PostFinance is converting its existing master data management system PEDAS (data of people, contracts, customer bases, rights and addresses) to a new, modern technology stack (Kubernetes, Spring-Boot, etc.). The reason for this is that todays system is technologically outdated and based on a proprietary framework. With the new development of the application the data model is also redesigned. Accordingly, data migration from the existing to the new target system must be carried out.