PROforma supports decision-making through a mechanism for generating arguments for or against a given candidate. When a decision is enacted, the condition and the support properties of the argument are used to determine the effect of each argument and in turn the net support for a given candidate. A recommendation rule is then used to determine whether or not a particular candidate is recommended.
To add arguments for (or against) a candidate, select the Arguments tab.
The top drop-down box contains a list of the decision’s candidates. Select the candidate for which you want to define arguments, and enter the following information:
|Description||A text string displayed to the end-user during enactment (to represent the argument, e.g.: Blood pressure is lower than 120). If there is no description, the condition is displayed instead.
Note: The Dynamic checkbox should be checked if the description contains data items to be evaluated and displayed at runtime.
|Condition||A truth-valued expression that represents the circumstances under which the argument applies (e.g.: blood_pressure < 120)|
|Support||The support that the argument offers if the condition is true. The four categories of symbolic support are:
When all the data is entered, click Add.
The new argument will be added to the Arguments list.