Walter Zimmer

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Coherent design is a design method for object-oriented software development. It reconciles the requirements of extensibility, comprehensibility, and efficiency for designing reusable libraries. It does so by applying the following principles: separation of behaviour and implementation, compatibility relationships between classes, and conceptual abstraction.(More)
Security and usability are difficult to achieve simultaneously. As upcoming ubiquitous scenarios focus on usability, new security solutions are in high demand. We are following two approaches: " Inheritable Trust " which is an intuitive way of expressing and enforcing trust in a ubiquitous environment, and " Dynamic Trust Networks " which perhaps provide a(More)
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