Directions and Parking
Software Research (ISR)
attendance list is now available.
The goal of TWIST 2000 is to substantively explore design tensions between
centralizing and decentralizing forces on the Internet, the pros and cons
of centralized and decentralized architectures, and the long term implications
which lead architects to design one way or the other.
Many of the most successful applications on the Internet today are architecturally
centralized. Among these are eBay, AOL, and Amazon.com. The success of
these centralized architectures is surprising to some, given the fundamentally
decentralized way the Internet itself and the World Wide Web work.
Alternatively, many companies and research projects have advocated decentralized
applications. Such applications are touted as having the advantages of
robustness, scalability based upon replication (rather than just raw speed),
resource sharing, and ability to span trust domains. Applications of the
decentralized approach include SETI@Home (parallel scientific computing)
and the Air Traffic Control system (distributed command and control).
Many applications employ a mixed strategy, including financial trading
and email. Consider how Travelocity, for example, is implemented as a
decentralized Web application wrapping the centralized Sabre reservations
service. Other applications exhibit both strategies depending on the layer
of abstraction considered: the Domain Name Service is a centralized monopoly
of names in a decentralized database, or how Akamai appears as a single
global Web cache to a browser but internally relies on globally distributed
servers, or eBay, a centralized service enabling wildly decentralized
We seek answers to such questions as:
- Can centralized applications continue to scale with the growth of
Internet users, traffic, types of services, and customer base?
- Can existing centralized approaches continue to grow unabated, or
will they reach hard limits?
- If they can grow unabated, then how can this be accomplished and how
does it impact decentralized application architecture and development?
Issues to consider include:
- At what levels of an application's design should distribution be employed?
- What are the key distinguishing characteristics of services (applications)
for which centralized architectures (exploiting Moore's Law) will continue
- Under what circumstances are decentralized architectures superior?
- What sort of application spaces do applications such as Internet phones/smartphones
Axes of influence include:
- Economic and business models.
- Problem characteristics.
- Democratization. Participants often vote their resources by deciding
to share information or compute cycles.
- Nasser Barghouti, ONEWORLD
Software Solutions, email@example.com
- Adam L. Beberg,
Mithral Communications & Design, Inc., The
Cosm Project, firstname.lastname@example.org
- Gregory Alan Bolcer, Founder and CTO, Endeavors
Technology, Inc., email@example.com
- George H. Brett II,
Senior Project Coordinator, NLANR/DAST
NCSA ACCESS, firstname.lastname@example.org
- Mark Stuart Day, Senior Scientist, Cisco Systems, email@example.com
Devanbu, University of California, Davis, firstname.lastname@example.org
- Lucas Gonze,
Gonze Engineering, Inc., email@example.com
- Adriana Iamnitchi,
University of Chicago, firstname.lastname@example.org
King, Dean, School of Information,
University of Michigan, email@example.com
- Alvina Nishimoto, R&D Program Manager, Hewlett-Packard,
- Edith H. Stern, Manager, Business Integration Technologies,
IBM Research, firstname.lastname@example.org
- Dawit Yimam,
GMD - German National Research Center for
- Eric Yu, University
of Toronto, email@example.com
Attendance at the workshop was by invitation only, based on submission
of an informal statement of interests.
A list of TWIST 2000 attendees is available.
The workshop organizers will produce a report subsequent to the workshop
which wil be submitted for widespread publication. A proceedings will
not be produced.
TWIST Workshop Series
TWIST 2000 is the third workshop in the annual TWIST
99 focused on Internet-scale Namespaces. WISEN
98 focused on Internet-scale Event Notification.
TWIST 2000 URL: