Irrespective of the chosen project management method and governance, several activities need to be incorporated during the development phase to ensure that the phase results in a working release. Agreement on and active management of the various areas is crucial to deliver the platform.
During the previous phases, the decision has been made on what stack to build and how to build. Whether an existing suite is adapted or a new solution will be build from scratch, focus on the following topics is key to ensure predictable delivery, avoidance of pittfalls and seamless operation, including upgrades.
If an outside party is contracted for the development of the platform or parts, it is wise to discuss these topics and set KPI's. Open discussion and joint resolution of issues will help a successful joint delivery.