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Traditional methodologies for Software development life cycle such as the Unified Process or the Object Oriented Process, Environment and Notation (OPEN) are proven to be flexible and robust for developing traditional Information Systems. However in the new SOC (Service Oriented Computing) paradigm large systems emerge comprised of self contained building blocks: the services, which can be combined to form complex business processes located in different servers and companies, where users may customize and create their services dynamically and negotiate Service Level Agreements electronically. In such systems the traditional software development methodologies are simply inefficient. This paper presents the FUSE approach which provides a methodology and a framework to be used both by the IT industry and individuals with little or no IT-experience, such as specific domain experts, end users, testers and community members. This will support their common efforts in the efficient development of more reliable Service Oriented systems of the future. FUSE Framework is based and makes use of the Unified Process, OPEN, extended participatory design (PD) and other similar methodologies. [ABSTRACT FROM AUTHOR]