APIs had been used to point at the data held in the legacy system so that chunks of its functionality could be cut away and gradually replaced. To start this work, Hackney needed to know what would replace the legacy system. Therefore, we set about making a range of recommendations for data infrastructure.
These included how to use open source databases, a strategy for data migration and a cost comparison between AWS and Azure. We also built a prototype to demonstrate the candidate architecture, which provided examples of modelling housing data, open source databases and REST APIs, so as to demonstrate how the data migration might progress.