Looking Back, Looking forward

The process of designing things in a very large space


Tim Berners-Lee

MIT Computer Science & Artificial Intelligence Laboratory (CSAIL)

University of Southampton School of Electronics and Computer Science

This talk

Philosophical Engineering

Designing a system...

process of web science

involves social conventions too.

process of web science

Microscopic system

process of web science

Macroscopic effect

process of web science

Analyse the result

process of web science

Is this what we want?

process of web science

The process of web science

process of web science

Science and engineering

process of web science


process of web science magic = stuff you don't understand

More magic

magic = stuff you don't understand yet process of web science

Second guessing

Second guessing

For example...

process of web science


process of web science


process of web science: WWW

Web essential: Universality

Web essential: Layering

Building on WWW: Google

process of web science


process of web science: wikipedia


Semantic Web

process of web science

SW: Everything has a URI

Don't say "colour" say <http://example.com/2002/std6#col>

Semantic Web Technical

architectural layers

The element of the Semantic Web

arrow tail, body and head are l are subject, property and value.

Semantic web includes tables,...

Arrows can make a table, an arrow from each row to each value


Arrows can make a table, an arrow from each row to each value

... everything

Arrows can make a table, an arrow from each row to each value

Shapes of data

The shape of the web

Society includes communities on many scales

Universal WWW must include communities on many scales

Applications connected by concepts

Its like a metro, the way the lines of common concepts
connect the stations of different applications

For example in biopax

Venn diagram showing ontologies overlapping by certain common terms

[Diagram: Joanne Luciano, Predictive Medicine; Drug discovery demo using RDF, Siderian Seamark and Oracle 10g]

Fractal Web of concepts

The semantic web is about allowing data systems to change by evolution, not revolution

The fractal tangle

Total Cost of Ontologies (TCO)

Assume :-) ontologies evenly spread across orders of magnitude; committee  size as log(community), time as committee^2, cost shared across community.
Scale Eg Committee size Cost per ontology (weeks) My share of cost
0 Me 1 1 1
10 My team 4 16 1.6
100 Group 7 49 0.49
1000 10 100 0.10
10k Enterprise 13 169 0.017
100k Business area 16 256 0.0026
1M 19 361 0.00036
10M 22 484 0.000048
100M National, State 25 625 0.000006
1G EU, US 28 784 0.000001
10G Planet 31 961 0.000000

Total cost of 10 ontologies: 3.2 weeks. Serious project: 30 ontologies, TCO = 10 weeks.
Lesson: Do your bit. Others will do theirs.
Thank those who do working groups!

Web science - challenges

process of web science

User Interface challenges

Domain-specific user interfaces are blossoming... but what about generic ones?

Data policy challenges


Challenge: New devices

See W3C Mobile Web Initiative

Challenge: Intercreativity

Web Science: multidisciplinary

Web Science Research Initiative


Thank You


WSRI: webscience.org

W3C w3.org

Thank you for your attention