1. Introduction
In recently years, the developments of computer intelligence technology and network technology have greatly improved the quality of medical treatment service. Many new-style medical treatment systems have been developed [1], [2]. Due to employing various incompatible methods respectively, the most of existing medical systems lack abilities to collaborate with each other [3]. How to break the technical barrier disturbing the collaboration between them to build an open and collaborative medical treatment system is one of the difficult problems in desire need of resolve.