Service-Oriented Systems & Self-Adaptive Software S-Cube - PowerPoint PPT Presentation

Service-Oriented Systems & Self-Adaptive Software S-Cube Research Roadmap Workshop on Service- oriented Systems. 22.11.2011. Barcelona, Spain Holger Giese System Analysis & Modeling Group, Hasso Plattner Institute for Software Systems Engineering at the University of Potsdam, Germany holger.giese@hpi.uni-potsdam.de

Challenge 2 Some open issues: Self-Adaptive Service- ■ How to meaningful oriented Software equals control at runtime open , evolving systems of open the self-adaptation systems . of choreographies and orchestrations? How can we enable ■ How to exclude trus ustwor orthy hy self- unwanted co- adaptation races or adaptation and evolution other anomalies in for Service-oriented open service- oriented systems? Systems? Holger Giese | Service-Oriented Systems & Self-Adaptive Software

Self-Adaptation & Choreographies 3 http://www.railcab.de/ Test track Test shuttle A trus ustwor orthy hy choreography for a convoy of shuttles: ! Adaptation capabilities are captured by role contracts ! Convoy choreography requires good knowledge about subsystems ! Choreography protocol is designed/verified completely upfront A shuttle system that builds convoys Missing: full heterogeneity, openness, evolution of the protocol, … to optimize the energy consumption Other cases: competing at switches, compete for passengers, … Holger Giese | Service-Oriented Systems & Self-Adaptive Software

Self-Adaptation & Choreographies 4 A trus ustwor orthy hy choreography for self-optimization: ! Distributed learning of a model of the track (context) ! Local learning of a model of the shuttle (self!) ! Planning an adaptation in form of an optimal trajectory ! Trajectory synthesis & backup establishes assurance Missing: full heterogeneity, competing scheme, … Holger Giese | Service-Oriented Systems & Self-Adaptive Software Sven Burmester and Holger Giese and Eckehard Münch and Oliver Oberschelp and Florian Klein and Peter Scheideler,. Tool Support for the Design of Self-Optimizing Mechatronic Multi-Agent Systems , International Journal on Software Tools for Technology Transfer (STTT) 10 (3), 207-222, 2008.

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Self-Adaptation & Orchestration 6 A trus ustwor orthy hy orchestration of subordinated OCMs: ! Supervising OCM coordinate offered adaptation contracts of subordinated OCMs ! Supervising OCM sets goals for subordinated OCMs that locally adapt accordingly ! Orchestration behavior is designed/verified completely upfront Missing: openness?, upward goal propagation, … Holger Giese | Service-Oriented Systems & Self-Adaptive Software