language: en

Mixed-Initiative Management of Integrated Process-Planning and Production-Scheduling Solutions

David W. Hildum, Norman M. Sadeh, Thomas J. Laliberty, Stephen F. Smith, John McA'Nulty and Dag Kjenstad
Intelligent Coordination and Logistics Laboratory Center for Integrated Manufacturing Decision Systems The Robotics Institute Carnegie Mellon University
Pittsburgh PA 15213-3890

[412.268.7598 fax: 412.268.5569]

{HILDUM,SADEH,SFS,DAG}@ISL1.RI.CMU.EDU
Software Engineering Laboratory Raytheon Electronic Systems Raytheon Company
Tewksbury MA 01876-0901

[508.858.5756 fax: 508.858.5976]

LALIBERTY_THOMAS@CAEMAC.MSD.RAY.COM MCANULTY@CAESUN.MSD.RAY.COM

Abstract Increased reliance on agile manufacturing techniques has created a demand for systems to solve integrated process-planning and production-scheduling problems in large-scale dynamic environments. To be effective, these systems should provide user-oriented interactive functionality for managing the various user tasks and objectives and reacting to unexpected events. This paper describes the mixed-initiative problem-solving features of IP3S, an Integrated Process-Planning/Production-Scheduling shell for agile manufacturing. IP3S is a blackboard -based system that supports the concurrent development and dynamic revision of integrated process-planning and production-scheduling solutions and the maintenance of multiple problem instances and solutions, as well as other flexible user-oriented decision-making capabilities, allowing the user to control the scope of the problem and explore alternate tradeoffs (what-if scenarios) interactively. The system is scheduled for initial deployment and evaluation in a large and highly dynamic machine shop at Raytheon's Andover manufacturing facility.

Introduction