Research And Implementation Of Legacy System Migration Based On Sca

SCA (Service Component Architecture) is the main solution for Enterprise Application Integration. A large number of enterprise applications will be migrated to SCA. However, the existing migrations from legacy systems to the SCA platform need to rewrite codes by SCA norms, which causes a great deal of duplication works.As the development of SOA and the advantages of SCA, this paper proposes a wrapping method to migrate legacy systems to SCA components, and designs a migration system based on this method. This system uses a hierarchical structure to achieve the function migration and concept migration of a legacy system. The function migration refers to an automation method to realize the transformation from legacy systems to the Python Extension modules. All the solutions are verified in the project, and the SCA components will be able to fully separate the business logic from the underlying infrastructure and service quality from the transfer protocol.