March 22 – 27 , 2015, Dagstuhl Seminar 15131

Normative Multi-Agent Systems


Amit K. Chopra (Lancaster University, GB)
Leon van der Torre (University of Luxembourg, LU)
Harko Verhagen (Stockholm University, SE)
Serena Villata (INRIA Sophia Antipolis – Méditerranée, FR)

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Dagstuhl Report, Volume 5, Issue 3 Dagstuhl Report
Aims & Scope
List of Participants
Shared Documents
Dagstuhl Seminar Schedule [pdf]


The multi-disciplinary workshop on Normative Multi Agents attracted leading international scholars from different research fields (e.g., theoretical computer science, programming languages, cognitive sciences and social sciences). The workshop was organized as follows: the organizers identified three relevant themes of research covering a wide and comprehensive spectrum of topics in the filed of Normative Agents, namely Social Computing, Governance, and Agreement Technologies. In the months preceding the workshop the chairs collected material from the participants. During the first day each participant present herself to the audience, and the chairs introduced the goal of the seminar, i.e., writing an handbook of Normative Multiagent Systems based on the roadmap produced during the previous edition of the Seminar, and the discussions during the current one. The participants were divided in groups corresponding to the areas identified as relevant in the field of Normative Multiagent Systems. Four invited talks have been proposed by scholars from different areas in the field, targeting in particular the three themes of the Seminar and an overview about Normative Multiagent Systems. The format was well received by the participants and conducive to discussion. It gave them the opportunity to give very focused presentations while keeping the audience attention. During the morning sessions, we started with an invited talk and we continued with short presentations by the Seminar participants about their personal contribution to Normative Multi-Agents (plus some time for QA). The afternoon sessions, other the contrary, were dedicated to group work and group discussions. The aim of these sessions was to build consensus material of the specific topics and to identify fundamental research directions. The material is expected to be refined and to be articulated in chapters intended as a first step for the development for the handbook for this emerging area of computer-science with close interactions with other disciplines.


During the seminar, participants split in different working groups, centered around discussion themes relevant to NorMAS. Each working group was further divided into smaller working groups, each of which worked on specific topics. In the following paragraphs there is a summary of the discussion held by each working group.

Logic and reasoning. This theme included subgroups on topics such as deontic logic, argumentation, computation approaches, motivational attitudes, social games, and emotions.

Modeling. This theme included subgroups on issues such as taxonomies, law, conflicts, and norm dynamics.

Engineering. This theme included subgroups on themes such as interactions, agent programming, agent architecture, data-driven norms, institutions and technology, and reference architectures.

Simulation. This theme discussed issues of simulating multiagent systems to understand norm dynamics such as emergence and diffusion.

Applications. This theme included subgroups on killer applications for norms. Identified applications included governance, audit control, cybersecurity, jurisinformatics, and sociotechnical systems.

Each subgroup presented its findings twice to the entire seminar. Each subgroup identified past work, connections to other subgroups, and future work. Based on their presentations, we decided that each subgroup should write a chapter on its topic. This chapter will become part of a Handbook of Normative Multiagent Systems. This is in line with the roadmap produced during the previous edition of the Seminar and the discussions held during the present Seminar. The handbook will be an authoritative and detailed introduction for anyone seeking information on normative multiagent systems. The handbook will give a historical overview, present a survey of established techniques and open challenges, and discuss applications and directions. Our aim is to have to handbook sent for publication in a year's time. We already have a publisher lined up (College Publications).

  Creative Commons BY 3.0 Unported license
  Amit K. Chopra, Leon van der Torre, Harko Verhagen, and Serena Villata

Dagstuhl Seminar Series


  • Artificial Intelligence / Robotics
  • Modelling / Simulation
  • Society / Human-computer Interaction


  • Norms
  • Agents
  • Social computing
  • Agreement technology
  • Governance

Book exhibition

Books from the participants of the current Seminar 

Book exhibition in the library, ground floor, during the seminar week.


In the series Dagstuhl Reports each Dagstuhl Seminar and Dagstuhl Perspectives Workshop is documented. The seminar organizers, in cooperation with the collector, prepare a report that includes contributions from the participants' talks together with a summary of the seminar.


Download overview leaflet (PDF).


Furthermore, a comprehensive peer-reviewed collection of research papers can be published in the series Dagstuhl Follow-Ups.

Dagstuhl's Impact

Please inform us when a publication was published as a result from your seminar. These publications are listed in the category Dagstuhl's Impact and are presented on a special shelf on the ground floor of the library.