We sketch the fundamental properties and features of Snoopy, a tool to model and execute (animate, simulate) hierarchical graph-based system descriptions. The tool comes along wit...
Security and trust are two properties of modern computing systems that are the focus of much recent interest. They play an increasingly significant role in the requirements for mo...
Abstract. We present a service-oriented personalization system, set in an educational framework, based on a semantic annotation of courses, given at a knowledge level (what the cou...
Requirements models for large systems typically cannot be developed in a single step, but evolve in a sequence of iterations. We have developed such an iterative modeling process ...
Validation is critically important when human performance models are used to predict the effect of future system designs on human performance. A model of flight deck operations was...
Brian F. Gore, Becky L. Hooey, Nancy Haan, Deborah...