Variables are the properties or characteristics defined within a type. Variables can hold different types of data and can be calculated from other values.
Variable Domains and Domain Restrictions
A variable can have a fixed domain that defines a set of permitted values. You can specify the domain as a list of discrete values, a continuous range, or a combination.
Variables support multiple data types including boolean, date, decimal, and so on. Variables without a domain definition may remain unbound, leading to errors.
Mathematical Functions (Numerical Derivation)
Mathematical functions and operators are used to calculate derived values based on arithmetic relationships between variables.
String Variable Functions and Operators
Constraint Modeling Language (CML) provides string manipulation and conversion functions, and string comparison and validation operators.
You can annotate variables with properties such as configurable, defaultValue, domainComputation, and relatedAttributes.
External variables are global Constraint Modeling Language (CML) variables defined within a virtual CML type.
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