The document discusses DSpace 7's new configurable entities feature. It describes an entities working group that defined requirements and a roadmap for implementing configurable entities. Key points include: - Items can now be typed and relations between types can be configured - Existing item functionality like submission forms, searching, and importing can support different entity types - A journal use case was implemented to demonstrate entities - "Virtual metadata" allows mapping metadata between related items to avoid duplication - Item pages can display different configurations for each entity type and their relations

1. Droogmans Lieven
Atmire
June 12th, 2019
DSpace 7:
Configurable Entities

2. Entities working group
wiki.duraspace.org/display/DSPACE/
DSpace+Entities+Working+Group

3. Entities working group
Oct 2017 - Mar 2018
• Objectives
• Create awareness on the need to manage entities
and their relations
• Propose a solution to enable DSpace to support,
manage and relate entities
• Specify the global architecture and requirements
needed to implement the solution in DSpace
• Propose a roadmap to implement the proposed
solution.
https://wiki.duraspace.org/display/DSPACE/DSpace+Entities+Working+Group

4. Entities working group
• Design principles:
• Avoid hard-coding a particular object model
• Implementation of data model is configurable
• Start from the DSpace Item object
• Items can be typed
• Relations between typed item can be defined
https://wiki.duraspace.org/display/DSPACE/DSpace+Entities+Working+Group

5. Reuse current functionality
• Item as a more generic object
• Features that Dspace offers for items can be
reused with minor modifications:
• Submission forms per entity
• Searching for enties
• OAI-PMH
• Batch import
• …

7. Bitstream
Item metadata

8. https://wiki.duraspace.org/display/DSPACE/DSpace+7+Entities+Working+Group
DSpace 7 Entities working group
• Started Sep 2018
• Deliverables
• Assess the early prototype of Configurable
Entities.
• Define an implementation roadmap for DSpace 7
Configurable Entities
• Implement Configurable Entities per defined
roadmap
• Draft a post-DSpace 7 roadmap

9. Data model configuration
Defining Item types and Relations

10. Data Model configuration
• Example:
PersonPublication
author of publication
publication authored by

11. Data Model configuration
• Configuration in XML
<relationships>
<type>
<leftType>Publication</leftType>
<rightType>Person</rightType>
<leftLabel>isAuthorOfPublication</leftLabel>
<rightLabel>isPublicationOfAuthor</rightLabel>
<leftCardinality>
<min>0</min>
</leftCardinality>
<rightCardinality>
<min>0</min>
</rightCardinality>
</type>
</relationships>

12. Journal use case
Implemented in DSpace 7

14. Publication
Issue Issue Issue
Publication Publication Publication Publication Publication
Journal
Volume Volume
Issue

16. Journal item metadata

17. Related items: 2 journal volumes

18. Search in all related publications

20. Journal Volume Item metadata

21. Related item: journal item

22. Related item: journal issues

24. Journal issue Item metadata

25. Journal volume

26. Journal issue publications

29. Journal issue

30. Virtual metadata
Mapping metadata between items

31. Virtual metadata

32. Virtual metadata
Journal
• journal
title
• publisher
• editor
• ISSN
• …

33. Virtual metadata
Journal
• journal
title
• publisher
• editor
• ISSN
• …
Volume
• volume
title
• journal
title
• ISSN
• …

34. Virtual metadata
Journal
• journal
title
• publisher
• editor
• ISSN
• …
Volume
• volume
title
• journal
title
• ISSN
• …
Issue
• issue
number
• issue date
• journal
title
• ISSN
• …

35. Virtual metadata
Journal
• journal
title
• publisher
• editor
• ISSN
• …
Volume
• volume
title
• journal
title
• ISSN
• …
Issue
• issue
number
• issue date
• journal
title
• ISSN
• …
Publication
• publication
title
• authors
• abstract
• journal title
• ISSN
• …

36. Virtual metadata
Journal
• journal
title
• publisher
• editor
• ISSN
• …
Volume
• volume
title
• journal
title
• ISSN
• …
Issue
• issue
number
• issue date
• journal
title
• ISSN
• …
Publication
• publication
title
• authors
• abstract
• journal title
• ISSN
• …

37. Virtual metadata
Journal
• journal
title
• publisher
• editor
• ISSN
• …
Volume
• volume
title
• journal
title
• ISSN
• …
Issue
• issue
number
• issue date
• journal
title
• ISSN
• …
Publication
• publication
title
• authors
• abstract
• journal title
• ISSN
• …

38. Virtual metadata
• No duplicated storage of metadata
• Populate with metadata of other related items
• Independent of how metadata is retrieved
• Can be easily configured
Journal → Volume
<util:map id="isJournalOfVolumeMap">
<entry key="journal.identifier.issn" value-ref="volumeJournal_issn"/>
<entry key="journal.title" value-ref="volumeJournal_title"/>
</util:map>

40. Journal issue Item metadata

41. Journal issue Item metadata
Virtual metadata from Journal item

44. Virtual metadata from Journal item

46. Virtual metadata from Journal volume

47. Item pages for entities
Display of an entity and related entities

48. Item pages for entities
• Different display for different entities
• Display relations on item page
• Use case: research objects

49. Item pages for entities
• Different display for different entities
• Display relations on item page
• Use case: research objects
Publication Person
Project Org Unit

50. Item pages for entities
• Different display for different entities
• Display relations on item page
• Use case: research objects
Publication Person
Project Org Unit

51. Item pages for entities
• Different display for different entities
• Display relations on item page
• Use case: research objects
Publication Person
Project Org Unit

54. Related items:
Projects and Org Units
displayed as list

56. Authors displayed in the
correct order including entities

58. Related items: displayed search component

60. Related items: displayed search component

61. Search

64. Item type
Item type

65. Item type
Item type facet
Item type

68. Item type
Item type facet
Item type filter

70. Scope set to collection with OrgUnits
Different filters specific to OrgUnit entity

71. Multiple data models
Data models can coexist in one repository

74. Research objects:
Project, Person & orgUnit

76. Journal issue

78. Data Package

79. Next steps
Entities working group

80. Next steps
In order of priority, as voted on in working group
✓Which metadata fields should be used for each Entity type
✓Submission integration (creating Entities)
• Submission integration (creating Relations)
• Additional data for relations (metadata or labels on relations)
• Author name variants
• Creating relations during batch import (via CSV) for new Entities
• Explicit permissions on Relations
• Deleting objects with Relations
• AIP Backup & Restore (of Entities)
• Dynamic display of Relations
• OpenAIRE v4 implementation using Entities
• ORCID integration for Person Entities

81. Metadata fields
Metadata schemas for entities

83. schema.org metadata standard for person and project entities

85. https://schema.org/Person

86. Submission forms
Submitting entities

88. Collection for Person Items

89. Person metadata

90. <form name="peopleStep">
<row>
<field>
<dc-schema>person</dc-schema>
<dc-element>familyName</dc-element>
<label>Last name</label>
<input-type>onebox</input-type>
<hint>Enter the last name of the person</hint>
</field>
</row>
<row>
<field>
<dc-schema>person</dc-schema>
<dc-element>givenName</dc-element>
<label>First name</label>
<input-type>onebox</input-type>
<hint>Enter the first name of the person</hint>
</field>
</row>
</form>
Submission form: Person

91. Thank you!
Lieven Droogmans
Atmire
lieven@atmire.com
www.atmire.com
Next working group meeting:
June 18th 5pm CEDT