This book constitutes the thoroughly refereed post-conference proceedings of the 7th IFIP TC 6 International Workshop on Self-Organizing Systems, IWSOS 2013, held in Palma de Mallorca, Spain, in May 2013.The 11 revised full papers and 9 short papers presented were carefully selected from 35 paper submissions. The papers are organized in following topics: design and analysis of self-organizing and self-managing systems, inspiring models of self-organization in nature and society, structure, characteristics, and dynamics of self-organizing networks, self-organization in techno-social systems, self-organized social computation, and self-organized communication systems.

Automated Trading for Smart Grids: Can It Work?.- A Semantic-Based Algorithm for Data Dissemination in Opportunistic Networks.- Characteristic Analysis of Response Threshold Model and Its Application for Self-organizing Network Control.- Emergence of Global Speed Patterns in a Traffic Scenario.- On the Efficiency of Information-Assisted Search for Parking Space: A Game-Theoretic Approach.- The Relative Disagreement Model of Opinion Dynamics: Where Do Extremists Come From?.- Modeling the Emergence of a New Language: Naming Game with Hybridization.- Trust-Based Scenarios - Predicting Future Agent Behavior in Open Self-organizing Systems.- Addressing Phase Transitions in Wireless Networking Optimization.- On the Local Approximations of Node Centrality in Internet Router-Level Topologies.- Modelling Critical Node Attacks in MANETs.- Evolution as a Tool to Design Self-organizing Systems.- Self-organization Promotes the Evolution of Cooperation with Cultural Propagation.- Not All Paths Lead to Rome: Analysing the Network of Sister Cities.- A Hybrid Threat Detection and Security Adaptation System for Industrial Wireless Sensor Networks.- Mapping of Self-organization Properties and Non-functional Requirements in Smart Grids.- A Self-organising Approach for Smart Meter Communication Systems.- Unifying Sensor Fault Detection with Energy Conservation.- Towards a Distributed, Self-organising Approach to Malware Detection in Cloud Computing.- Demand Response by Decentralized Device Control Based on Voltage Level.