6.3.1 Relationship between the different components, in particular spatial data, metadata, registers, and network services

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6 INSPIRE
6.1 Background and Motivation

6.1.1 Spatial Data Infrastructures
6.1.2 Requirements for a European SDI
6.1.3 Existing foundation for a European SDI

6.2 Overview and Context

6.2.1 Background and history
6.2.2 The five components of the Directive
6.2.3 Implementation, status and schedule
6.2.4 Groups and responsibilities within INSPIRE
6.2.5 INSPIRE Implementing Rules and INSPIRE Guidance Documents
6.2.6 European and Global initiatives in the context of INSPIRE

6.3 Technical Architecture Overview

6.3.1 Relationship between the different components, in particular spatial data, metadata, registers, and network services
6.3.2 Terminology

6.4 Interoperabilty of spatial data sets / INSPIRE data specifications

6.4.1 Requirements of the INSPIRE Directive
6.4.2 Interoperability of spatial data
6.4.3 INSPIRE data scope
6.4.4 Modelling Framework
6.4.5 Generic Conceptual Model
6.4.6 ISO 19100 series of International Standards
6.4.7 Rules for application schemas and feature catalogues
6.4.8 Identifier Management
6.4.9 Object referencing modelling
6.4.10 Coordinate referencing
6.4.11 Multi-lingual text and cultural adaptability
6.4.12 Data quality
6.4.13 Metadata for evaluation and use
6.4.14 Multiple representations
6.4.15 Consistency between data
6.4.16 Portrayal model
6.4.17 Conformance
6.4.18 Generic Network Model
6.4.19 Gazetteers
6.4.20 Encoding and data formats
6.4.21 INSPIRE registers
6.4.22 Annex I data specifications
6.4.22.1 Coordinate reference systems
6.4.22.2 Geographical grid systems
6.4.22.3 Geographical names
6.4.22.4 Administrative units
6.4.22.5 Addresses
6.4.22.6 Cadastral parcels
6.4.22.7 Transport networks
6.4.22.8 Hydrography
6.4.22.9 Protected sites
6.4.23 Outlook to Annex II/III data specifications
6.4.24 Extensions by countries or communities

6.5 Network Services

6.5.1 Network Service Architecture
6.5.2 View Services
6.5.3 Discovery Services
6.5.4 Download Services
6.5.5 Transformation Services
6.5.6 Invoke spatial data service services

6.6 Metadata

6.6.1 Requirements of the INSPIRE Directive
6.6.2 INSPIRE Metadata scope
6.6.3 INSPIRE Metadata elements
6.6.4 Metadata guidelines
6.6.4.1 Implementation according to ISO 19000 series
6.6.4.2 Implementation according to Dublin Core
6.6.4 Relationship to INSPIRE Discovery Services

This is work-in-progress and is expected to change as a result of the further work on the implementation of INSPIRE.

The following figure provides a simplified overview of key elements in the technical architecture of INSPIRE. The technical components and their relationships are further described in the sections 6.4 Interoperabilty of spatial data sets / INSPIRE data specifications, 6.5 Network Services and 6.6 Metadata.





The core resource in the diagram is the actual content, i.e. the spatial data in spatial data sets . All other resources shown in the diagram, e.g. data set metadata, are only needed to find, access, interpret or use the spatial objects in the spatial data sets that form part of the infrastructure.

In INSPIRE all access to spatial data and metadata occurs via spatial data services. All services are described by service descriptions (service metadata), allowing humans and software applications to discover specific service instances in the infrastructure. In the first implementation of INSPIRE the service descriptions are probably not detailed enough to allow for an automatic binding to services based on the service metadata alone. A set of well-known, harmonised spatial data service types, prescribed by the INSPIRE Directive, are fully specified as network services.

Other spatial data services may be invoked from the infrastructure, too. The currently identified requirements for these services are that service descriptions according to the Implementing Rule on metadata are published as well as any additional requirement raised by the future Implementing Rule of the "invoke spatial services service" or the Implementing Rule for the interoperability and, where practicable, harmonisation of spatial services.

In order to support the requirements, it is expected that a taxonomy of the service types in the infrastructure will be maintained. Furthermore, it is expected that the service descriptions will eventually support the detailed description of the service capabilities and operations of each spatial data service.

The infrastructure will be built upon existing or emerging infrastructures in the member states and international organisations. In particular it has to be emphasised that changes to existing data capturing, updating and management processes within the member states and international organisations are in general not required by the implementation of INSPIRE. Instead, the INSPIRE Implementing Rules and associated technical guidance documents (the data specifications) aim at providing access to existing spatial data in a harmonised way.

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