(19)

(11)

EP 1 723 550 A1

(12)

(43) Date of publication: 22.11.2006 Bulletin 2006/47 (21) Application number: 04707080.0 (22) Date of filing: 30.01.2004

(51) International Patent Classification (IPC):  G06F 17/30(2006.01) (86) International application number: PCT/US2004/002741 (87) International publication number: WO 2005/081137 (01.09.2005 Gazette 2005/35)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR (71) Applicants: INTERNATIONAL BUSINESS MACHINES CORPORATION Yorktown Heights, NY 10598 (US) EILAM, Tamar New York, NY 10025 (US) HUNT, Guerney D. Yorktown Heights, NY 10598 (US) MILLER, Sandra D. Winchester Hampshire SO23 0PW (GB) MUMMERT, Lily B. Mahopac, NY 10541 (US)	(72) Inventors: EILAM, Tamar New York, NY 10025 (US) HUNT, Guerney, D. Yorktown Heights, NY 10598 (US) MILLER, Sandra, D. Winchester, Hampshire SO23 0PW (GB) MUMMERT, Lily, B. Mahopac, NY 10541 (US) (74) Representative: Roberts, Scott Anthony  IBM United Kingdom Limited Intellectual Property Law Hursley Park Winchester Hampshire SO21 2JN Winchester Hampshire SO21 2JN (GB)