Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
1998-05-14
2001-03-06
Breene, John (Department: 2777)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000, C707S793000, C707S793000, C709S201000, C709S225000, C709S227000
Reexamination Certificate
active
06199065
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to information delivery systems and methods and in particular to online delivery systems and methods, such as are used for delivering information over the World Wide Web (WWW) and which are to some degree fault tolerant so that information can still be made available despite a number of machines/processes being inoperable. The latter is a particular concern of the financial services industry.
SUMMARY OF THE INVENTION
According to one aspect of the present invention there is provided a system for delivering information from a site, including database means, over a communications network to remote users upon request, wherein the site is comprised of a plurality of sub-sites each accessible by a common network address and each including respective database means, server means, means for logging-in users and means for storing details of logged-in users, wherein each sub-site user details storage means stores details of all users logged in to the plurality of sub-sites, wherein the plurality of sub-site database means are content mirrored, and wherein the system includes means to connect a user to one of the sub-sites and, upon failure of a component or process of the one sub-site, to transfer a user logged-in thereat to another of the sub-sites where the respective user request is complied with without requiring the user to login, details of the user being available from the respective storage means.
According to another aspect of the present invention there is provided a method for use in delivering information from a site, including database means, over a communications network to remote users upon request, wherein the site is comprised of a plurality of sub-sites each accessible by a common network address and each including respective database means, the plurality of sub-site database means being content mirrored including the steps of
(a) upon a user request for information, connecting the user to one said sub-site, logging in the user thereat, and passing details of the logged in user to all said sub-sites for storage thereat
(b) upon component or process failure at a said sub-site to which a user is logged in, connecting the logged in user to another said sub-site and complying with the user request thereat without requiring the user to login at the other said sub-site, details of the user being obtained from the details stored at the other said sub-site.
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patent: 5596720 (1997-01-01), Hamada
patent: 5778367 (1998-07-01), Wesinger, Jr. et al.
patent: 5864676 (1999-01-01), Beer et al.
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patent: 5945989 (1999-08-01), Freishtat et al.
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patent: 0 359 471 (1990-03-01), None
Breene John
International Computers Limited
Lee Mann Smith McWilliams Sweeney & Ohlson
Lewis Cheryl
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