Workshop on Internet-Scale Software Technologies (TWIST 2000 ) Richard N. Taylor, Director Institute for Software Research University of California, Irvine

Brought to you by… zUCI’s Institute for Software Research zand our corporate sponsors… z… whose support we greatly appreciate

UCI-ISR’s Mission Established 7/1/99, ISR is dedicated to: zFostering innovative basic and applied research in software and information technologies, zWorking with start-ups, established companies, government agencies, and standards bodies to develop and transition technologies to widespread and practical application,

Mission, cont. zEducating the next generation of software researchers and practitioners in advanced software technologies, zSupporting the public service mission of the University of California in developing the economic basis of the State of California.

zTWIST 2000: ”Organizational and Technical Issues in the Tension Between Centralized and Decentralized Applications on the Internet” zTWIST 99: Internet-scale Namespaces, August 19-20, 1999 zThe Workshop on Internet-Scale Event Notification, (WISEN), July 13-14, 1998

Centralization zCan centralized applications continue to scale with the growth of Internet users, traffic, types of services, and customer base? zCan existing centralized approaches continue to grow unabated, or will they reach hard limits? zIf they can grow unabated, then how can this be accomplished and how does it impact decentralized application architecture and development?

Distribution zAt what levels of an application's design should distribution be employed? zWhat are the key distinguishing characteristics of services (applications) for which centralized architectures (exploiting Moore's Law) will continue to suffice? zUnder what circumstances are decentralized architectures superior? Necessary?

Axes of Influence zEconomic and business models. zTrust. zRobustness/fault-tolerance. zScale. zProblem characteristics. zDemocratization.

Organization zSessions begin with presentations, followed by extensive discussion time zClosing session focused on coalescing results and setting agendas for the future zBut first… introductions