DESCRIPTION: [Analysis of a target digital public solution] groups the following ABBs: [Interoperability Dimension] which is associated with the [EIRA Architecture Building Blocks] requirement. the [EIRA Architecture Building Blocks] composes the [EIRA View], which is associated with the [EIF Interoperability Level], aggregates the [EIRA Viewpoint] and is a specialization of the [Key Interoperability Enabler] and [Architecture Building Block] which in turn adds granularity to the [Detail - level Architecture Requirement]. The [Detail - level Architecture Requirement] is a specialist ion of the [Interoperability Requirement] which aggregates all the [Interoperability Aspects]. [Analysis of a target digital public solution] is influenced by [Architecture Principle] which is a specialization of the [EIF Principle] and aggregates the [European Library of Architecture Principle]. [Architecture Principle] influences also the [Solution design of a target digital public service / Documentation of an existing digital public service] which is composed by the [EIRA Solution Building Block] that realizes the [Interoperability Specification] and specializes the [Solution Building Block] that, in turn, is composed by the [Digital Solution] which realizes the [Interoperable Digital Solution]. The [Solution Building Block] realizes the [Solution Specification] that is a specialization of the [Interoperability Specification] which aggregates the [EIRA Library of Interoperability Specifications].