D2.3 Reference Architecture and Integration of AI4Gov Platform V1 introduces the first iteration of AI4Gov platform’s reference architecture and its integration approach. Thus, the purpose of this document is two-fold. At first, it provides an initial list of measurable and specific system requirements that will drive the design of the architecture of the AI4Gov platform and will be used as the basis for the implementation of the relevant functionalities that will be offered by the various software components of the platform. Secondly, it also seeks to provide an initial architecture that will drive the interactions among the different software artefacts developed by the AI4Gov partners. The latter is also a basis for the component names and offers a preliminary analysis of the possible deployments that will follow during the lifetime of the project.