The Interoperable European Solution viewpoint models the most salient Architecture Building Blocks related to the modelling of interoperable solutions across europe. Public administrations must consider all the aspects reported within the viewpoint when creating solution that should consider all the aspects specific to interoperability. Narrative: [Interoperable Digital Solution] is composed by a [Shared Platform][Machine to Machine Interface] and [Human Interface]. [Machine to Machine Interface] and [Human Interface] are assigned to the [Digital Solution Component] relised by the [Digital Solution component] and associated with the [Shared Knowledge Base]. [Interoperable Digital Solution] is regulated by a [Shared Legal Framework] and associated with [Shared Governance Framework] which is also associated with [Shared Legal Framework] and [Shared Platform]. The [Shared Legal Framework] regulates also the [Shared Platform].