Tom Rules: um monitor de eventos, regras e gatilhos em um ambiente orientado a objetos.

Abstract

Th is work proposes a data model with active characteristics that intend to extend the object oriented model TOM, bringing more flexibility, wideness and simplicity in modelling aspects of the real world. The TOM Rules model is presented as an alternative to extend the TOM model, supplying it with active characteristics. The model divides the dynamics aspects into rules, events and triggers, treating them as commun objects. The model supports active rules, integrity constraints and derived knowledge. The proposed model is detailed and formally described. Following: 1) the TOM Rules subsystem implementation is detailed; and 2) the interface built to simplify the modelling of dynamics aspects in the environment is presented.