For the development of complex AAL-Environments comprising multiple subsystems and assistance technologies new development methods are required exceeding the application scope of architectural methods of space development and methods of barrier-free architecture. In this paper we present the results of a study on the applicability of a product development method which has been based on functional process analysis and individual process modification. The experimental approach was able to generate interesting findings and showed that in environments assisting needy and counterbalancing disabilities a process-oriented organization outperforms the traditional typological organization of living environments.
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