e3value user manual, first release

5.4 Quantifying or-dependencies

Each disjunct of an or-dependency has a ratio, which is used to compute the number of occurrences of a disjunct in a market scenario.

Going along the dependency path from the customer need to the boundary elements in figure 5.1, we encounter first an or-split and then an or-join. At the or-split, the 10 consumer needs are split equally over the two choices. So in this scenario, 5 times the Traveler buys a Train trip without food, and 5 times the Traveler buys a trip with food.

The ratios of the disjuncts of the or-join must match the number of occurrences that enter the join.