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From the computational perspective, EUDAT offers services that can be used to instantiate various objects in the Reference Model. For example EUDAT’s Safe Replication facilities can implement various required services within the Model Overview#subsyssubsys_cur of an environmental RI:

•   CV Data Acquisition: EUDAT does not offer facilities for Model Overview#subsyssubsys_acq, relying on data already gathered by client RIs.
•   CV Data Curation: EUDAT can provide instances of any of the computational objects used for data curation (including CV Data Curation#data data store controller, CV Data Curation#data transfer service and CV Data Curation#catalogue catalogue service), either in place of or complementary to instances provided by an environmental RI – the extent to which EUDAT assumes the curation role for an infrastructure will vary from case-to-case.
•   CV Data Access: Data access to EUDAT curated data is brokered by EUDAT, whilst the RI would broker RI-curated data. In practice the RI broker would sit in front of the EUDAT broker, forwarding data requests that involve data delegated to EUDAT.
•   CV Data Processing: EUDAT do not offer data processing (beyond metadata annotation) as a core service; workflow enactment is being investigated as a future service however, which would allow a later version of the EUDAT platform to implement elements of a Model Overview#subsyssubsys_pro.
• Whilst certain aspects of EUDAT such as the Simple Store for researchers might be directly accessible as an independent  gateway service , in general EUDAT sits behind a client RI, its services hidden behind the RI’s native services from the perspective of the RI’s user community. It would be likely however that the ‘virtual laboratories’ by which community groups interact with an RI would be in some way augmented by EUDAT services; in particular, implementations of the CV Data Use#security security service would integrate the EUDAT AAI service to allow seamless integration of EUDAT-held datasets with locally-held RI datasets.
  
  

The most immediately apparent conclusion that can be drawn from cursory analysis of EUDAT services in the context of the Reference Model is that EUDAT can potentially implement the entire CV Data Curation of an environmental RI; however in practice, one would expect that an RI would retain a certain amount of data locally (particularly raw data that is expensive to transfer off-site), necessitating a more nuanced division of labour between the RI and EUDAT. In particular, EUDAT provides replication services, allowing the co-existence of RI and EUDAT data stores holding the same data, and EUDAT provides metadata (including global persistent identifier) services, allowing EUDAT to provide any  CV Data Curation#catalogue catalogue service (probably complementary to catalogue services maintained by an environmental RI itself). The delegation of services will be a product of negotiation between the environmental RI and the EUDAT project (some degree of automation may be possible, but likely sufficient for only smaller projects).

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