An event-driven information dissemination model

ABSTRACT

We note that over the past decade publish-subscribe systems have improved the ability of users to exchange information but we argue that these systems have been either restrictive or simplistic - relying on narrowly defined channels for data exchange. The Information Dissemination (INFOD) approach we present here introduces a flexible and dynamic framework for brokering information in publish-subscribe systems. INFOD enables communities of interest to constitute and use vocabularies to describe their interests as well as their capabilities (available information). Publishers, consumers and subscribers are real-world entities characterized in terms of vocabularies and constraints within an INFOD registry. Subscribers define subscriptions expressing events of interest at candidate publishers and constraints on the run-time event data. The registry matches entities based on subscriptions and constraints, and sets up event channels between them.

REFERENCES

• 1: GFD.110 Information Dissemination in the Grid Environment - Base Specification, Open Grid Forum (OGF), Jan 2008. <http://forge.gridforum.org/sf/go/doc14987?nav=1>.

INDEX TERMS

Primary Classification:
  C. Computer Systems Organization
  C.2 COMPUTER-COMMUNICATION NETWORKS
      C.2.0 General
          Subjects: Data communications

Additional Classification:
  C. Computer Systems Organization
  C.2 COMPUTER-COMMUNICATION NETWORKS
      C.2.4 Distributed Systems
  C.4 PERFORMANCE OF SYSTEMS

General Terms:
Design, Experimentation, Measurement, Performance