OPDS 1.1 and beyond Hadrien Gardeur @Hadrien Feedbooks
OPDS 1.1 and beyond
Hadrien Gardeur @Hadrien Feedbooks
Creating a new architecture using common, open standards that permits people to find, buy, acquire, and read books from any source, on any device, using many different ebook applications.
Goal
Read anything, anywhere.
Short Version
Two years ago From Stanza catalogs to a standard
August 2010 – OPDS 1.0 Standard way to search, browse & acquire
June 2011 – OPDS 1.1 Complex acquisitions, advanced browsing
December 2011 – OPDS 1.2 Better support for lending & subscriptions
Links to catalogs & callbacks
State of the ecosystem
20+ OPDS Clients … a must have feature for indie apps
… access to content from major international publishers
> 10 mil. users
… thousands of them using their own catalogs
A first version of an OPDS Validation Service
New Features OPDS 1.1
#1 Facets
#2 Featured content
#3 Indirect Acquisition
Support for complex acquisition flows
Among other things… support for transactions in browser
packaging formats (ZIP archive, DRM)
Solving the issue of having an intermediate
resource between the catalog and the publication itself.
From Catalog to Catalog / Shelf / Callback
Catalog
Catalogs are discoverable and can be shared
We use catalogs to… discover browse search
acquire content
Catalogs are meant to organize large collections, enable content providers to curate them, provide
an integrated experience for the end user
Shelf
A shelf is where I store my content
Shelfs can be… specific to a catalog global or aggregated
public or private synchronized
A shelf enables the user to find and read previously acquired content anywhere
Callback
A callback is a message
It contains… how to acquire the content
metadata location of the shelf & catalog service discovery information
A callback is a message between the content
provider and the reading environment. It opens the door to the reading ecosystem.
Callback Example #1 Web Reading Systems
Current workflow
1. Buy the book 2. Download the file locally
3. Upload the file 4. Start Reading
OPDS Callback
1. Buy the book (OPDS Callback)
2. Start Reading
Callback Example #2 Service discovery
22/09/2011
Services
Downloading a publication could trigger…
the ability to share annotations in your field
the addition of a peer reviewing service
the discovery of the full arXiv catalog
Upcoming Features OPDS 1.2
#1 OPDS URI Scheme
A necessary evil
One click to… Add a catalog
Add a shelf Launch a callback
#2 Lending & Subscription
Lending & Subscription
OPDS 1.2 will provide better support for…
Indicating the availability of a publication (pre-order, lending availability, next issue)
Length of the acquisition
(return date, subscription length)
A subscription shelf
What’s next ?
A new serialization ? JSON ? Maybe.
Domain & media specific metadata
Better ecosystem
(validation, discovery, documentation)
Integration with upcoming standards (annotations ?)
Discover OPDS at http://opds-spec.org