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SOLID THE HAGUE
BART ROORDA (VIERDE VRIJDAG!)
PIETER VAN EVERDINGEN (PLDN)
JUNE 28TH, 2019
#linkeddatanl #webwewant
Solid The Hague – Program
Session topics:
1. Weaving the web vision
2. PLDN & Linked Data intro
3. Solid intro + POD & apps demo
4. Solid use cases & topics
5. Drinks & food
PLDN INTRO
Platform Linked Data Netherlands (PLDN)
Our open innovation community in a nutshell
Leads/participants
• Events
• Working groups
• Publications
Sponsors
• Gold sponsor
• Silver sponsor
• Bronze sponsor
Steering committee
Contact
Pieter van Everdingen/
Hans van Bragt
platformlinkeddatanl@gmail.com
Website
www.platformlinkeddata.nl
LinkedIn-group LOD Nederland
www.linkedin.com/groups/466278
Twitter @linkeddatanl
hashtag #linkeddatanl
Newsletter
www.pldn.nl/wiki/Nieuwsbrieven
PLDN website
www.platformlinkeddata.nl
PLDN publications
http://www.pilod.nl/wiki/Resultaten
PLDN sponsors
Contact us if you would like to sponsor the PLDN-activities
(see our sponsorship packages-page for the sponsoring options)
LINKED DATA INTRO
Why linked data…, it starts with a desire
Most persons have the desire to:
• Connect
• Collaborate
• Share
digitally &
socially
Current practices…, many barriers
But often suffer in real-life from:
• Organizational
• Technical
• Legal
Which makes sharing information
and smart collaboration difficult
barriers !!
Solution A…, traditional scenario’s
Drawbacks:
• Wide variety of data formats
• Many transfer protocols
• Rigid
• Expensive
• Many uncontrolled data copies
Solution B…, linked data scenario’s
Benefits:
• One data format (RDF)
• One protocol (HTTP)
• More flexible
• More cost-efficient
• No unnecessary data copies
Linked Data: A way for publishing data on the web (with focus upon open web standards and
re-usability). Data is stored as triples (based upon the RDF standard) and is query-able via the
SPARQL standard, which supports federated queries upon different data sources in one query
Linked Data…, web of data
1. RDF (Resource Description Framework)
▪ Triples (Subject-Predicate-Object)
▪ URI’s (Unique Resource Identifiers)
▪ Vocabulairies (re-usable glossaries & models)
2. SPARQL (Simple Protocol And RDF Query Language)
Linked Data…, basic elements
Data model
Query Language
Unique internet address of a data-element!!
Assertions about data-elements in sentences
Re-usable modeling elements
Linked Data…, W3C standards & API’s vision
Modular
Ontology
Design
Context 1 Context 2, 3, 4, etc.
Many OpenAPI lookup services for
internal and external reference data
External
Referencedata
Taxonomies/Thesauri (SKOS)
Data models (RDFS, OWL)
Internal
Referencedata
Data instances
(RDF-serialization)
OpenAPI
OpenAPI
OpenAPI
OpenAPI
SHACL SHACL
Make data as e.g. CSV, JSON &
JSON-LD available in 1 OpenAPI
Constraints (SHACL)
Validation Reports (SHACL)
Data models (UML)
Data (e.g. CSV, JSON)
Actual
Data
OpenAPI’s voor data
that is often used
(for web developers)
OpenAPI
OpenAPI
SPARQL
OpenAPI
OpenAPI
SPARQL for
Linked Data experts
Source: W3C – RDF 1.1 Primer
Linked Data…, triples in knowledge graps
Linked Data…, ‘data clouds’
Paradigm shift
Chains, networks, clouds
of Linked data, which are
all knowledge graphs
(don’t think in terms of tables
and columns anymore)
Every data element on the
web is accessible and
connectable via a URI
Linked Data…, data harmonization !!
Source: Trivadis (Semantic Data @ Pharma)
Roadmap…, linked data potential !
Future outlook:
• Global access to knowledge
• Linked data as the ‘glue’
• One unifying data format
• Bridging the barriers across
heterogeneous data environments
• Facilitating smart collaboration
SOLID INTRO
Negative trend…, undesirable data lock-in
of personal data in social media platforms
… ‘walled gardens’, no re-use, you have to move data and/or persons between platforms !!
Solid…, using data from different sources
Adapted from: https://rubenverborgh.github.io/PLDN-Solid-Kick-Off-2019/#
Solid…, decouple data from apps!!!
Adapted from: https://rubenverborgh.github.io/PLDN-Solid-Kick-Off-2019/#
Solid…, application architecture
Adapted from: https://rubenverborgh.github.io/PLDN-Solid-Kick-Off-2019/#
Solid examples…, game app
App GUI
App engine
App data
Client-side scripts
(Javascript*)
Server-side scripts
(Javascript*)
Data sources
(Turtle)
MyPOD
(app user 1)
YourPOD
(app user 2)
- HTML (structure)
- CCS (presentation)
- Javascript* (behavior)
Solid auth-client + RDF & SPARQL tooling (e.g. LDFlex)
React/Vue/Angular components* (optional)
Solid App (web/native/mobile/hybrid/…)
Possible app features (e.g. chess game):
- Login to game app with your WebID
- Grant access to your POD (checkboxes)
- Invite another player (with a POD)
- Other player accepts the invitation
- Play a game (use app & PODS data) &
- Publish game data in PODS (in parallel)
+
*: Solid is technology agnostic, you can use any web technology with Solid components
Solid examples…, my PODS (so far)
For different contexts/purposes:
• https://pietervaneverdingen.inrupt.net/profile/card#me
(personal data I would like to share with e.g. friends)
• https://openinc.solid.community/profile/card#me
(business data I would like to share with e.g. advisors)
• https://pldn.solid.community/profile/card#me
(community data I would like to share with community members)
Solid examples…, my apps (so far)
First versions of apps I’ve used:
• https://markbook.org
(a bookmark app)
• https://vincenttunru.gitlab.io/poddit/
(another bookmark app)
• https://pixolid.netlify.com
(a photo management app)
Solid examples, a short demo
DEMO: GET YOUR SOLID POD
Comments for this screen
Click on one of the Get a
(Solid) POD buttons on this
screen
Comments for this screen
Choose which POD provider
is allowed to host your POD
(but you can also install a
Solid server yourself to host
your own PODS and to be in
control yourself totally)
Comments for this screen
Click on the Register button
to create a POD account
Comments for this screen
Create a unique POD name
that will serve as your WebID
and enter a password and an
e-mail address
DEMO: SOLID POD EXAMPLE
Comments for this screen
This the home page for one
of my PODS (and you are
looking at the current version
of the GUI that is going to
change in the near future)
Comments for this screen
When you click the Profile
link on the home page of my
POD then see the (linked)
data for my Profile`with e.g.
my profile characteristics and
the apps that I trust
Comments for this screen
When you click the Edit your
Profile icon in the menu then
you navigate to a Profile data
entry form where you can
drag a picture onto your
profile from your hard drive
and type in more profile
characteristics in the data
entry fields
Comments for this screen
You can also drag http links
to screen sections with a
bull’s eye sign, e.g. for web
sites and persons (with a
known WebID) you want to
connect to your profile
Comments for this screen
When you start with a new
POD then your Public Folder
will be empty. The Turtle (ttl)
files are created by the Solid
apps that I use, like the
chess app and two bookmark
apps, Poddit and Mark Book!
There is no fixed structure
for a POD.
Comments for this screen
Click on the green plus sign
to start creating a folder, a
contact list, a meeting, a
chat, a document, a source
or a link, for this demo we
will create a folder
Comments for this screen
Type the demo folder name
in the data entry field and
click on the green check sign
to create the demo folder
Comments for this screen
And refresh the Pubic Folder
page to see the demo folder
Comments for this screen
To start deleting the demo
folder click the under the
hood icon
Comments for this screen
Click then on the red no
entry sign
Comments for this screen
Click then on the Delete
folder button
Comments for this screen
And click the Ok button to
delete the demo folder from
your POD and refresh the
Public Folder page to see the
result
Created by Mark Book!
Created by Poddit
Comments for this screen
In the bookmarks.ttl file you
see 3 bookmarks that were
created with 2 different
bookmark apps: Poddit and
Mark Book!
Compatible data shapes !
Comments for this screen
Here you see a first example
of layered compatibility for
the bookmark data shapes
that were created by two
interoperable Solid bookmark
apps
DEMO: SOLID APPS EXAMPLES
Comments for this screen
You first have to authenticate
yourself with your WebID
before you can start using a
Solid app
Comments for this screen
And you have to grant access
to your POD before an app
can use your POD data and
can add data to your POD
Comments for this screen
Then you see that Mark Book
is aware of all the bookmarks
that were created by Poddit
and Mark Book!
Comments for this screen
And you see that Poddit is
also aware of all the
bookmarks that I have
created with two
interoperable apps
Comments for this screen
In the photo management
app Pixolid, I’ve upload one
picture (from the Solid
Utrecht session), which I’ve
made public (you can also
share pictures with friends
that are known in your POD)
Comments for this screen
I’ve liked it and I’ve created
one sample comment
Comments for this screen
And in Pixolid, I can also see
the pictures that friends have
shared with me
Comments for this screen
And on the Profile page in my
POD you see a reference to
the Pixolid folder
Comments for this screen
And when you click on the
Pixolid link the you see the
data in the Pixolid folder (the
images, comments and likes)
Comments for this screen
The picture of the Solid
Utrecht session
Comments for this screen
The comment that I’ve added
to the picture, etc.
END OF DEMO
Solid…, create ones, re-use many times!!
Adapted from: https://rubenverborgh.github.io/PLDN-Solid-Kick-Off-2019/#
Solid…, open up app and data markets
Adapted from: https://rubenverborgh.github.io/PLDN-Solid-Kick-Off-2019/#
Solid…, how to get more involved?
https://forum.solidproject.org
Solid…, how to get even more involved?
https://gitter.im/solid
Solid…, how to get deeply involved?
https://github.com/solid/
Solid…, how to keep the overview?
https://github.com/solid/information
Solid…, where to find apps?
https://github.com/solid/solid-apps
Solid…, how to start developing apps?
https://solid.inrupt.com/docs/getting-started
Solid…, how can we make it more fun
(and more easy) for developers?
https://ruben.verborgh.org/blog/2018/12/28/designing-a-linked-data-developer-experience/
1. Shapes – define the fields and structure that client and apps can
expect to find in a view over a piece of data
2. Forms – are part of a user interface that allows people to easily
view, edit, and create data in a given shape
3. Footprints – explain to an app where to store new data
corresponding to a shape, and how it should be wired up within
existing data
Solid…, what’s next?
Source: https://ruben.verborgh.org/blog/2019/06/17/shaping-linked-data-apps/
Shape aware GUI’s & queries
For layered compatibility
Gives clarity about where and how to store new data
Solid…, where can you find events?
https://github.com/solid/information/blob/master/solid-events.md
SOLID ACTIVITIES & USE CASES? (DISCUSSION)
Solid…, activities within our scope
2018 2020Q4
2018
Q1
2019
Q2 Q3 Q4
Solid Utrecht
Dec 11
PLDN event
Jan 31
PLDN-Solid Kick-Off
Apr 9
MU 4
Jul 7
Use case 1Phase I
Solid topic 1
Use case 1
Use case 2
Solid topic 1
Use case 2
Use case 3 Use case 3
Solid event
Dec 10-12
(in Paris)
MU 3
Jun 11
MU 2
May 14
MU 5
Oct 8
Solid The Hague
Jun 28
Solid The Hague
+
Solid Amsterdam
Sep/Oct?
HackaLOD
Nov 29-30
ECP
Jaarcongres
Nov 14
Solid use cases?
Solid use cases? Solid Utrecht, Apr 9 (1/3)
• MyPictures app (Ferry, …)
• Reference data administration/lookup services app (Joep, Hayo, Wessel, …)
• Fully open MyPublications edit/review/publish app (Gerard, Pieter, Erwin, …)
• Open dictionaries & Dutch laws annotation and editing app (Hayo, Sander, …)
• Sharing economy services using Solid PODS/apps (Jeroen, …)
• New PLDN wiki/website with expert profiles (Pieter, PLDN-community effort?)
• Local PODS provider business opportunity (Hapee, …)
• Solid Beer app, Untappd alike (Pano, Erwin, Dimitri, Pieter, John, Joost, Gerard)
The use cases are slowly starting up now, but we expect to have more development activities from September onwards
Solid use cases? Solid Utrecht, Apr 9 (2/3)
• Use cases with farmer PODS/apps in multiple chains (Inge), use cases with Patient
PODS/apps within the health sector and use cases with Student PODS/apps within the
education sector are very interesting for Solid and PLDN, but further investigation is
needed to decide whether this can be PLDN-Solid community activity the coming half
year or whether this is an in-house development by a project within an organization or
a consortium of organizations (but also for these cases it is possible to give an update
and/or demo on a PLDN-Solid event in the future to share the Solid best practices and
lessons learned with all other members in the local/global Solid community)
• More in general, use cases for Solid PODS/apps for companies, the concepts, principles
and ideas for Solid can be used in a large number of situations to decouple data from
apps
Solid use cases? Solid Utrecht, Apr 9 (3/3)
• And it would be nice to investigate whether it is feasible to organize the development
of a new PLDN wiki/website as a Solid development learning experience for a small
team of PLDN-members and/or students that would like contribute to this use case
on a voluntary basis
• The traditional card board version of the PLDN Play-a-LOD ontology game for kids is
expected to be completed before the summer holiday and after the summer holiday we
will decide whether we would like to work on a digital Solid version of this game with
maybe also an interactive whiteboard (IWB) variant that can be used at schools (the
grey bar of use case 2 in the planning overview on slide 3)
NEWS: Play-a-LOD is now available !
The Play-a-LOD Animals game
Learn about Linked Open Data in a playful way
Sample triple: Eagle (subject) – has (predicate) – Wings (object) (6 points)
Check the www.playalod.nl website for more information on Play-a-LOD (in Dutch)
Join the Solid HackaLOD team?
Contact us via platformlinkeddatanl@gmail.com
if you want to participate in a Solid HackaLOD team
November 29-30th
Radio Kootwijk
Vision…, interlink data and knowledge from
different communities in a uniform way
Student
Dossier
(PDS)
MyFinancialData
MyHealth&FitnessData
MyEducationData
MyHomeData
OurSolidLinkedDataKnowledge
OurSpatialLinkedDataKnowledge
Contact
Pieter van Everdingen
(platformlinkeddatanl@gmail.com)
Hans van Bragt
(hans.vanbragt@bdvc.nl)
Website
www.platformlinkeddata.nl
LinkedIn-group LOD Nederland
www.linkedin.com/groups/466278
Twitter @linkeddatanl
hashtag #linkeddatanl
Newsletter
www.pldn.nl/wiki/Nieuwsbrieven
PLDN communication channels

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Solid The Hague – June 28th, 2019

  • 1. SOLID THE HAGUE BART ROORDA (VIERDE VRIJDAG!) PIETER VAN EVERDINGEN (PLDN) JUNE 28TH, 2019 #linkeddatanl #webwewant
  • 2. Solid The Hague – Program Session topics: 1. Weaving the web vision 2. PLDN & Linked Data intro 3. Solid intro + POD & apps demo 4. Solid use cases & topics 5. Drinks & food
  • 4. Platform Linked Data Netherlands (PLDN) Our open innovation community in a nutshell Leads/participants • Events • Working groups • Publications Sponsors • Gold sponsor • Silver sponsor • Bronze sponsor Steering committee Contact Pieter van Everdingen/ Hans van Bragt platformlinkeddatanl@gmail.com Website www.platformlinkeddata.nl LinkedIn-group LOD Nederland www.linkedin.com/groups/466278 Twitter @linkeddatanl hashtag #linkeddatanl Newsletter www.pldn.nl/wiki/Nieuwsbrieven
  • 7. PLDN sponsors Contact us if you would like to sponsor the PLDN-activities (see our sponsorship packages-page for the sponsoring options)
  • 9. Why linked data…, it starts with a desire Most persons have the desire to: • Connect • Collaborate • Share digitally & socially
  • 10. Current practices…, many barriers But often suffer in real-life from: • Organizational • Technical • Legal Which makes sharing information and smart collaboration difficult barriers !!
  • 11. Solution A…, traditional scenario’s Drawbacks: • Wide variety of data formats • Many transfer protocols • Rigid • Expensive • Many uncontrolled data copies
  • 12. Solution B…, linked data scenario’s Benefits: • One data format (RDF) • One protocol (HTTP) • More flexible • More cost-efficient • No unnecessary data copies
  • 13. Linked Data: A way for publishing data on the web (with focus upon open web standards and re-usability). Data is stored as triples (based upon the RDF standard) and is query-able via the SPARQL standard, which supports federated queries upon different data sources in one query Linked Data…, web of data
  • 14. 1. RDF (Resource Description Framework) ▪ Triples (Subject-Predicate-Object) ▪ URI’s (Unique Resource Identifiers) ▪ Vocabulairies (re-usable glossaries & models) 2. SPARQL (Simple Protocol And RDF Query Language) Linked Data…, basic elements Data model Query Language Unique internet address of a data-element!! Assertions about data-elements in sentences Re-usable modeling elements
  • 15. Linked Data…, W3C standards & API’s vision Modular Ontology Design Context 1 Context 2, 3, 4, etc. Many OpenAPI lookup services for internal and external reference data External Referencedata Taxonomies/Thesauri (SKOS) Data models (RDFS, OWL) Internal Referencedata Data instances (RDF-serialization) OpenAPI OpenAPI OpenAPI OpenAPI SHACL SHACL Make data as e.g. CSV, JSON & JSON-LD available in 1 OpenAPI Constraints (SHACL) Validation Reports (SHACL) Data models (UML) Data (e.g. CSV, JSON) Actual Data OpenAPI’s voor data that is often used (for web developers) OpenAPI OpenAPI SPARQL OpenAPI OpenAPI SPARQL for Linked Data experts
  • 16. Source: W3C – RDF 1.1 Primer Linked Data…, triples in knowledge graps
  • 17. Linked Data…, ‘data clouds’ Paradigm shift Chains, networks, clouds of Linked data, which are all knowledge graphs (don’t think in terms of tables and columns anymore) Every data element on the web is accessible and connectable via a URI
  • 18. Linked Data…, data harmonization !! Source: Trivadis (Semantic Data @ Pharma)
  • 19. Roadmap…, linked data potential ! Future outlook: • Global access to knowledge • Linked data as the ‘glue’ • One unifying data format • Bridging the barriers across heterogeneous data environments • Facilitating smart collaboration
  • 21. Negative trend…, undesirable data lock-in of personal data in social media platforms … ‘walled gardens’, no re-use, you have to move data and/or persons between platforms !!
  • 22. Solid…, using data from different sources Adapted from: https://rubenverborgh.github.io/PLDN-Solid-Kick-Off-2019/#
  • 23. Solid…, decouple data from apps!!! Adapted from: https://rubenverborgh.github.io/PLDN-Solid-Kick-Off-2019/#
  • 24. Solid…, application architecture Adapted from: https://rubenverborgh.github.io/PLDN-Solid-Kick-Off-2019/#
  • 25. Solid examples…, game app App GUI App engine App data Client-side scripts (Javascript*) Server-side scripts (Javascript*) Data sources (Turtle) MyPOD (app user 1) YourPOD (app user 2) - HTML (structure) - CCS (presentation) - Javascript* (behavior) Solid auth-client + RDF & SPARQL tooling (e.g. LDFlex) React/Vue/Angular components* (optional) Solid App (web/native/mobile/hybrid/…) Possible app features (e.g. chess game): - Login to game app with your WebID - Grant access to your POD (checkboxes) - Invite another player (with a POD) - Other player accepts the invitation - Play a game (use app & PODS data) & - Publish game data in PODS (in parallel) + *: Solid is technology agnostic, you can use any web technology with Solid components
  • 26. Solid examples…, my PODS (so far) For different contexts/purposes: • https://pietervaneverdingen.inrupt.net/profile/card#me (personal data I would like to share with e.g. friends) • https://openinc.solid.community/profile/card#me (business data I would like to share with e.g. advisors) • https://pldn.solid.community/profile/card#me (community data I would like to share with community members)
  • 27. Solid examples…, my apps (so far) First versions of apps I’ve used: • https://markbook.org (a bookmark app) • https://vincenttunru.gitlab.io/poddit/ (another bookmark app) • https://pixolid.netlify.com (a photo management app)
  • 28. Solid examples, a short demo
  • 29. DEMO: GET YOUR SOLID POD
  • 30. Comments for this screen Click on one of the Get a (Solid) POD buttons on this screen
  • 31. Comments for this screen Choose which POD provider is allowed to host your POD (but you can also install a Solid server yourself to host your own PODS and to be in control yourself totally)
  • 32. Comments for this screen Click on the Register button to create a POD account
  • 33. Comments for this screen Create a unique POD name that will serve as your WebID and enter a password and an e-mail address
  • 34. DEMO: SOLID POD EXAMPLE
  • 35. Comments for this screen This the home page for one of my PODS (and you are looking at the current version of the GUI that is going to change in the near future)
  • 36. Comments for this screen When you click the Profile link on the home page of my POD then see the (linked) data for my Profile`with e.g. my profile characteristics and the apps that I trust
  • 37. Comments for this screen When you click the Edit your Profile icon in the menu then you navigate to a Profile data entry form where you can drag a picture onto your profile from your hard drive and type in more profile characteristics in the data entry fields
  • 38. Comments for this screen You can also drag http links to screen sections with a bull’s eye sign, e.g. for web sites and persons (with a known WebID) you want to connect to your profile
  • 39. Comments for this screen When you start with a new POD then your Public Folder will be empty. The Turtle (ttl) files are created by the Solid apps that I use, like the chess app and two bookmark apps, Poddit and Mark Book! There is no fixed structure for a POD.
  • 40. Comments for this screen Click on the green plus sign to start creating a folder, a contact list, a meeting, a chat, a document, a source or a link, for this demo we will create a folder
  • 41. Comments for this screen Type the demo folder name in the data entry field and click on the green check sign to create the demo folder
  • 42. Comments for this screen And refresh the Pubic Folder page to see the demo folder
  • 43. Comments for this screen To start deleting the demo folder click the under the hood icon
  • 44. Comments for this screen Click then on the red no entry sign
  • 45. Comments for this screen Click then on the Delete folder button
  • 46. Comments for this screen And click the Ok button to delete the demo folder from your POD and refresh the Public Folder page to see the result
  • 47. Created by Mark Book! Created by Poddit Comments for this screen In the bookmarks.ttl file you see 3 bookmarks that were created with 2 different bookmark apps: Poddit and Mark Book!
  • 48. Compatible data shapes ! Comments for this screen Here you see a first example of layered compatibility for the bookmark data shapes that were created by two interoperable Solid bookmark apps
  • 49. DEMO: SOLID APPS EXAMPLES
  • 50. Comments for this screen You first have to authenticate yourself with your WebID before you can start using a Solid app
  • 51. Comments for this screen And you have to grant access to your POD before an app can use your POD data and can add data to your POD
  • 52. Comments for this screen Then you see that Mark Book is aware of all the bookmarks that were created by Poddit and Mark Book!
  • 53. Comments for this screen And you see that Poddit is also aware of all the bookmarks that I have created with two interoperable apps
  • 54. Comments for this screen In the photo management app Pixolid, I’ve upload one picture (from the Solid Utrecht session), which I’ve made public (you can also share pictures with friends that are known in your POD)
  • 55. Comments for this screen I’ve liked it and I’ve created one sample comment
  • 56. Comments for this screen And in Pixolid, I can also see the pictures that friends have shared with me
  • 57. Comments for this screen And on the Profile page in my POD you see a reference to the Pixolid folder
  • 58. Comments for this screen And when you click on the Pixolid link the you see the data in the Pixolid folder (the images, comments and likes)
  • 59. Comments for this screen The picture of the Solid Utrecht session
  • 60. Comments for this screen The comment that I’ve added to the picture, etc.
  • 62. Solid…, create ones, re-use many times!! Adapted from: https://rubenverborgh.github.io/PLDN-Solid-Kick-Off-2019/#
  • 63. Solid…, open up app and data markets Adapted from: https://rubenverborgh.github.io/PLDN-Solid-Kick-Off-2019/#
  • 64. Solid…, how to get more involved? https://forum.solidproject.org
  • 65. Solid…, how to get even more involved? https://gitter.im/solid
  • 66. Solid…, how to get deeply involved? https://github.com/solid/
  • 67. Solid…, how to keep the overview? https://github.com/solid/information
  • 68. Solid…, where to find apps? https://github.com/solid/solid-apps
  • 69. Solid…, how to start developing apps? https://solid.inrupt.com/docs/getting-started
  • 70. Solid…, how can we make it more fun (and more easy) for developers? https://ruben.verborgh.org/blog/2018/12/28/designing-a-linked-data-developer-experience/
  • 71. 1. Shapes – define the fields and structure that client and apps can expect to find in a view over a piece of data 2. Forms – are part of a user interface that allows people to easily view, edit, and create data in a given shape 3. Footprints – explain to an app where to store new data corresponding to a shape, and how it should be wired up within existing data Solid…, what’s next? Source: https://ruben.verborgh.org/blog/2019/06/17/shaping-linked-data-apps/ Shape aware GUI’s & queries For layered compatibility Gives clarity about where and how to store new data
  • 72. Solid…, where can you find events? https://github.com/solid/information/blob/master/solid-events.md
  • 73. SOLID ACTIVITIES & USE CASES? (DISCUSSION)
  • 74. Solid…, activities within our scope 2018 2020Q4 2018 Q1 2019 Q2 Q3 Q4 Solid Utrecht Dec 11 PLDN event Jan 31 PLDN-Solid Kick-Off Apr 9 MU 4 Jul 7 Use case 1Phase I Solid topic 1 Use case 1 Use case 2 Solid topic 1 Use case 2 Use case 3 Use case 3 Solid event Dec 10-12 (in Paris) MU 3 Jun 11 MU 2 May 14 MU 5 Oct 8 Solid The Hague Jun 28 Solid The Hague + Solid Amsterdam Sep/Oct? HackaLOD Nov 29-30 ECP Jaarcongres Nov 14
  • 76. Solid use cases? Solid Utrecht, Apr 9 (1/3) • MyPictures app (Ferry, …) • Reference data administration/lookup services app (Joep, Hayo, Wessel, …) • Fully open MyPublications edit/review/publish app (Gerard, Pieter, Erwin, …) • Open dictionaries & Dutch laws annotation and editing app (Hayo, Sander, …) • Sharing economy services using Solid PODS/apps (Jeroen, …) • New PLDN wiki/website with expert profiles (Pieter, PLDN-community effort?) • Local PODS provider business opportunity (Hapee, …) • Solid Beer app, Untappd alike (Pano, Erwin, Dimitri, Pieter, John, Joost, Gerard) The use cases are slowly starting up now, but we expect to have more development activities from September onwards
  • 77. Solid use cases? Solid Utrecht, Apr 9 (2/3) • Use cases with farmer PODS/apps in multiple chains (Inge), use cases with Patient PODS/apps within the health sector and use cases with Student PODS/apps within the education sector are very interesting for Solid and PLDN, but further investigation is needed to decide whether this can be PLDN-Solid community activity the coming half year or whether this is an in-house development by a project within an organization or a consortium of organizations (but also for these cases it is possible to give an update and/or demo on a PLDN-Solid event in the future to share the Solid best practices and lessons learned with all other members in the local/global Solid community) • More in general, use cases for Solid PODS/apps for companies, the concepts, principles and ideas for Solid can be used in a large number of situations to decouple data from apps
  • 78. Solid use cases? Solid Utrecht, Apr 9 (3/3) • And it would be nice to investigate whether it is feasible to organize the development of a new PLDN wiki/website as a Solid development learning experience for a small team of PLDN-members and/or students that would like contribute to this use case on a voluntary basis • The traditional card board version of the PLDN Play-a-LOD ontology game for kids is expected to be completed before the summer holiday and after the summer holiday we will decide whether we would like to work on a digital Solid version of this game with maybe also an interactive whiteboard (IWB) variant that can be used at schools (the grey bar of use case 2 in the planning overview on slide 3)
  • 79. NEWS: Play-a-LOD is now available !
  • 80. The Play-a-LOD Animals game Learn about Linked Open Data in a playful way Sample triple: Eagle (subject) – has (predicate) – Wings (object) (6 points) Check the www.playalod.nl website for more information on Play-a-LOD (in Dutch)
  • 81. Join the Solid HackaLOD team? Contact us via platformlinkeddatanl@gmail.com if you want to participate in a Solid HackaLOD team November 29-30th Radio Kootwijk
  • 82. Vision…, interlink data and knowledge from different communities in a uniform way Student Dossier (PDS) MyFinancialData MyHealth&FitnessData MyEducationData MyHomeData OurSolidLinkedDataKnowledge OurSpatialLinkedDataKnowledge
  • 83. Contact Pieter van Everdingen (platformlinkeddatanl@gmail.com) Hans van Bragt (hans.vanbragt@bdvc.nl) Website www.platformlinkeddata.nl LinkedIn-group LOD Nederland www.linkedin.com/groups/466278 Twitter @linkeddatanl hashtag #linkeddatanl Newsletter www.pldn.nl/wiki/Nieuwsbrieven PLDN communication channels