Huawei Canada Huawei Canada Futurewei Technologies Performance-Oriented Digital Twins (PODTs) provide "what-if" analysis - predictions of performance or, perhaps, of other behaviours in hypothetical situations of network, services, traffic, etc. Key functional and design aspects of PODTs in support of multiple, concurrently-operating use case Management Plane (MP) applications are discussed. Data and model management in concurrent session handling, inter-working with variable composition (from data and functional model perspectives) networks, performance and scalability are considered.