Will the NEII adopt a federated or centralised approach?

The NEII can support both federated and centralised approaches. The approach will depend on the nature of the data, the use-case or a partner's ability to establish an NEII node itself. It will be federated where possible, but centralised where necessary. For example because a database of environmental observations such as a time series of rainfall records for the continent at one hour intervals is relatively large, it might make sense to centralise this where network capacity or computational capability is greater.