> But the main disadvantage of these systems lie that its knowledge database > is too small and can only answer few questions. Internet may be the biggest > knowledge database, so we proposed the DRIS, which will act as the > knowledge source of such personal intelligent systems. without looking into DRIS... Knowledge base for the whole Internet? The Internet based information is so dynamic (see the use SRV and dynamic DNS.) IMO, the hierarchy and zone delegation nature of DNS is a scalable one. It is hard to populate the knowledge base for the whole Internet. I know Dave clark et all has recently proposed a overlay knowledge plane architecture which use sensors and actuators to feed knowledge (but, it is for network management purpose.) In any case, you should take this issue to the right forum. SIREN RG? > At all, we need an answer, but not piles of jumbled hyperlinks. you should provide us with a link(http://202.114.9.200/English/main.htm) that works.