This book constitutes the thoroughly refereed post-proceedings of the 7th International Bi-Conference Workshop on Agent-Oriented Information Systems, AOIS 2005, held in Utrecht, Netherlands, in July 2005 and in Klagenfurt, Austria, in October 2005. The 19 revised full papers are organized in topical sections on agent behavior, communications and reasoning, methodologies and ontologies, agent-oriented software engineering, as well as applications.

Agent Behavior, Communications and Reasoning.- Automated Interpretation of Agent Behaviour.- A Semantic and Pragmatic Framework for the Specification of Agent Communication Languages: Motivational Attitudes and Norms.- Broadening the Semantic Coverage of Agent Communicative Acts.- Requirements Analysis of an Agent's Reasoning Capability.- On the Cost of Agent-Awareness for Negotiation Services.- OWL-P: A Methodology for Business Process Development.- Methodologies and Ontologies.- Identification of Reusable Method Fragments from the PASSI Agent-Oriented Methodology.- Foundations of Ontology-Based MAS Methodologies.- An Ontology-Driven Technique for the Architectural and Detailed Design of Multi-agent Frameworks.- An Ontology Support for Semantic Aware Agents.- Agent-Oriented Software Engineering.- AOSE and Organic Computing - How Can They Benefit from Each Other?.- An Agent-Oriented Model of a Dynamic Engineering Design Process.- Formalizing Agent-Oriented Enterprise Models.- Fragmented Workflows Supported by an Agent Based Architecture.- Applications.- An Agent-Based Meta-level Architecture for Strategic Reasoning in Naval Planning.- Coordination Efficiency in Rational Choice Theory, Norm and Rights Based Multi-agent Systems.- Adapted Information Retrieval in Web Information Systems Using PUMAS.- Design Options for Subscription Managers.- Supporting Program Indexing and Querying in Source Code Digital Libraries.