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Application Development for the Distributed Enterprise (ADDE) is a methodological set that supports design of distributed business processes and ICT systems. ADDE provides a guide, a repository and supporting software tools, an underlying meta‐model, based on UML, that may be used in developing further software tools, or adapting existing tools to work with the ADDE repository. The main principles that have driven the authors’ approach to distributed system design are presented. These principles are the focus on distribution issues, the separation of organisational and technical issues, the emphasis on the design process as a decision process, the notion of technological services and the method independence of the guidance. Following this, the guidance on the definition and planning of the application development will be introduced. A presentation of the guidance on distributed application design, as well as the concepts of macro and micro decisions follows. Finally, the future work of the ADDE project will be outlined.