Propositions {preference rule} {preference condition} can have conditionals and conclusion.
conditionals
Conditionals are positive or negative statements. Conditionals can link by conjunction or disjunction.
process
Systems can have preference-rule sequences. Systems test preference rules in sequence and perform first satisfied rule. If system satisfies conditions, preference rule applies, conclusion is true, and action starts. If any condition is not true, or if information is lacking for one or more conditionals, preference rule does not apply, and system tests next proposition. If no preference rule applies, system uses default action.
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Date Modified: 2022.0224