The document discusses the activities and progress of Work Package 2 (WP2) of the DM2E project, co-funded by the European Union, outlining a timetable from April to July 2013 for various tasks including testing external components and developing a stable DM2E data model version 1.0. It addresses issues in modeling, integration of new classes, and evaluations of model interpretations across three rounds, detailing the adjustments required based on feedback. Additionally, it highlights the infrastructure for linked data publication and plans for future developments including user authentication services and further integration with scholarly environments.

1. co-funded by the European Union
Work Package 2
All WP Meeting
11th June 2013, London
Kai Eckert, Evelyn Dröge

2. Timetable
16.04.2013 DM2E Review: Work Package 2 2
Q1
•2.1, 2.3: Test of external components (MINT, Silk, jMet2Ont, D2R), Data Survey
•2.2: Basic entity structure of the model
Q2
•2.1, 2.4, 2.5: Prototype of Infrastructure, Workflows, UI
•2.2: Mapping workshops, further work on the DM2E data model
Q3
•2.1: 2.4, 2.5: Softwaredesign of Intermediate Architecture, Foundational work
•2.2: Combination of the DM2E model with Linked Data principles, Integration with Architecture
Q4
•2.1, 2.4, 2.5: Provenance Model for DM2E Infrastructure, Web service development
•2.2: DM2E Data Model 1.0, first stable and operational version.
Q5
•Implementation of the DM2E Data Model in Mint.
•Development of the Intermediate Version of the Infrastructure: due on July 15th.

3. DM2E Data Model 1.0 published
Online Documentation:
onto.dm2e.eu/dm2e

4. Further Documentation
Current Version: DM2E Model v1.0
• Documentation: http://dm2e.eu/document/
 Model description
 OWL File
• New changes in the model are shown in a next model
version 1.1 on Redmine: https://dm2e.hu-
berlin.de/redmine/projects/wp2/wiki/DM2E

5. Modelling Issues
• Namespaces:
– dm2e: <http://onto.dm2e.eu/schemas/dm2e/1.0/> .
– dm2edata: <http://data.dm2e.eu/data/> .
• How to reuse external vocabularies?
– Specification: DM2E scope notes and original description of terms
from other vocabularies
• Modelling analogue to EDM (OAI-ORE)
– Extensive use of properties instead of classes,
e.g., 52 new properties for edm:ProvidedCHO
– If possible: direct reuse of external vocabularies
• Additional external vocabularies
– Korbo (WP3), Bibliographic Ontology, FaBiO, Publishing Roles
Ontology, VIVO Ontology, VoID
16.04.2013 DM2E Review: Work Package 2 5

6. DM2E Model: Class Extension
• New subclasses
edm:NonInfor
mationResource
edm:Place edm:PhysicalThing
bibo:Book
dm2e:Manuscript
fabio:Page
…
edm:Event skos:Concept
fabio:Chapter
dm2e:Work
…
edm:TimeSpan edm:Agent
foaf:Organization
foaf:Person
Example: Integration of new classes
16.04.2013 DM2E Review: Work Package 2 6

7. DM2E v1.0 in Mint
Different DM2E model interpretations in Mint
Evaluation of those in three evaluation rounds

8. Evaluation of the DM2E model interpretations
• 1st Evaluation – UBER
– DM2E v1.0
- EDM Schema Approach
- Resources are not related
- Ranges are not taken into account
 Schema is not further used
– DM2E v1.0 Fixed Ranges
+ DM2E Schema Approach
+ Resources are related
+ Ranges are considered
 Basis for the 2nd evaluation

9. Evaluation of the DM2E model interpretations
• 2nd Evaluation – UBER/ONB
– DM2E v1.0 Fixed Ranges
• Schema has to be updated
– DM2E v1.0 Fixed Ranges Short A
• Loss of class specific properties
• Excluded for further development
– DM2E v1.0 Fixed Ranges Short B
• Schema has to be updated
– DM2E v1.0 Fixed Ranges Short C
• Allows inconsistent mappings
• Excluded for further development

10. Evaluation of the DM2E model interpretations
• 3nd Evaluation – UBER/ONB/NTUA
– DM2E v1.0 Fixed Ranges
– DM2E v1.0 Fixed Ranges Short B
We have to choose one of them now!

11. Next Steps of UBER in WP2
• Provide mapping help
• Analyse your mappings
– Which resources are not used?
– Are any resources missing?
• Revise the model
– Smaller logical or typographical errors in the model can
immediately be corrected
– Other adaptions will be made over a longer development cycle
(meaning a period of several months)
Former mappings will remain valid!
We need your feedback!

12. DM2E Model: Metalevel
• Levels of Abstraction in DM2E
DM2E Review: Work Package 2 1216.04.2013
Class Uplink Metadata
edm:ProvidedCHO ore:isAggregatedBy About the content
ore:Aggregation ore:isDescribedBy About the provided metadata,
providers perspective, record level
ore:ResourceMap
dm2e:DataResource
foaf:Document
void:inDataset
void:Dataset
(Named Graph)
About the RDF data, DM2E
perspective
Metalevel, managed
by DM2E
Infrastructure
Core data, created
by provider
mappings

13. DM2E Architecture
DM2E Review: Work Package 2 1316.04.2013
WP 1
WP 2
WP 3

14. OmNom Ingestion Platform
DM2E Review: Work Package 2 1416.04.2013

15. WP2 Infrastructure
DM2E Review: Work Package 2 1516.04.2013

16. The Result: Linked Data
DM2E All WP Meeting: Work Package 2 1611.06.2013

17. Workflow: Orchestration of Services
DM2E All WP Meeting: Work Package 2 1711.06.2013

18. Workflows
• OmNom: Distributed infrastructure to ingest and
create data in DM2E.
• Workflow = Dataflow
• Data is created and transformed by web services
• Components:
– Input services (File services, D2R instances, OAI-PMH, ...)
– Transformation services (Generic XSLT, MINT, R2R)
– Ingestion services (Output of an ingestion pipeline)
– Contextualization services (Silk)
– Configuration Services (MINT and Silk act as editors)
DM2E Review: Work Package 2 1816.04.2013

19. The Linked Data Gap
• Linked Data publication is often one-way.
• Linked Data as an export from the „real“ data.
• This leads to a gap:
YOUR data becomes separated from the Linked Data.
DM2E Review: Work Package 2 1916.04.2013

20. Bridge the gap from YOUR data to Linked Data
DM2E Review: Work Package 2 2016.04.2013
Image by courtesy of Kiril Havezov, sxc.hu (walker_M)

21. The DM2E Data Bridge
DM2E Review: Work Package 2 2116.04.2013
This is YOUR data.
This is the void:Dataset
in DM2E.

22. Some more links are actually available...
DM2E All WP Meeting: Work Package 2 2211.06.2013

23. Personalization and Security

24. Authentication Service
● Centralized Authentication and Authorization Service
● Centralized Storage of User Accounts
● User Account Schema based on MINT Model.
● Single Sign-On
● Standard Based: JAAS, Web Services/SOAP
● "Remember Me" support
● Password reset support

25. Contextualization
• Silk: Silk Link Discovery Framework (UMA)
• Definition of linkage rules to create links
between Linked Data
resources.
DM2E Review: Work Package 2 2516.04.2013

26. Next steps
• Intermediate Version (July 2013)
– Complete transformation and ingestion infrastructure
– Integrated contextualization
– Connection with scholarly environment (WP3)
DM2E Review: Work Package 2 2616.04.2013

27. Thank you.
DM2E Review: Work Package 2 2716.04.2013