Architecture / Design of integration flow

Hi, I am Head of Data Governance Practice and Enterprise Architect for an ESN. I am looking to enforce my team of solution architects and designers which work for a large account in Paris. The mission objective is to perform design of data integration flows between the applications, based on business needs and HLD documents produced by customer representatives. Describe this design in the Low Level Design documents and when support team during implementation, testing, and deployment project phases.