(19)

(11)

EP 1 381 992 A2

(12)

(88) Date of publication A3: 01.05.2003 (43) Date of publication: 21.01.2004 Bulletin 2004/04 (21) Application number: 02723906.0 (22) Date of filing: 18.04.2002

(51) International Patent Classification (IPC)7: G06F 17/60, H04L 29/06 (86) International application number: PCT/US2002/012338 (87) International publication number: WO 2002/087187 (31.10.2002 Gazette 2002/44)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 19.04.2001 US 839040 (71) Applicant: Informatica Corporation Palo Alto, CA 94303 (US)	(72) Inventors: NESAMONEY, Diaz Atherton, CA 94027 (US) MARKARIAN, James Belmont, CA 94002 (US) (74) Representative: Ebner von Eschenbach, Jennifer et al Ladas & Parry,Dachauerstrasse 37 80335 München 80335 München (DE)