The aim of this research is to develop a flexible reasoning support environment (cyberspace) that can perceive, reason and act to achieve multiple goals under dynamic, uncertain and complex conditions found in information systems. Current information system architectures are too rigid to cope with heterogeneity, inaccuracy and inflexibility of the real world requirements. In order to overcome such limitations we propose a distributed multiagent software architecture for flexible intelligent information systems with the following goals: (a) Construct a framework for the development of agent-oriented systems in distributed environment called ADIPS, as an infrastructure and two classes of systems are built on it, and (b) develop a reasoning support environment called cyber-office.