Semantic Representation and Enforcement of Electronic Contracts on Audiovisual Content

ii This Thesis presents a computer representation language for agreements on multimedia content and the mechanisms to exe-cute the agreements in the framework of a content distribution system. The presented model is able to represent complex clause terms and can be interpreted by logic reasoners. This work is assumed to be in the wider context of a multimedia distribution system, and it has been integrated with other elements defined in the international standard ISO/IEC 21000. This Thesis presents a computer representation language for agreements on multimedia content and the mechanisms to execute them in the frame-work of a content distribution system. Content distribution systems trade audiovisual material in exchange of economic compensation in a framework of secure transactions between iden