The deliverable D6.3 presents the assessment related to the scalability, the performance and to the technology convergence in the context of the three pilots implemented by the AD4GD project. The reader of this document should be familiar with the architecture of the project described in other deliverables such as D5.2 and D6.2. This document does not include any schema or diagram of the AD4GD architecture. Please refer to other deliverables for diagrams of the AD4GD or pilot architectures.