Walter Zimmer

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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)
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)
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