Date post: | 04-Jun-2015 |
Category: |
Technology |
Upload: | init-ag-fuer-digitale-kommunikation |
View: | 860 times |
Download: | 1 times |
SEMIC.EU: Towards Linked Government Metadata
Vassilios PeristerasEC, DG DIGIT, ISA Unit
2
1. SEMIC.EU overview
2. Core Concepts and Core Vocabularies
3. Linked Government Metadata
3
1SEMIC.EU Overview
4
SEMIC.EU – Scope
SEMIC.EU is a platform (www.semic.eu)and a set of services around this platform
to promote semantic interoperability in EU Member States
SEMIC.EU was initiated in 2007 and it has been included as one of the “larger” actions in the new ISA Programme (2010-2015)
5
SEMIC.EU – Scope
InteroperabilityAssets
12 April 2023
Communitybuilding
Taxonomies
Code listsMethods and
Concepts
Coaching &
Community building
Governance and Clearing Process
Communication Management
SEMIC.EU Platform Administration
Coordination and Project Management
Stakeholder Involvement
Guidelines and Studies
Yearly Conference
SEMIC.EU Road Show
Platform Extension
6
Achievements of SEMIC.EU
> 1.200 Users> 1.200 Users> 80 Projects> 80 Projects
CommunitiesCommunities>500 Assets>500 Assets
Visible in Europe
Visible in Europe
Partner for eGovernment
Partner for eGovernment
Quality CentreSemantic
interoperability
Quality CentreSemantic
interoperabilityKnowledge base
for semanticsKnowledge base
for semantics
Sustainable Service for eGovernment
7
SEMIC.EU next steps:
To enable access to national repositories of semantic assets from a single point (federation)
To identify a small set of Core Concepts (e.g. 20-30) to be developed through the harmonization of existing assets and with the involvement of MSs
Create an EU Semantic Interoperability Community of Practice (EU/SICoP) where MSs representatives discuss issues and share experiences in semantic interoperability
SEMIC.EU future directions (2011-2015)
8
2SEMIC.EU Core Concepts and Core Vocabularies
9
Core Concept – Vision
Semantic definitions should be commonly agreed
on fundamental, highly reusable concepts
10
Core Concept – Challenges
Is it possible to define an entity (concept) in a way that remains relevant in different contexts?
Is it possible for 27 MSs to agree on common semantics?
11
Core Concept - Definition
A Core Concept is a simplified data model that captures the minimal, global, generic, country and
domain neutral characteristics/properties of an entity.
A Core Concept can be represented as Core Vocabulary using various formalisms (e.g. XML, RDF)
12
Core Concept - Definition
• Definitions could first be agreed on fundamental concepts (Core), where diverged and/or conflicting views are less intense.
• A Core Concept/Vocabulary
Is highly reusable: the specification is simple and captures basic and generic characteristics of an information entity, regardless of the context this entity is used
Is extensible: domain specific specializations can be drafted on top of the core representation.
13
Core Concept – The Core Person Example
Core Vocabulary• Identification of a person in
eGovernment context• Based on the evaluation of 4
assets (Person models of Austria, Denmark, France and Germany)
14
Core Concept – Core Person Instantiations
Core Patient Core Voter Core Employee Core Student
15
CorePerson – Initial Implementations
16
Implementations and mappings
1515
17
Core Concepts - Principles of development
1. Share ownership and involve the MSs
2. Identify 20-30 top reusable conceptse.g. Person, Vehicle, Building, Company, Project
3. Reuse existing vocabularies/definitions
4. Use a minimalistic approach Minimize the number of attributes, keep schemas simple.
5. Draft semantic documentation… to guarantee the proper reuse of a schema.
18
3SEMIC.EU Linked Government Metadata
19
Linked eGovernment Metadata
Core Concepts as Linked eGovernment Metadata
a) provide the core concepts as metadata schemas in open formats (e.g. xml, csv) including rdfs
b) link and reuse terms from existing rdf vocabularies
c) provide URIs for the new terms introduced
Core Concepts as Linked eGovernment Metadata
a) provide the core concepts as metadata schemas in open formats (e.g. xml, csv) including rdfs
b) link and reuse terms from existing rdf vocabularies
c) provide URIs for the new terms introduced
20
Linked eGovernment Metadata Repository
XML
JSONRDF
UML
CSV
Linked Government Metadata Repository
Linked Government Metadata Repository
21
Draft Time Plan
Q2/2011 Q3/2011 Q4/2011 Q1/2012
Identification of Core Concepts
Core Concepts Development and Review
Vocabularies development
Vocabulary Platform Implementation
Q2/2012
Vassilios PeristerasEC, DG DIGIT, ISA Unit
SEMIC.EU: Towards Linked Government Metadata