Yeast: A General Purpose Event-Action System

ArticleinIEEE Transactions on Software Engineering 21(10):845 - 857 · November 1995with7 Reads
Impact Factor: 1.61 · DOI: 10.1109/32.469456 · Source: IEEE Xplore


    Distributed networks of personal workstations are becoming the
    dominant computing environment for software development organizations.
    Many cooperative activities that are carried out in such environments
    are particularly well suited for automated support. Taking the point of
    view that such activities are modeled most naturally as the occurrence
    of events requiring actions to be performed, we developed a system
    called Yeast (Yet another Event Action Specification Tool). Yeast is a
    client server system in which distributed clients register event action
    specifications with a centralized server, which performs event detection
    and specification management. Each specification submitted by a client
    defines a pattern of events that is of interest to the client's
    application plus an action that is to be executed in response to an
    occurrence of the event pattern; the server triggers the action of a
    specification once it has detected an occurrence of the associated event
    pattern. Yeast provides a global space of events that is visible to and
    shared by all users. In particular, events generated by one user can
    trigger specifications registered by another user. Higher level
    applications are built as collections of Yeast specifications. We use
    Yeast on a daily basis for a variety of applications, from deadline
    notification to software process automation. The paper presents an in
    depth description of Yeast and an example application of Yeast, in which
    Yeast specifications are used to automate a software distribution
    process involving several interdependent software tools