Linked Data Spaces, Data Portability & Access

What’s The Problem?
We Need To Free Data from the Tyranny of
Application Lock-in
(Silo Busting!)
© 2008 OpenLink Software, All rights reserved.

Problem Origins
Over emphasis on Applications at the expense of their underlying:
Database Engines and Data Models (Relational, Hierarchical, Graph)
Data Access Mechanisms (HTTP based Linked Data, SQL CLIs, Web Services)
Data Query Mechanisms (SPARQL, SQL, XQuery/XPath, etc)

Problem Vectors
Identity
Real World Object Identity
The Web
Exponential Growth of Identity Challenged Applications (SaaS)
Socially induced User Generated Content without Explicit Identity
The Cloud
Infrastructure that reduces cost of producing Identity Challenged Applications.

Aspects of Data Portability
Data Mobility (Import/Export) via standard data formats
RSS, Atom, OPML
Microformats (XFN, hCard, hCalendar, Microdata)
RDF Model Data Representation Formats
RDFa
JSON
N3 / Turtle
XML - RDF/XML, TriX, TriG, and others.

Aspects of Data Access
(C)reate (R)ead (U)pdate (D)elete (CRUD) oriented Data Access by Reference
Relational Database APIs
Generic - ODBC, JDBC, ADO.NET, OLE-DB
Database Specific – Oracle, SQL Server, DB2, MySQL etc.
Web of Linked Data (Federated Graph Database)
RESTful access to Data Items (Objects or Entities) & Their Containers.

Why is This Important?
Your Data belongs to You!
Information Overload is here!
User Generated Content is growing exponentially
Web Application Silos are on the rise courtesy of Web based, and Cloud hosted SaaS solutions
Still only 24 hrs in a day!
You are an Individual
Web Individuality is no longer a trivial pursuit
No Human is an Island (Ubuntu!).

How We Bust Data Silos
Use platforms that engender Federated Identity via:
Personal HTTP Identifiers (WebIDs or Personal URIs)
WebIDs bound to X.509 Certificates
Association of WebIDs with accounts in existing Data Silos (Web 2.0 Apps & Services)
Exposure of Linked Data Spaces built on shared schemas / ontologies.

How Web-Scale Data Access Should Work
You Get Yourself a WebID via an Identity Service Provider:
self hosted
3 rd party hosted
Profile as a Service (PaaS) solution
Associate Your WebID with existing Silo-Accounts:
Blogs, Wikis, Social-Networks, Bookmarks, Photo Galleries, Discussions etc.
Associate Your WebID with existing OpenID and OAuth services.

Personal Data Space Example using ODS
You Get Yourself a WebID via one of the following ODS instance forms:
a self hosted (via an Amazon EC2 AMI or Hosting Services Provider)
shared SaaS service (MyOpenLink.NET)
Associate Your WebID with existing Silos:
Use the ODS Profile Page to Identify online accounts and home pages for - Blogs, Wikis, Social-Networks, Bookmarks, Photo Galleries, Discussions etc.
Your ODS Account is Your WebID, OpenID with OAuth upstreaming (pushback) to associated accounts.

Some ODS Specific Features
Every Data Item has a Unique HTTP scheme Identifier
Linked Data Spaces are based on shared schemas
SIOC, FOAF, GoodRelations, Dublin Core, SKOS, Music Ontology, Bibliographic Ontology, Annotea etc.
Upstreaming (pushback) via Publishing Protocols
Linked Data Spaces are traversable via HTTP user agents
All Data is SPARQL Accessible.

Additional Information
Live Instances:
http://myopenlink.net/ods
Open Source Edition Information
http://ods.openlinksw.com/wiki/ODS/

http://www.slideshare.net	14
http://paper.li	4
http://www.linkedin.com	1

Linked Data Spaces, Data Portability & Access

by Kingsley Idehen

Accessibility

Categories

Upload Details

Usage Rights

3 Embeds 19

Statistics

Linked Data Spaces, Data Portability & Access Presentation Transcript