevent unnatural rendezvous limitations and restrictions. When using the replicated document architecture to simulate a shared document simultaneously edited by a group of distributed users, late joining aggravates the already difficult task of maintaining consistency.…”

Section: Late Joiningmentioning

confidence: 99%

CollabEd: A Platform for Collaboratizing Existing Editors

Granville

Hickey

2009

2009 International Conference on Mobile, Hybrid, and on-Line Learning

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CollabEd is a platform for easily collaboratizing linear editing systems. We will describe our modular design, which is geared toward building CollabEd plugins for existing editors and eliminating the need for developers to provide or understand the networking and data consistency controls required for real-time, synchronous collaborative editing. In this paper we showcase our open-source CollabEd application already ported for use with a number of popular programming editors (Eclipse, NetBeans, jEdit, etc.) and a drawing program (DrawSWF). The CollabEd platform is built on top of our optimistic replication datamodel (MSET) that preserves local-site editing response time without the use of operational transformation. One of the features we will highlight is the ability to save collaboration sessions for later playback with user-specific editing statistics.

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Section: Late Joiningmentioning

confidence: 99%

CollabEd: A Platform for Collaboratizing Existing Editors

Granville

Hickey

2009

2009 International Conference on Mobile, Hybrid, and on-Line Learning

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“…In order to synchronize local replicas, the system must provide appropriate communication and consistency control mechanisms. Since the membership of shared objects can be highly dynamic, the system also has to support late-joining users [23]. Besides ubiquitous access to data, replication helps to achieve good responsiveness.…”

Section: System Architecturementioning

confidence: 99%

Supporting activity-centric collaboration through peer-to-peer shared objects

Geyer

Vogel

et al. 2003

Proceedings of the 2003 International ACM SIGGROUP Conference on Supporting Group Work

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We describe a new collaborative technology that is mid-way between the informality of email and the formality of shared workspaces. Email and other ad hoc collaboration systems are typically lightweight and flexible, but build up an unmanageable clutter of copied objects. At the other extreme, shared workspaces provide formal, structured collaboration, but are too heavyweight for users to set up. To bridge this gap between the ad hoc and formal, this paper introduces the notion of "object-centric sharing", where users collaborate in a lightweight manner but aggregate and organize different types of shared artifacts into semi-structured activities with dynamic membership, hierarchical object relationships, as well as real-time and asynchronous collaboration. We present a working prototype implemented with a replicated peer-to-peer architecture, which we describe in detail, and demonstrate its performance in synchronous and asynchronous modes.

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“…RTP/I offers some generic services, e.g. a consistency service [22] and a generic late-join service [23]. The late-join service defines different late-join policies, e.g.…”

Section: Related Workmentioning

confidence: 99%

Transparent Latecomer Support for Synchronous Groupware

Lukosch

2003

Groupware: Design, Implementation, and Use

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Abstract. In a collaborative session users may join and leave. A user who joins a session is called a latecomer. A latecomer needs the current state of the collaborative session to participate in the session. There exist different approaches to accommodate a latecomer. The runtime system can, e.g., transfer the state to the latecomer or replay how the session state was reached. If the state is maintained on a well-known server, it is quite simple to supply the latecomer with the current state. However, if the server is not available, the latecomer cannot join. To increase the fault-tolerance, the runtime system has to use a decentralized approach. In this case, race conditions must be taken into account. DreamObjects is a platform that simplifies the development of shared data objects. It supports a direct state transfer as well as a replay and lets a latecomer choose how to join a session. Both approaches are completely integrated in the runtime system, work completely decentralized, and do not block the other participants in their current work.

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A generic late-join service for distributed interactive media

Cited by 17 publications

References 10 publications

CollabEd: A Platform for Collaboratizing Existing Editors

CollabEd: A Platform for Collaboratizing Existing Editors

Supporting activity-centric collaboration through peer-to-peer shared objects

Transparent Latecomer Support for Synchronous Groupware

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