POSitivity
POSitivity was conceived as a complete redesign of a restaurant "POS" (Point-of-Sale) system. Using the methodology championed by Kim Goodwin in Designing for the Digital Age, as well as her forerunners Cooper et al. in About Face, I completed the system design process end-to-end in an attempt to revive the stagnant design stylings of today's POSs (no pun intended).

The interface customized for a server can be seen below (accessed through the common login screen above):
A bartender's view of POSitivity, including a "Tab Finder" feature customized especially for the needs of today's busy mixologist:
A manager needs to see an almost entirely different set of functions, each of which could be a deep exploration into usability on their own. This is how persona Ron sees POSitivity upon login:
While these images offer a glimpse at the final results of this process, the entirety of the project is documented in the PDF embedded below, and I would be happy to answer questions!
POSitivity
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