Research on the COM-based reusability of evaluating models

Evaluation on system effectiveness takes a very important role in many applications, such as manufacture of large-scale equipments. As the core of effectiveness evaluation, the evaluating model defines the data abstractions and running rules for evaluation procedures. In current situation, we have to implement the evaluating model for different applications, even though they have the same model. This leads to many repetitive works. Aiming at solving this problem, this paper introduces a design method for reusable evaluating models, which utilizes the COM technology to construct evaluating models as independent COM components. Through this technique, a base of reusable evaluating models is expected to be implemented. To illustrate the key issues related with our idea, we choose the ADC model as the example. The COM implementation of the ADC model as well as its integration with applications is discussed in detail, and a practical evaluating experiment is presented. The experiment result shows that our method can not only ensure the reusability of evaluating models but also make it easy to integrate models with different effectiveness evaluating systems. Therefore, it can meet different demands of effectiveness evaluating systems and improve the developing efficiency and maintainability.