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SUMMARY:TIME-EACM Middleware Report - David Ingram\, Computer Laboratory\,
  University of Cambridge
DTSTART:20061010T133000Z
DTEND:20061010T143000Z
UID:TALK5380@talks.cam.ac.uk
CONTACT:Minor Gordon
DESCRIPTION:The second iteration of the TIME-EACM Middleware is called SBU
 S. We're currently at the late design stage. Our target application is com
 plex distributed sensor stream processing\, such as in road traffic monito
 ring\, although the architecture is intended to be general-purpose.\n\nThe
  design has an unusual structure which is decentralised (P2P) for scalabil
 ity but retains most of the semantics of a centralised system. It attempts
  to unify all possible pairwise interaction patterns\, including messages 
 and RPC's\, but most significantly supports stream-based communication.\n\
 nIt is specification-oriented\, using XML schemas to describe API's. It ha
 s self-monitoring of component status\, topology and performance. Access c
 ontrol is role-based. There is support for migration\, replication\, load 
 balancing\, failover\, and flow control.\n\nThe requirement for reliable c
 ontinuous operation of streams in the presence of failures\, live topology
  changes and data format evolution has led to some interesting research qu
 estions. 
LOCATION:Room FW26\, Computer Laboratory\, William Gates Building
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