ABSTRACT Name : I Ketut Resika Arthana Program of Study : Magister of Computer Science Title : Multi-Channel Access in Multimedia Information Retrieval System The development of technology has impact on the improvement of the multimedia content. The multimedia information retrieval system offers solution on searching multimedia content. Most of the access to the multimedia information retrieval system is only provided by one channel access. Meanwhile, nowadays, there are various communication devices could be used to access multimedia content. The limitation of access service provided by the multimedia information retrieval system with its various access service from communication devices reduce access opportunities to the multimedia information retrieval system. The existing communication devices at this era have different characteristics such as the ability to play audio, video, limitation of screen size and network connection. Besides that, the development of communication device access technology demand multimedia information retrieval system able to provide access service dynamically so that it could maintain the accessibility of multimedia information retrieval system. Regarding to that, in this study the we build Multi-channel Access architecture so that the service of multimedia information retrieval system can be accessed from various communication devices. The research methodology consists of problem identification; create sample data, architecture design, implementation and testing, and evaluation. The architecture produced consists of access provider module, integrator module, content adaptation module, and multimedia information retrieval system module. The result of testing shows that the users have more access options (accessibility) to the multimedia information retrieval system, it increase data availability for various communication devices and dynamic integration method (interoperability) for the additional access service. Keywords: Multi-Channel Access, Multimedia Information Retrieval System, Content Adaptation