Diagnostic decision-making is not a simple task in medicine. The proposition and confirmation of a diagnosis must take into account the patient’s clinical parameters, the clinical context and the physician’s medical knowledge. Physicians use more than one million pieces of information in the care of their patients  and almost one third of their time is spent recording and compiling information . Unsurprisingly, physicians may be unable to recall every item of relevant knowledge and to relate all these items to the care process . Clinical decision support systems (CDSS) have been developed to improve patient safety and care processes [4,5]. Several studies and reviews have shown these tools to be effective [6-9] in the areas of diagnosis and treatment.