Transcript Models for Digital Libraries CSC 9010 Digital Libraries - week 2 The 5S model is the work of Edward A.

Models for Digital Libraries
CSC 9010 Digital Libraries - week 2
The 5S model is the work of Edward A. Fox and his students at
Virginia Tech. These slides rely heavily on that work.
Week 2 goals
• Expand our understanding of concept maps
• Discuss reading of “As we may think”
• Expand and confirm understanding of the 5 S
model
• Use the 5 S model to direct thinking about the
design of a DL
• Pointer to digital library software instructions
• Begin plans for initial DL installation
– What subject?
– Form teams
“As we may think”
• An exercise –
– A Focus question: What is Vannevar Bush’s
vision of the future of knowledge
management?
– Provide random words or phrases that come
to mind as you recall this article
• aka “the parking lot”
– <Jotted on the board as they are mentioned>
– In groups, make a concept map to address the
focus question, incorporating as many of the
ideas reflected in those words or phrases as
you can. (Other concepts may be added.)
Specifically, memex
• Vannevar Bush’s vision
– How far have we come?
– What did you notice about this article -- style or content
or background or anything else.
– Did the article suggest anything you would not want to
see happen?
Image source:
kelty.rice.edu/375/images/memex/camera.jpg
http://www.knowledgesearch.org/presentations/etcon/images/memex.gif
Some modern versions
• Gordon Bell and the Microsoft “My Life
Bits” project
• Walden’s Path at Texas A & M
MyLifeBits
• Gordon Bell and Microsoft
http://www.guardian.co.uk/science/story/0,3605,1674359,00.html
“Gordon Bell doesn't need to remember, but has no chance of
forgetting. At the age of 71, he is recording as much of his life as
modern technology will allow, storing it all on a vast database: a
digital facsimile of a life lived.
If he goes for a walk, a miniature camera that dangles from his
neck snaps pictures every minute or so, immediately committing
the scene to a memory built not of neurons but ones and
noughts. If he wanders into a cafe, sensors note the change in
light, the shift of temperature and squirrel the information away.
Conversations are recorded and steps logged thanks to a GPS
receiver carried with him.”
This article is now a few years old. Look for an
update on this project and report next class.
Related work
• Walden’s Path
– http://www.csdl.tamu.edu/walden/
– System used by itself or as a service within a
digital library
– Allows a user to make a path through a set of
related resources and save the path for reuse at a
later time.
• Used to allow a teacher to “blaze a trail” through a
collection of materials to help students find their way from
a starting point to a goal.
• Also for recording personal trips through a collection of
material to be revisited.
Reviewing the 5 S model
• Last week
– Looked at what a library is and introduced the 5S
model
• Information resources, including digital
libraries, are very complex systems.
– The 5S model helps to capture the essence of the
system and give special attention to specific areas
– The model also allows developers of digital
libraries to have a check list of areas to consider
and develop well.
– Let’s review the 5 S model
The 5S model
• Streams
– The flow of information in various formats
• Structures
– Organizational aspects of the DL
• Spaces
– Views of components; real or abstract images
• Scenarios
– Services and behaviors
• Societies
– Communities and relationships among them
5S summary
Model
Primitives
Formalisms
Objectives
Stream
Text; video, audio,
software program
Sequences, types
Describes properties of the DL
content, encoding and textual
material or particular forms of
multimedia data.
Structure
Collection, catalog;
hypertext; document;
metadata;
organizational tools
Graphs; nodes; links;
labels; hierarchies
Specifies organizational aspects
of the DL content
Space
User Interface;
index; retrieval
model
Sets; operations; vector Defines logical and
space; measure space; presentational views of several
probability space
DL components
Scenarios
Service, event;
condition; action
Sequence diagrams;
collaboration diagrams
Details the behavior of DL
services
Societies
Community;
managers; actors;
classes;
relationships;
attributes; operators
Object-oriented
modeling constructs;
design patterns
Defines managers responsible
for running DL services; actors
that use those services, and
relationships among them
Source: http://www.dlib.vt.edu/projects/5S-Model/
Recall the application of the 5 S
model to the Etana DL for archeology
Scenario
model
Society model
Archaeologist
General public
Services
Value added
Service Manager
Domain specific
Space model
Geographic space
Structure
model
Region
Stream
model
User interface
Text
*Partition
Video
Information Satisfaction
Metric space
Metadata
*Site
Repository building
*Sub-partition
Audio
Taxonomies
Spatial
Temporal
Artifact-specific
*Locus
Drawing
*Container
Photo
*Artifact
3D
Source: E. A. Fox http://feathers.dlib.vt.edu/
A ‘hands-on’ exercise
• Let’s look at a publically available digital
library and construct a 5 S diagram to
define its design.
• (This is an existing library; we are not
deciding how we would construct it. We
are trying to identify its design features.
We may decide that we would have
designed it differently.)
http:// www.geocaching.com
5S analysis template
Society model
Space model
Structure model
Stream model
Scenario model
Fill in the template
• For the geocaching.com library, fill in
the template.
• Work in groups again.
• We will compare the results
Getting ready for projects
• What are the interests? Let’s brainstorm
about possible projects.
• Note – there are two stages
– A basic digital library design and
implementation. Everyone does this – in
teams or alone
– A project for most of the semester.
• This can be an extension of the initial DL or a new
DL or some other digital library relevant project.
• Initial project plan is due the class after
Labor Day. You can take a bit longer to
decide on your big project.
Applying the model, informally
Choose a subject area – then answer the questions
• Stream - what types of data? gif, jpg, avi?
• Structure - How are the elements organized? Is
there a hierarchy? Are there multiple structures?
• Spaces - How will we index the items? How will
we divide them into related groups
• Scenarios - what services will we provide? What
information do we need to provide those services?
• Societies - who is the library intended to serve?
Remember to include agents and other processes
as well as users.
This is the first deliverable for your first project.
Projects in our DL laboratory
• Mendel 289 is the center of activity for
projects related to digital libraries and
similar projects.
• Summary of the projects under way, which
may present opportunities for class
projects or for independent study
• NSDL, CITIDEL, CSTA, Ensemble,
Distributed Expertise, Computing Ontology
and its relationship to the libraries ….
Our systems
• Still under construction, but likely to be
– Several linux machines, remotely accessible
– Bare machines with just basic system
– We will install apache and the rest of the web
infrastructure, as well as the DL software.
• If you have a computer of your own and want to
use it,
– Fine, but you must be able to demonstrate it to the
class at the end of the semester. I will need to be
able to see what you are doing from time to time
during the semester.
Summary - Week 2
• Further developed our understanding of
concept maps
• Explored the vision of Vannevar Bush
• Applied the 5S model to an existing Digital
Library
• Began planning for the first DL project
• Learned about existing projects that may
provide ideas for class or independent
study projects.