Migration plays an important role in the legacy applications where, the application will be built with an old technology and moves to a new technology (e.g.: .NET: Winforms to WPF) . Here we are discussing about windows to windows and web to web. Automation testing at this stage will be cumbersome as the framework built will be collapsed and some organization will even scrap the entire automation project. But practically, it is very much possible to migrate the existing test automation project through careful handling of the object repository and using advanced methodology within scheduled time cost effectively and sticking much on to reliability and increased efficacy.
Migrating from Legacy system to a New system or from the existing tool to a new tool, Migration is always considered as high risk for IT industry, if not co-ordinated properly fails to deliver on the business expectations, as most of the migration projects run over estimated time and budget.