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Introduction to Metadata

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by

Liz Woolcott

on 14 October 2014

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Transcript of Introduction to Metadata

Introduction to Metadata
Future Trends
...Coming Back to Our User
What is Metadata?
Academic definition:
Data about data

The
Roadmap
We call it the 'Net....
Web of Data
Which really means:
Information about an item.
WHO
WHAT
WHERE
WHEN
So, who creates
Libraries
Metadata
?
Governments
Broadcasting
Cultural Heritage
Institutions
METADATA
And more like this
Too many standards, schemas, content dictionaries, and rules....
Cataloguing Cultural Objects (CCO)
Categories for the Description of Works of Art (CDWA)
Describing Archives: A Content Standard (DACS)
Dublin Core (DCMI)
Encoded Archival Description (EAD)
Exchangeable Image File Format (EXIF)
Learning Object Metadata (IEEE LOM)
International Press Telecommunications Council (IPTC)
Machine-Readable Cataloging (MARC)
Metadata Encoding and Transmission Standard (METS)
Metadata Object Description Schema (MODS)
NISO Metadata for Images in XML (MIX)
PBCore (Public Broadcasting)
Resource Access and Description (RDA)
Looks less like:
Linked Data
Microdata
Microformats
OWL
(Web Ontology Language)
OpenCyc
Basic types of Metadata:

Descriptive

Administrative

Technical

Structural (Relational)

Preservation

Describes the intellectual content
Describes the rights or records management issues
Describes aspects of the digital file
Businesses
and more....
Describes relations to other material or relations within an object (pages, folders, etc.)
Describes the digital provenance of an object
Linked Data
Semantic Web
Linked Open Data Cloud
URI = Uniform Resource Identifier
Think
BARCODE
For example:
Schema.org
Mark-up language used in HTML code.
Defines words - rather than links them.
Birth of Venus
Resource Description Framework (RDF)
http://id.loc.gov/authorities/names/n98108914.html
Library of Congress
but in an
http
format (ideally)
VIAF
http://viaf.org/viaf/179550380/
Defines terms by linking to an authority record
RDF Triples
Botticelli
painted
the

Birth of Venus
http://viaf.org/viaf/179550380/
http://viaf.org/viaf/19686406/
http://purl.org/dc/terms/creator
Subject
Object
Predicate
Also called a "Property"
Extract and map metadata from the digital file rather than input it manually
Minimizes errors
Born digital items
Increased ability to automate metadata
Contain more native metadata
Harnesses mobile technology
Fewer resources to produce larger quantities of data
Split into categories.
Takes narrative information...
Metadata
...and puts it into categories
to enhance it's searchability and interoperability
Why is this useful?
Narrow by facets
We call this...
Structured Data
Metadata provides the contextual framework for the Internet
Waldo is not familiar with how the Internet is structured
Waldo is in a time crunch
He is not going to "learn" a system
Where will he start looking?
What we see...
What web crawlers see...
What we see...
What web crawlers see...
Meet Waldo
Hello Waldo
24 years old
College student
Working on a presentation
Due tomorrow
Average tech skills
Can get around on the Internet
Does not understand how information is structured

What will he use to look up information?
Usually a computer or laptop
How will Waldo evaluate his sources?
He probably won't
How will Waldo search?
He will input the first search term he thinks of
What search tools does Waldo use?
Basic keyword searching
Basic keyword searching
Vague search terms
X
He will expect relevant results
He will not search beyond the
first page of results
He will use the Title and Description information to determine relevancy
But increasingly also mobile devices
This means we have to give concise but descriptive information
Facets (if available)
Waldo will not use Boolean Logic or Advanced Searching
"Did you mean?" features
"Other suggestions" features
Features Waldo will use
AFTER
a keyword search:
He will not use a website that looks complicated
How
Search by attributes
O
M
G
ntological
etadata
roupings
We need to think of them as not just consumers, but also as
Creators
*This is not always a bad thing, either!
(Consider the intent of his searching - Facebook surfing doesn't require authoritative sources.)
Mapping between standards (crosswalks)
Less is More!
Literally... lowering the barrier to entry means more metadata creation
Simplifying Metadata Creation
How do we deal with all these standards?
Liz Woolcott
Metadata Training, Utah State University
Dec. 3, 2013
Full transcript