The design of digital items server for processing multi DI clients on ubiquitous environments

To stream adapted contents to a variety of devices such as PDA, PC, HDTV and so on, on ubiquitous environments, digital items (DI) client access DI server to get information for adapted contents streaming and to store data related with streaming service. When a lot of DI client concurrently connect DI server, to increase the performance of the DI server in working process related with adapted streaming, we propose new technique that there are some main controller threads and each main controller thread has its own FIFO, which manages DI messages. Because each main controller thread has its own FIFO, by distributing DI messages to some main controller thread that is less busy, we make DI server keep good performance and condition