The patient data is time tagged and maintained in a history file, which can be used to detect trends and support other time dependent diagnoses.
Candidate diagnoses, such as congestive heart failure and general septicemia.
Treatment actions, such as antibiotics, vasodilators, and analgesics. The aforementioned data collection classes are represented as buttons. For example in Fig. 3. the examination button has been pressed bringing up the systems menu from which the user has selected the cardiovascular system. The required objects are then selected to enter their respective values. Every data object added to the patient model is time stamped to take account of its recency at the time of diagnosis, and to identify the trend of the sign or symptom.