Based on the practice of developing intelligent mutimedia teaching courseware of C program language,the design and realization methodology of student model base in ICAI(Intelligent Computer Aided Instruction) is discussed from the point view of cognition and psycholog

After introducing the feature of data warehouse technology, this paper introduces the function realization of mathematic modellibrary and the frame of establishing mathematic model library based on data warehouse emphatically, which aims at enabling mathematicmodel to extract datum from data warehouse and thus make the running outcome of model provide exact information for decision-maker.

Design of student model in MAS-based distance tutoring system;

Amelioration and some complexity factors of the cognitive student model;

A Study of Web-based Student Model;

According to different considerations when the models are created, the production-inventory model may be classified as the general production-inventory model where the perishable items in warehouses are not considered and the production-inventory model for perishable items.

A production inventory model is put forward with time variable holding and shortage cost,based on the EOQ model while demanded with different backlogging rate during the shortage period under backlogging rate rele- vant to production.