Supported uses of calculation expressions

To make our examples more interesting and allow for a bit more complexity in our rules, we have extended the basic Tutorial Vocabulary (Cargo.ecore) to include a few more attributes. The extended Vocabulary is shown below:

Table 9. Table: Table of New Attributes Added to the Basic Tutorial Vocabulary
Attribute	Data type	Description
Aircraft.emptyWeight	Decimal	The weight of an Aircraft with no fuel or cargo onboard.(kilograms)
Aircraft.grossWeight	Decimal	The maximum amount of weight an Aircraft can safely lift, equal to the sum of cargo and fuel weights. (kilograms)
Aircraft.maxfuel	Decimal	The maximum amount of fuel an Aircraft can carry. (liters)
Cargo.footprint	Decimal	The floor space required for this Cargo. (square meters)
FlightPlan.approved	Boolean	Indicates whether the FlightPlan has been approved or cleared for operation.
FlightPlan.planWeight	Decimal	The total amount of all Aircraft and Cargo weights for this FlightPlan. (kilograms)
FlightPlan.flightRange	Decimal	The distance the Aircraft is expected to fly. (kilometers)
FlightPlan.fuel	Decimal	The amount of fuel actually loaded on the Aircraft assigned to this FlightPlan. (liters)