An object-oriented design of a multimedia item pool

摘要

An item pool with multimedia data is a fundamental part of our project, Computerized Adaptive Test System of Chinese Proficiency This paper intends to present a design of a multimedia item pool from an object-oriented perspective. It is stressedthat OO approach is especially effective in modeling and managing complex multimedia data. We first introduce our system architecture using OO-layer method Multimedia data organization of the database is investigated and detailed class definition is given next. The object-oriented SQL4ike syntax of the query language is also simply described