Self-Organizing Architectures SOAR 2010 International Conference on Autonomic Computing and Communication, ICAC Washington DC, USA June 7, 2010

Overview Goals of the workshop Schedule Breakout session 2

Goals of the workshop SOAR 2009 Goals SOAR

Self-Adaptive Systems Community Self- Organizing Architectures Self-Organizing/ Multi-Agent Systems Community

SOAR 2009 “The objective of the first SOAR was mainly EXPLORING the middle ground between the self-adaptive and self-organizing perspective At least we have put the first bricks of the bridge!” 5 Analysis Monitoring Planning Executing Local Models Coordination Application Analysis Monitoring Planning Executing Local Models Coordination Application

Since SOAR 2009 Book “Self-Organizing Architectures” LNCS vol ▫ 13 papers (incl. 4 invited papers) ▫ Self-adaptive approaches; self-organizing approaches; hybrid approaches Reference model self-adaptive systems (ICAC 2010) ▫ Three perspectives so far:  Reflection perspective  MAPE perspective  Distributed coordination perspective ▫ Formally specified in Z 6

Goals SOAR 2010 Continue the work on the bridge ▫ To better understand how principles from self-organizing/agent- based systems can be utilized to engineer decentralized self- adaptive systems ▫ To better understand how principles from self-adaptive systems can be utilized in engineering self-organizing/agent-based systems ▫ To explore potential synergy  Combine scalability, robustness, resilience... from self-organizing with separation of concerns, engineering principles, guarentees of system behavior,… from self-adaptation 7

Node Network Adaptation logic for performance Domain logic (existing system) Software elementsHardware elements Constraint: only partial knowledge on nodes Design a self-organizing architecture for achieving certain objective (e.g. performance improvement, fault tolerance) Today’s challenge

Schedule 9:15AM – 10:05AM: Keynote Jeff Kephart 10:05AM – 11:30AM: Engineering Self-Organizing Architectures 10:30AM – 11:00AM: BREAK 11:30AM – 12:30AM: Coordination 12:30AM – 2:00PM: LUNCH 2:00PM – 2:50PM: Engineering Self-Organizing Architectures II 2:50PM – 4:00PM: Breakout sessions 4:00AM – 4:30AM: BREAK 4:30AM –5:30AM: Plenary discussion & conclusion 9

Breakout Session

Organization Forming groups ▫ 5 people, preferable different background Discussions Plenary Presentations

Node Network Adaptation logic for performance Domain logic (existing system) Software elementsHardware elements Constraint: only partial knowledge on nodes Design a self-organizing architecture for achieving certain objective (e.g. performance improvement, fault tolerance) Today’s challenge

Guiding questions What are the elements of your design? How do you deal with conflicts between the two concerns? What kind of coordination mechanism(s) have you used? What kind of information do nodes have to exchange? What are the guarentees does your solution provides?