Peter F. Elzer

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This thesis describes the development of Usher, an Augmented Reality user interface for an Internet telerobot. Its construction principle is to overlay multiple monoscopic images of the robot's environment with a three-dimensional stick figure visualization of the robot's 5 degrees of freedom. The operator manipulates the elements of this visualization with(More)
Long-term usability of software systems is becoming an economically relevant issue. In particular it is important to assess it at an early stage in the development process. In this paper a method for such an assessment is proposed. It is based upon the calculation of a "long-term-useability-index" from a number of defined properties of the modules of the(More)