定义一组概念及其相互关系，这些概念和关系应适用于未来计算机图形学标准的完整范围。可用于验证和完善计算机图形学的要求；确定对计算机图形标准和外部接口的需求；根据计算机图形学的要求开发模型；定义新的计算机图形标准的体系结构；比较计算机图形标准。

Defines a set of concepts and their inter-relationships which should be applicable to the complete range of future computer graphics standard. May be applied to verify and refine requirements for computer graphics; to identify needs for computer graphics standards and external interfaces; to develop models based on requirements for computer graphics; to define the architecture of new computer graphics standards; compare computer graphics standards.