Intelligent creation of notification events in information systems: concept, implementation and evaluation

ABSTRACT

An important feature of information systems is the ability to inform users about changes of the stored information. Therefore, systems have to 'know' what changes a user wants to be informed about. This is well known from the field of publish-/subscribe architectures. In this paper, we propose a solution for information system designers of how to extend their information model in a way that the notification mechanism can consider semantic knowledge when determining which parties to inform. Two different kinds of implementations are introduced and evaluated: one based on aspect oriented programming (AOP), the other one based on traditional database triggers. The evaluation of both approaches leads to a combined approach preserving the advantages of both techniques, using Model Driven Architecture (MDA) to create the triggers from a UML model enhanced with stereotypes.

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INDEX TERMS

Primary Classification:
  H. Information Systems
  H.3 INFORMATION STORAGE AND RETRIEVAL
      H.3.4 Systems and Software
          Subjects: User profiles and alert services

Additional Classification:
  D. Software
  D.2 SOFTWARE ENGINEERING
        D.2.11 Software Architectures
            Subjects: Domain-specific architectures

  H. Information Systems
  H.4 INFORMATION SYSTEMS APPLICATIONS
      H.4.0 General

Keywords:
aspect oriented programming (AOP), database triggers, knowledge management, notification service, publish/subscribe