Use cases and examples

We’ll look at the earlier examples of business rules to determine discount on tickets and implement them with the tools we have under our belt.

The following factset with part persons: $FS_{persons}$ is used again.

name	hair	weight	age	gender	member
Homer	short	250	36	male	false
Marge	long	150	35	female	false
Bart	short	90	10	male	false
Lisa	middle	78	8	female	false
Maggie	middle	20	1	female	false
Abe	short	170	70	male	false
Selma	long	160	41	female	true
Otto	long	180	38	male	false
Krusty	middle	200	45	male	true

warning

TODO

The engine checks if both conditions are true, and if so, applies the discount.

members = getpart("persons") ; filter (member == true)
discount = returnif( getpart("members"), const({factor: 0.15})) ; const({factor: 0.0})

Rule: If the group consists of more than 2 members, all persons younger than 12 years get 50% off.

The engine checks the group of people, finds the kids if there are any, and and if so, applies the discount.

Rule: If there is Family Discount use that, otherwise consider the personal discount. If both don’t hold, give 5% discount on week days.

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