Towards a Cooperative Transaction Model - The Cooperative Activity Model

Towards a Cooperative Transaction Model - The Cooperative Activity Model

Abstract

With the emergence of cooperative applications it turned out that traditional transaction concepts are not suitable for these scenarios. Isolation of transactions, as guaranteed by the ACID transaction properties, contradicts the need of cooperation between users. In this paper, we propose a cooperative activity model that provides transactional properties suitable for cooperative scenarios. Each user participating in a cooperative activity has his own private workspace that is isolated from other users. Cooperation is achieved by controlled exchange and synchronization of the contents of workspaces among the users and by installing results of their activities in the common activity database. Our model ensures that the joint execution of a cooperative activity is equivalent to one that could have been carried out by a single user. We discuss our cooperative activity model in different scenarios, one requiring a close cooperation in an authoring environment, and the second implementing a workflow-like scenario.

Grafik Top
Authors
  • Klas, Wolfgang
  • Rusinkiewicz, marek
  • Tesch, Thomas
  • Wäsch, Jürgen
  • Muth, Peter
Grafik Top
Shortfacts
Category
Paper in Conference Proceedings or in Workshop Proceedings
Event Title
21st International Conference on Very Large Data Bases (VLDB '95)
Divisions
Multimedia Information Systems
Event Location
Zürich, Switzerland
Event Type
Conference
Event Dates
1995-09-11
Page Range
p. 11
Date
September 1995
Official URL
ftp://ftp.darmstadt.gmd.de/pub/oasys/reports/P-95-...
Export
Grafik Top