Mediating the Knowledge of End-Users and Technologists: A Problem in the Deployment of Scheduling Technology

A. Cesta, G. Cortellessa, F. Pecora, and R. Rasconi (Italy)


Knowledge engineering, scheduling, domain modeling, ap plications.


The aim of this paper is to report some issues related to problem modeling which arise in the deployment of scheduling components in real world contexts. We pro pose a methodology which enables the end-user to actively participate in the early stages of system development by contributing to the definition of problem instances in terms of domain-specific terminology. The proposed methodol ogy is provided in the form of a scheduling domain def inition language (trivially, called SDDL), which provides a procedural means for building scheduling problems in a "low-level" formalism such as RCPSP/max. We show how the use of SDDL allows to (1) mask the scheduling-related technicalities from the problem designer and (2) provide a means for the fast-prototyping of scheduling applica tions using off-the-shelf general purpose scheduling com ponents.

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