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Architectural Issues of Web−Enabled Electronic Business phần 6

Lưu ý rằng nó cũng có thể sử dụng các phương pháp tiếp cận khác nhau lai. Akamai Technologies (www.akimi.com), ví dụ, bằng cách sử dụng một lai của hai cách tiếp cận được mô tả trong hình 7 (a) và (b). Tuy nhiên, tùy theo điều kiện nào thực hiện phương pháp được lựa chọn, công việc chính của chuyển hướng | References The mobile agent technology was employed to enhance the performance by reducing network traffic. A certain scenario was proposed for the mobile agents to move throughout the network. More intelligent schemes can be proposed for application areas that requires for example intelligent on-site data processing filtering. There are some other ideas to employ different technologies in an extended architecture. Among these ideas is the use of agents to perform some on-site data mining to retrieve different frequently accessed patterns of data at each data server client domain. Then these patterns can be used to predict user behavior and prefetch the most likely accessed data according to the frequent data access patterns. Another idea is to use the mobile agent to perform some kind of intelligent data filtering at the data server site. This will include some learning schemes and AI to perform more sophisticated analysis of the data before sending it back. Applying such techniques may further reduce the network traffic and enhance the performance. Peer-to-peer networks are getting wide acceptance nowadays. Such a truly distributed system will allow users to exchange data freely and easily. Napster Gnutella and Freenet are well known examples for such systems. The idea is to use the same scheme to exchange the multimedia data based on its semantic contents. The architecture proposed here cant be considered a client server one neither can it be considered a simple N-tier architecture. In addition moving to the peer-to-peer option will need to have nodes acting as both data sources and clients. Many issues are to be researched such as query processing availability and using hyper nodes acting mostly as servers versus simple user nodes acting mostly as clients . References Abugabal M. Ahmed m. Saad A. Moharrum M. 2000 . Modeling and semantic content-based querying of multimedia databases. Proceedings of the 6th International Workshop on Multimedia Information .