Media Asset Retrieval Systems
session sponsored by SIGs: VIS & CR 
•	Asset Management for Public Broadcasting: An Overview. Alison White,  
2.  Work Domain Analysis of Public Broadcasters. Efthimis N. Efthimiadis & Jens-Erik Mai, UW
3.  The Public Broadcasting Metadata Dictionary Project: Process & Preliminary Recommendations. Paul E. Burrows, Univ. of Utah 
Work Domain Analysis
of Public Broadcasters
Efthimis N. Efthimiadis & Jens-Erik Mai
GAs:  Tariq Alam, Jennifer Bisson, Eydie Detera, Layne Foit, Joseph Tennis
Consultant: Annelise Mark Pejtersen, Risø Denmark
The Information School
University of Washington
Agenda
•	Background 
–	Convergence Consortium
•	MARS
•	Current State of accessing broadcast 
–	KCTS, KUOW
•	Goals & Objectives
•	Methodology
–	Cognitive Work Analysis
•	Results
•	Deliverables
•	Future work
Background
•	Convergence Consortium:
–	Public broadcasters
–	Public libraries
–	Public schools
–	Information School, University of Washington
–	Museums
–	Local Government
–	Environmental organizations
–	Community organizations
•	Vision:
–	connect information, people, & technology
–	tap into the social capital of the Puget Sound Region to provide systems and services to the public.    
•	Goal
–	MARS project: Online resource that gives access to content from public TV and Radio
MARS Partners
•	Corporation for Public Broadcasting (CPB) (funding agency)
•	KCTS (TV station)
•	KUOW (radio station)
•	Seattle Public Schools 
•	Seattle Public Library 
•	King County Library
•	The Information School, UW
Current Situation @ KCTS
•	Produce shows for local & national broadcast
•	Archive in tape library
–	Poorly & inconsistently organized
•	Stream some broadcasts
–	Not indexed
–	Not searchable
•	Raw (stock) footage
–	Indexed and annotated by interns
–	No controlled vocabularies
–	No indexing guidelines
KCTS Search
Motion Descriptors 

•	Camera Motion, 
•	Motion Trajectory, 

•	Parametric Motion,
•	Motion Activity
Current Situation @ KUOW
•	Provide access to their local produced broadcasts on their website
–	No controlled vocabulary
–	Input by a staff member
–	Poor search mechanism
•	hidden 3 layers down 
•	string match only

KUOW Search

KUOW Search
Challenges to Accessing 
KCTS & KUOW Broadcasts
•	Provide effective subject representation
–	For broadcasters
–	Teachers & students
–	General public
•	Provide effective search mechanisms   
•	Utilize CPB Metadata Element Set (under development) and controlled vocabularies (to be developed).  
•	Integrate KCTS & KUOW search systems with local public libraries catalogs 
•	The ultimate goal is to produce a model that CPB (PBS & NPR) affiliates can replicate around country.
MARS Phase I:
Goals & Objectives
•	to understand current information practices within KCTS and KUOW 
•	to determine how MARS would improve the management and sharing of broadcasts 
•	Needs assessment
–	KCTS & KUOW
–	Public broadcasters
–	Teachers
–	General public

Methodology
•	Cognitive Work Analysis (CWA)
•	Survey 
Cognitive Work Analysis (CWA) Framework
•	Work centered analysis approaches information interactions by a number of dimensions. 
•	This analysis addresses dimensions such as: 
		- the actual work 
				 environment 
		- the work domain 
		- task situation in terms of: 
				(a) work domain
				(b) decision making
				(c) mental strategies 
Cognitive Work Analysis (CWA) Framework
•	Perspectives (or Dimensions) of Means-Ends of Work
•	work domain/organization
•	task domain
•	collaboration about tasks
•	decision task
•	collaboration in decision tasks
•	strategies (information searching)
•	collaboration in strategies
•	allocation of roles
•	management
•	Means-Ends Abstraction Levels
•	goals/constraints
•	priorities
•	functions
•	work processes
•	physical objects
Data Collection
Data Analysis: The abstraction hierarchy @ KCTS
Data Analysis: 
uncovering common ground
Needs arisen from the CWA at KCTS
Some examples: 
•	Tapes need to be identified, labeled, cataloged, and organized
•	Metadata about tape contents should be created and made accessible through a central online database
•	Search strategies should be accommodated that allow users to search using a variety of metadata attributes
•	Subject description should be provided at shot or sequence level
Deliverables of Phase I
•	Needs assessment
–	CWA of KCTS
–	CWA of KUOW
–	CWA of teachers
•	Survey of public broadcasters’ use of metadata
•	Market research survey 
–	General public
–	Teachers 
Future Work: Phase II 
•	KCTS and KUOW will complete and refine existing hardware, software and workflow systems for asset input, storage and retrieval.
•	Utilize the CPB Metadata Schema. 
•	Create or customize controlled vocabularies for subject access. 
•	Develop distributed search capability between the partner sites.
Thank You!
Questions at the end please.