Lookup Pattern
Lookup Pattern D2.1:
The lookup pattern is considered for a specific purpose; Its main characteristic is online and near real-time (NRT) use of information. The information is simple, attributes based. This is only applicable in cases where the exchange has a legal basis and can be executed without explicit User consent.
When the required information is not available right away, the process requiring the information stops and needs to be executed again from the start (as soon as the required information is available again).
This pattern requires synchronous communication, i.e. it must be “light weight”. This pattern ties DP and DC closely together: the DC cannot provide its service in case the DP is not available means that DC and DP usually know each other up front and the communication relationship is set up to cover a large number of repetitive interactions over time.
Important document
ISA2 Action ‘Innovative Public Services’: Piloting a REST API extension of CEF eDelivery, 30/10/2020 v1.1
Used by the following use cases
Application collaborations
TBD