Abstract: An RSS (really simple syndication) feed based EPG (electronic program guide) processing system includes: a plurality of user devices; a plurality of television program servers for providing EPG information of television channels via the Internet; and an EPG processing server for receiving a user's demand from a user device and for providing to the user device user-specific EPG information according to the user's demand. In the EPG processing system, a plurality of first RSS feeds, for interoperating with the television program servers via the Internet, are registered to the EPG processing server. The EPG processing server obtains and stores the EPG information of each television channel by using each of the first RSS feeds, generates the user-specific EPG information corresponding to the user's demand by searching for the stored EPG information according to the user's demand, and provides the user-specific EPG information to the user device.

Abstract: Provided is a device for storing a rule describing an event, a condition to be satisfied by the event, and an action to be executed when the condition is satisfied and executing the action of the rule in an expended structure for using web services so as to effectively process the web services in various devices as well as a computer. In addition, a global rule manager for inspecting the validity of the rule when the rule is stored and executed is provided. Accordingly, the web services can be effectively used in a ubiquitous environment.

Abstract: A significant drawback of the conventional XML parsers is that such parsers require relatively large software components, which causes load of a system that processes the XML documents to increase. Provided is an XML processor in which a part of XML processing is performed in a hardware manner based on independent hardware, thereby reducing computational load of a system and improving an XML processing speed, and an XML processing method performed in a system having the XML processor. The XML processor includes: a first memory storing software for performing an XML processing, variables, and values required to execute software; a hardware processing module performing a part of the XML processing in a hardware manner; a second memory employed by the hardware processing module; and a CPU controlling the XML processing by the software stored in the first memory.

Abstract: Provided is a method and apparatus for providing web services by which the performance of web services is improved and exchanges of a large quantity of messages are effectively supported. The method includes: preparing the preference information, which pre-describes information required by a web services provider, to provide web services requested by a web services requestor, and the web services provider interacting with the preference information to minimize the number of messages exchanged between the web services requestor and the web services provider.