OpenLink Data Spaces
What are Data Spaces?
A named structured data cluster within a distributed data network where each item of data (each "datum") has a unique identifier.
Fundamental characteristics of data spaces include:
- Each Data Item (or Entity) is endowed with a unique HTTP-based Identifier
- Entity Identity, Access, and Representation are each distinct from the others
- Entities are interlinked via attributes and relationship properties
- Creation, Update, and Deletion privileges are controlled by the space owner
In relation to the Web, data spaces provide clustered points of access to structured data; basically, they provide structured data access partitioning just as namespaces provide name oriented partitioning.
Why are Data Spaces important?
Data Spaces provide a powerful conceptual model based virtualization layer that sits atop heterogeneous data sources.
They enable the creation, publication, and general management of structured data items from a pool of disparate data sources.
Examples include:
- Structured profiles for individuals or organizations (and other groups) exposing rich metadata for:
- Online Accounts
- Favorite Things
- Likes and Dislikes
- Areas of Interest
- Product & Service Wish-Lists
- Product & Service Offer-Lists
- Shared application spaces such as:
- file sharing
- calendars
- bookmarks
- feed subscriptions
- blogs
- wikis
- discussions & conversations
- instant messaging
- publish (upstream) & subscribe (downstream) model data exchange
What is OpenLink Data Spaces?
ODS is an industry standards-compliant data space platform that includes a broad collection of distributed collaborative applications covering: blogs, wikis, shared bookmarks, file management, calendaring, email, photo galleries, discussion forums, polls, and more.
Every item of data within an ODS instance is endowed with a de-referenceable URI.
This enables any HTTP-compatible client to obtain a negotiated representation of the description of any ODS data item.
Challenges Alleviated via ODS
User content across the Web, both Intranet and Extranet, is growing exponentially, while time, attention, and comprehension of the resulting data streams is at best static, and typically shrinking.
Compounding the problem is the fact that the exponential growth of user generated data has resulted in a proliferation of data silos, due to the popularity of Web 2.0 solution patterns.
All of this is happening at a time when individuals and organizations alike are seeking to do more with less, by exploiting the agility-producing powers of "Open Data Access" across enterprise and/or Web domains.
Product Features
Query Service Support
ODS supports a number of Query Services:
- GData
- OpenSearch
- XQuery/XPath over HTTP
- Full Text Search over HTTP
- SPARQL
Publishing Protocol Support
ODS supports the following publishing protocols:
- GData
- Atom 1.0
- Moveable Type
- MetaWeblog
- Blogger
Web Services
Application Components
- ODS-Framework - An OpenID- and Yadis-compliant Framework for building Distributed Collaborative Applications that are equipped with Single-Sign-On (SSO) functionality and auto-generated RDF Data Spaces
- ODS-Weblog - A comprehensive blogging platform supporting all the major publishing protocols (Atom, Moveable Type, Meta Weblog, and Blogger) and includes automatic generation of content-syndication gems in RSS 1.0, RSS 2.0, Atom, SIOC, OPML, OCS, and other formats
- ODS-Briefcase - A WebDAV-based Unified Storage Solution that incorporates automated extraction and management of metadata
- ODS-Feed-Manager - An RSS 1.0, RSS 2.0, Atom, OPML, and OCS Feed Aggregator
- ODS-Wiki - A Wiki Platform supporting the Atom Publishing Protocol, Twiki, MediaWiki? (Wikimedia), and Creole markup dialects
- ODS-Mail - A Web-based Email Client
- ODS-Calendar - A Calendar manager
- ODS-Bookmark-Manager - A Shared Bookmark Manager
- ODS-Gallery - Photo & General Image Sharing
- ODS-Polls - Polls Manager
- ODS-Addressbook - An Address Book Manager
- ODS-Community - Group/Community Mode service for all of the ODS-* applications
- ODS-Discussions - Web-based Newsgroups Aggregator and Reader.
- ODS-eCRM? - Web-based Customer Relationship Manager.
News
Getting Started
ODS is pre-installed as part of the demonstration database (demo.db) bundled with OpenLink Virtuoso Open-Source Edition.
If you are running the server with the default demo database configuration, simply point your browser to http://localhost:8890/ods.
See Setting up ODS for a simple configuration guide.
Installation Guides
How Do I...
Intranet Quick Start Guides
Third-Party Platform Integration
Installation Guides
Live Demonstrations
FAQs
ODS Tutorials
Reference Guides
Weblogs & Commentary
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