Stateful Decision Models

Recently I viewed a DecisionCamp presentation on an application of DMN to a public-facing portal in the Netherlands for what we call in the USA building permits. Here is the link. The scope of the project is impressive, combining regulations defined at the national, provincial, and municipal level, plus those of special districts. The ultimate decision on what kind of permit is required depends on not only the location of the property but the nature of the property improvement.