1.
@azaroth42
rsanderson
@getty.edu
IIIF:
InteroperabilituyIIIF:
Discovery
@azaroth42
rsanderson
@getty.edu
Discovery
of
IIIF
Resources
International
Image
Interoperability
Framework
Technical
Working
Group
Vatican,
June
2017

2.
@azaroth42
rsanderson
@getty.edu
IIIF:
InteroperabilituyIIIF:
Discovery
@azaroth42
rsanderson
@getty.edu
Discovery
Areas
of
Work
Four
areas
of
work
will
facilitate:
1. crawling
and
harvesting
of
IIIF
resources
2. access
to
semantic
descriptive
content
for
indexing
3. synchronization between
publisher/aggregator
4. import
to
viewers once
the
resource
is
found
Charter:
• http://iiif.io/community/groups/discovery/charter/

3.
@azaroth42
rsanderson
@getty.edu
IIIF:
InteroperabilituyIIIF:
Discovery
@azaroth42
rsanderson
@getty.edu
Chartered
Timeline
• Q4
2016:
Group
established,
work
commences
• Q1
2017:
Gather
Use
Cases;
Publish
Import
draft
• Q2
2017:
Publish
Crawling
draft
• Q3
2017:
Publish
Indexing
and
Notification
drafts
• Q4
2017:
Revisions
to
Import;
Implementations
of
Crawling
• Q1
2018:
Implementations
of
Indexing
and
Notification
• Q2
2018:
Revisions
to
specifications
and
implementations
• Q3
2018:
Revisions
to
specifications
and
implementations

4.
@azaroth42
rsanderson
@getty.edu
IIIF:
InteroperabilituyIIIF:
Discovery
@azaroth42
rsanderson
@getty.edu
Chartered
Timeline
• Q4
2016:
Group
established,
work
commences
• Q1
2017:
Gather
Use
Cases;
Publish
Import
draft
• Q2
2017:
Publish
Crawling
draft
• Q3
2017:
Publish
Indexing
and
Notification
drafts
• Q4
2017:
Revisions
to
Import;
Implementations
of
Crawling
• Q1
2018:
Implementations
of
Indexing
and
Notification
• Q2
2018:
Revisions
to
specifications
and
implementations
• Q3
2018:
Revisions
to
specifications
and
implementations

5.
@azaroth42
rsanderson
@getty.edu
IIIF:
InteroperabilituyIIIF:
Discovery
@azaroth42
rsanderson
@getty.edu
Harvesting
Discussions:
Options
• IIIF
Collections
• Sitemaps
• With
ResourceSync
• With
IIIF
Extensions
• With
HTTP
layer
Extensions
• Schema.org
• ActivityStreams 2.0

6.
@azaroth42
rsanderson
@getty.edu
IIIF:
InteroperabilituyIIIF:
Discovery
@azaroth42
rsanderson
@getty.edu
Harvesting:
Collections
ü Already
part
of
the
specification,
nothing
new
to
do
ü Ensures
finding
IIIF
Resources
❌ Different
usage
– curation/presentation
vs
discovery
❌ Will
find
same
content
multiple
times
❌ Slow,
inconsistent
implementations
❌ No
incremental
update
support
or
document
metadata
❌ Not
sure
if
people
create
top
level
collections
• Mitigation:
Clear
discovery
profile
for
collections?

7.
@azaroth42
rsanderson
@getty.edu
IIIF:
InteroperabilituyIIIF:
Discovery
@azaroth42
rsanderson
@getty.edu
Harvesting:
Sitemaps
ü Understood
by
web
search
engines
(useful?)
ü Simple
spec,
lots
of
implementations
❌ Conflict
with
CMS
sitemaps
❌ Difficult
to
reproduce
set
membership
vs
entire
collection
• Mitigation:
Separate
IIIF
sitemap
hierarchy?
❌ Duplicates
collection
information
❌ XML
not
JSON
❌ Not
Linked
Data

8.
@azaroth42
rsanderson
@getty.edu
IIIF:
InteroperabilituyIIIF:
Discovery
@azaroth42
rsanderson
@getty.edu
Harvesting:
+ResourceSync
ü +
hierarchical
sets,
dump
files,
changelogs,
metadata
ü +
seeAlso in
ResourceSync file
directly
ü Notifications
pattern
(callbacks+websub)
❌ Makes
simple
spec
complex
– quite
far
from
Sitemaps
❌ With
all
of
its
challenges
still
❌ Lack
of
implementations
/
adoption

9.
@azaroth42
rsanderson
@getty.edu
IIIF:
InteroperabilituyIIIF:
Discovery
@azaroth42
rsanderson
@getty.edu
Harvesting:
+Other
Extension
ü Add
only
necessary
features
in
own
namespace
ü Smaller
spec
than
ResourceSync
❌ But
not
a
standard,
and
would
compete
Other?

10.
@azaroth42
rsanderson
@getty.edu
IIIF:
InteroperabilituyIIIF:
Discovery
@azaroth42
rsanderson
@getty.edu
Harvesting:
+HTTP
ü Use
only
standards
ü Separates
document
metadata
and
object
metadata
❌ Difficult
to
implement
for
both
client
and
server
Other?

11.
@azaroth42
rsanderson
@getty.edu
IIIF:
InteroperabilituyIIIF:
Discovery
@azaroth42
rsanderson
@getty.edu
Harvesting:
Schema.org
ü ???
❌ ???
Not
yet
discussed

12.
@azaroth42
rsanderson
@getty.edu
IIIF:
InteroperabilituyIIIF:
Discovery
@azaroth42
rsanderson
@getty.edu
Harvesting:
ActivityStreams
ü ???
❌ ???
Not
yet
discussed

13.
@azaroth42
rsanderson
@getty.edu
IIIF:
InteroperabilituyIIIF:
Discovery
@azaroth42
rsanderson
@getty.edu
Import
to
Viewers
Ongoing
work
to
draft
a
specification
based
on
hackathon
implementations.
Call
for
use
cases
closed:
https://github.com/IIIF/iiif-­‐stories/
issues?q=is%3Aissue+is%3Aopen+label%3Adiscovery-­‐import

14.
@azaroth42
rsanderson
@getty.edu
IIIF:
InteroperabilituyIIIF:
Discovery
@azaroth42
rsanderson
@getty.edu
Discussion
Topics
Discuss
and
evaluate
use
cases
Discuss
scope
of
work
Continue
technical
discussion
of
formats
(if
time)

15.
@azaroth42
rsanderson
@getty.edu
IIIF:
InteroperabilituyIIIF:
Discovery
@azaroth42
rsanderson
@getty.edu
Discuss!