Federating Process-Centered Environments: The Oz Experience

  • Authors:
  • Israel Z. Ben-Shaul;Gail E. Kaiser

  • Affiliations:
  • Technion-Israel Institute of Technology, Department of Electrical Engineering, Technion City, Haifa 32000, Israel. E-mail: issy@ee.technion.ac.il;Columbia University, Department of Computer Science, New York, NY 10027, USA. E-mail: kaiser@cs.columbia.edu

  • Venue:
  • Automated Software Engineering
  • Year:
  • 1998

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Abstract

We describe two models for federating process-centeredenvironments (PCEs): homogeneous federation among distinctinstances of the same environment framework enacting the same ordifferent process models, and heterogeneous federation amongdiverse process enactment systems. We identify the requirements andconsider possible architectures for each model, although weconcentrate primarily on the homogeneous case. The bulk of the paperpresents our choice of architecture, and correspondinginfrastructure, for homogeneous federation among MARVEL environment instances as realized in the OZ system. We brieflyconsider how a single MARVEL environment, or an OZfederation of MARVEL environments, might be integrated into aheterogeneous federation based on ProcessWall‘s facilities forinteroperating PCEs.