System and method for legacy system component incremental migration
US8005788B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2008 |
| Grant date | Aug 23, 2011 |
| Priority date | — |
| Expiry date | Jan 6, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F8/656
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.