Providing operational support to clinicians during their daily activities in hospital wards is a challenge for information technologies. In particular, any possible solution should provide usable user interfaces, possibly deployed on mobile devices, and should be able to enact and monitor the execution of clinical guidelines. To tackle this issue, in this paper we present a medical system that supports clinicians in the management of clinical guidelines. The system exploits concepts from

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... s Process Management (BPM) and Service Oriented Computing (SOC) on how to organize clinical guidelines in the healthcare context and how to support the automation of their execution. As a viable solution for clinicians' interaction with the system, we investigated the use of vocal and touch interfaces. Usability evaluation results indicate the feasibility of the approach.