Tallis Training


The Hypertension sample models simplified segments of a Hypertension guideline (The Sixth Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure). The modeled segments assists clinicians in determining which drug to add when a patient is not at the goal blood pressure, the response to the initial drug choice for hypertension is inadequate after reaching the full dose, and the patient is tolerating the first choice well; and in determining the blood pressure goal.

Have a look at this sample to get a better idea of how to use PROforma to:

  • Collect data
  • Make decisions
  • Order tasks so that they run consecutively
  • Invoke tasks or prevent tasks from running if certain conditions are met
  • Re-run a task until a certain condition is met
  • Perform tasks in the background
  • Modify variables in the background

Key Features

  • Run or discard tasks (Precondition)
  • Decision making (Candidate Priority; numeric support)
  • Cyclic tasks (Cycle until)
  • Automatic tasks (Automatic = true)
  • Optional data items (Status = Optional)
  • Value assignment (Postcondition)


If you have installed the Tallis Toolset, you can find this sample in the World > Samples folder in the ACL Web Repository.

Run this sample file

Click her for information about using the web enactment application.

Click here for a detailed description of this sample.

This model is based on a model that was created as part of a study comparing six computer-interpretable guideline models (Peleg M, Tu S, Bury J, Ciccarese P, Fox J, Greenes RA, Hall R, Johnson PD, Jones N, Kumar A, Miksch S, Quaglini S, Seyfang A, Shortliffe EH, Stefanelli M. Comparing computer-interpretable guideline models: a case-study approach. J Am Med Inform Assoc. 2003 Jan-Feb;10(1):52-68.)


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