Digital right management can be used on digital copyright protection, access to control, trust management and other areas. Right expression language is an important component of DRM system. The purpose of this paper is to research the application of ODRL. It gives the introduction of development of right expression language firstly, and describes in detail the development process of ODRL used in popular, and discusses the frame structure of ODRL. This paper summarizes what ODRL need to improve in future and introduce it connecting with the concrete application scenarios. Lastly, the conclusion...
