Abstract: The content adaptation technology is used to realize universal multimedia access, in which the model of content system is one of the key problems. Based on the SOA, the content adaptation system is designed and complemented, which includes the functions of data management, service management, content adaptation and content service. The combined metrics of subjectivity and objectivity are accepted to evaluate the quality of service of the content adaptation system.

Key words: universal multimedia access, content adaptation, satisfied degree, service response time

摘要： 内容适配技术是实现通用多媒体访问的主流技术，如何实现内容适配系统是内容适配技术研究中的重要问题。基于SOA架构设计并实现内容适配系统。系统具有数据管理、服务管理、内容适配和内容服务功能。采用客观和主观指标结合的评价体系，对内容适配系统的服务质量进行评价。

关键词: 通用多媒体访问, 内容适配, 满意度, 服务响应时间