The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 23, 2011
Filed:
Jan. 28, 2008
Daniel D. J. Leroux, Kanata, CA;
Steven R. Shaw, Ottawa, CA;
Daniel D. J. Leroux, Kanata, CA;
Steven R. Shaw, Ottawa, CA;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system and method for legacy system component incremental migration from a legacy system to a new system comprises a read-only ghost or shadow in the new system. When changes are made in the legacy system, the changes are incrementally and automatically migrated to the new system allowing the legacy system and the new system to maintain availability during the migration. The concept of 'mastership' is used where a component exists in the 'New System', but is actually mastered in the “Legacy System”. By allowing a sub-component to exist as a read-only ghost or shadow in the new system, and still be mastered/edited in the legacy system, a one-way bridge is provided so that the two systems can interact. The synchronization of the legacy system component is managed so that the ghost component is automatically updated when changes are made to the legacy system component and there is little maintenance that the user needs to do to create the bridge between the two systems.