Introduction. Due to recent defense information superiority initiatives, intelligence assets have exponentially increased collection. Under the Maritime Domain Awareness (MDA) program, the Dynamic Enterprise Integration Platform (DEIP) has been created to mitigate this data overload and fuse several systems into a common interface. Practice Innovation. A recent human factors evaluation revealed concerns with the design of the DEIP Boolean Advanced Search Functionality. Users of DEIP appear to have difficulty constructing accurate queries. The goals of this study were to assess the accuracy of DEIP Advanced Search users and to determine the effectiveness of the addition of visible Boolean equations in the Advanced Search graphical user interface (GUI) header. Findings. Overall, expert users were 67% accurate using DEIP Advanced Search. Further, participants answered 74% of queries correctly without Boolean equations visible but only 57% correctly with equations visible. Discussion. Recommendations include additional usability testing, software design changes, improved feedback, and improved Boolean training.
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