We propose a technique based on human-performance models to evaluate the efficiency of shared workspaces, where individual and collaborative actions are intertwined. We apply the technique to an illustrative case and report that it: 1) facilitates the fine-grained analysis of workspace collaboration; 2) provides time predictions about collaborative actions; and 3) enables quantitative comparisons of alternative designs via multi-dimensional team performance estimates. The technique may be used

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... o complement existing practice and knowledge with the ability to make quick measurements and calculations without users or functional prototypes, thereby enabling faster design iterations. Ferreira, A. and P. Antunes (forthcoming) A