SOFTWARE-BASED SYSTEM USABILITY EVALUATION FOR PROJECT54-EQUIPPED POLICE CRUISERS

This paper examines the use of log files and post-processing techniques to quantify how police officers utilize the Project54 system. Project54 is a software-based package designed to integrate off-the-shelf electronic components commonly found within police cruisers. This system allows police officers to interact with the in-vehicle devices using either speech commands or a touch-screen graphical user interface, while still being able to utilize each device’s original hardware controls. The collected in-car data will be a valuable tool for guiding future Project54 development, including context-cue recognition from the logged human-computer interaction information. Preliminary results are presented from a testing environment. 1