This volume contains papers read at the 7th International Workshop entitled "Intelligent Agents: Decision-Support and Planning", Udine, Italy, Sep 30th - Oct 2nd, 2004. All papers were reviewed after they were presented, and revised for final publication. As its preceding ones, this workshop took place under the auspices of the International School for the Synthesis of Expert Knowledge (ISSEK) and was held in the picturesque Palazzo del Torso of the Centre International des Sciences Mecaniques (CISM), Udine, see picture below. CISM location " Palazzo del Torso " The workshop was jointly organised by Prof. G. Delia Riccia (University of Udine), Dr. D. Dubois ( CNRS and University of Toulouse III), Prof. R. Kruse (University of Magdeburg), and Prof. H .- J. Lenz (Free University Berlin). As the workshop was an invitational one, there was no need for a call for contributed papers. Contrarily, the four organisers recruited research workers from Europe who have had an impact in the last decade on "Intelligent Agents: Decision-Support and Planning".

Making decisions from weighted arguments.- Qualitative Preference Modelling in Constraint Satisfaction.- MCDA - Multi-Criteria Decision Making in e-commerce.- Some Recent Results and Open Questions in Distributed Resource Allocation.- Logical representation of preference: a brief survey.- Possibility Theory and its Applications: a Retrospective and Prospective view.- Efficient computation of project characteristics in a series-parallel activity network with interval durations.- Graphical Models for Industrial Planning on Complex Domains.- On Markov decision models with an absorbing set.- Automated Behavior Modeling - Recognizing and Predicting Agent Behavior.- Features of Emotional Planning in Software Agents.