# Design

We are going to divide our rules in 5 steps and do a rule-flow which mean a process : 1. init step : we shall determine the age of each person and the person has his birthday based on the quoting date. 2. standard price : as we have the table with all prices, we shall make a decision table of it. 3. Promotion : if there are more that 4 persons and the youngest is between 3 and 18 years old 4. Reduction : birthday and If people are living in Zurich 5. Calculate the total

The data model we are going to use is as follows :

![](/files/-M-FWd8O55OOYNsmCm8I)


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