Time-Critical Rescheduling Using Truth Maintenance


TRUTH - 6463

Keywords decision-support systems, scheduling


Start Date: 01-JUN-92 / Duration: 36 months

[ contact / participants ]


Objectives

The objective of the TRUTH project is to develop rescheduling systems that react quickly to changes in machine and staff availability or job priorities and that also provide schedules which can be easily modified with minimum disruption. A key feature of these schedules is that they should be readily understood by users.

The approach will be to:

Two pilot demonstrators are being developed, the first in the area of a tyre factory where rubber, chemical substances and oils are mixed and transformed to obtain finished compounds, and the second is a crew and flight rostering demonstrator.

The results will be exploited by software vendors in the consortium as a second-generation generic scheduling tool for factory production and job-shop scheduling in a wide variety of industrial applications, and also in airline schedulers.

Achievements so far

At the end of its first year, the TRUTH project had concluded its requirements and specifications phase and developed early prototypes of the communications modules, the prescheduler, the object-oriented database, the constraint-based scheduler, the human computer interface and the truth maintenance based dependency analysis prototype.


CONTACT POINT

Dr Fernando Caldeira-Saraiva
British Maritime Technology
1, Waldegrave Road
UK - Teddington TW11 8LZ
tel: + 44 / 81-943-5544
fax: + 44 / 81-977-9304
telex: 263118

Participants

BRITISH MARITIME TECHNOLOGY - UK - C
PIRELLI SPA - I - P
SYSECA - F - P
UNIVERSITY OF LEEDS
COMPUTER-BASED LEARNING UNIT - UK - P
SISCOG - P - P
IBERIA LINEAS AEREAS DE ESPAÑA - E - P


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TRUTH - 6463, December 1993


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html version of synopsis by Nick Cook