Global design

A service therefore consists of an activity, or a series of activities, of a more or less intangible nature, which take place in an exchange between a supplier and a customer, in which the object of the transaction is an intangible asset.

Data sharing, Inter public administration notification, inter public administration composition

So each application server offers service interfaces, however it is still significant to distinguish whether the service interface is offered to interoperate within the domain..., towards other administrations or other subjects with whom a relationship of trust is established ... or externally....

The European Interoperability Framework (EIF) provides guidance to European public administrations on how to operate initiatives related to the issue of interoperability;

We choose to adopt three general principles. Here’s a shortcut to remember: RESTful, Hypermedia, Fine-grained

This Design Guide explains how to apply REST principles to API designs independent of programming language, operating system, or network protocol. It is NOT a guide solely to creating REST APIs.

The Design Guide suggests taking the following steps when designing resource- oriented APIs