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The Interactive Ward Round Table: A Cognitive User Interface for Multi-Touch Tables to Support Clinical Diagnosis

With the Interactive Ward Round Table, we developed an advanced prototype of a patient record system for multi-touch tables that is aimed to support clinicians in making diagnoses. This is a complex task that requires clinicians to integrate critical information across multiple medical documents. The incorporated features of our user interface (UI) are thus based on research findings on how readers construct an integrated understanding from multiple documents. Specifically, previous psychological and human-computer interaction research suggests that readers’ integrated understanding can be supported by facilitating comparison and corroboration of information across documents. Because the features of the UI are aimed to support these cognitive processes, we refer to it as a cognitive UI. In this paper, we motivate the core features of the UI, namely (1) a simultaneous presentation of multiple documents on screen, (2) relevance marking of full documents or text within a document (i.e., highlighting), (3) an interactive timeline enabling temporal filtering of documents, (4) a keyword search, (5) categorical filtering of documents, and (6) notifications of newly added documents. Further, we present a user study with N = 11 clinicians, which indicates a greater satisfaction with and better usability of the Ward Round Table compared to their system currently in use. Finally, we discuss additional qualitative results of the user study and possible implications for UIs used in hospitals. (Abstract)