Patent ID: 8005788
Filing Date: 2011-08-23
Classification: G06F

Abstract:
1. A method of migrating a legacy system to a new system, the method comprising: creating a shadow core component in the new system, wherein the shadow core component is a read-only shadow of a legacy core component in the legacy system, wherein operation of the shadow core component in the new system is mastered by operation of the legacy core component in the legacy system, wherein the legacy core component has no knowledge of the shadow core component in the new system; synchronizing the shadow core component in the new system in response to a change made to the legacy core component in the legacy system; operating at least one new component in the new system using the shadow core component in the new system; creating a set of traceability links between a set of artifacts of the shadow core component in the new system and a set of artifacts of the legacy core component in the legacy system; detecting the change made to the legacy core component in the legacy system using the set of traceability links; and initiating the synchronizing in response to the detecting, wherein the synchronizing uses the set of traceability links.