In earlier posted we have explained how complete account aggregation (across all transport modes, private and public) is not possible, especially in a fragmented and deregulated environment. And how federated account integrations compliment the an aggregated Mobility-as-a-Service model. This can be explained further by turning the typical MaaS scheme diagram on its head and placing the “Central MaaS aggregator platform” at the bottom and placing the different transport providers on top.
This then shows how each of the accounts within the MaaS scheme can still integrate between themselves as well as with a central platform.
However the adoption of a common account interoperability standard would also mean that accounts outside of the MaaS scheme could be integrated too.