Migrating Legacy Systems towards Object-Oriented Platforms

We present an approach to migrate legacy systems to object-oriented platforms. The process consists of six sequential phases and encompasses reverse engineering and re-engineering activities. The aim of the reverse engineering phases is to decompose programs into components implementing the user interface management and components implementing application domain objects. The identification of objects is centered around persistent data store and exploits object-oriented design metrics. Wrapping techniques are the core of the re-engineering activities. They make new systems able to exploit existing resources, thus allowing an incremental and selective translation of the identified objects