Combining OMT and Booch Methodology to Manage Rules in the Resource Rescheduling Problem

The confrontation of problems that occur in the daily application of a resource schedule is a difficult and tedious process. Due mainly to unexpected events the realization of the planned timetable is impossible and must be changed. The Object-Oriented approach together with the Constraint logic programming paradigm was used to develop a system to support the day-to-day resource rescheduling of the German Lufthansa airlines. However the development of a generic system, being able to apply in a wide range of problem domains, was one of our main targets. The testing of legality of the produced solution, in order to comply with the complete set of the enterprise regulations, is one of the main required functionalities of such a system. For the analysis and design of the legality checking subsystem a combination of OMT and Booch methodology was used. Two CASE tools, Paradigm Plus from Protosoft and Rose from Rational Rose that respectively support the above methodologies were tested and utilised. In this paper a new approach to the resource rescheduling problem, as well as the experience gained from the use of the OMT and Booch methodology through the Paradigm Plus and Rose CASE tools are presented.