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A parameter is a specification of an argument used to pass information into or out of an invocation of a behavioral feature.
Constructs::Parameter merges the definitions of Parameter from Basic and Abstractions::BehavioralFeatures. It adds specializations
to TypedElement and MultiplicityElement.
A parameter is a kind of typed element in order to allow the specification of an optional multiplicity on parameters. In addition,
it supports the specification of an optional default value.
• “TypedElement? on page 131
• “MultiplicityElement? on page 129
• default: String [0..1] Specifies a String that represents a value to be used when no argument is supplied for the Parameter.
• direction: ParameterDirectionKind [1] Indicates whether a parameter is being sent into or out of a behavioral element. The default value is in.
• /operation: Operation[0..1] References the Operation for which this is a formal parameter. Subsets NamedElement::namespace
and redefines Basic::Parameter::operation.
No additional constraints
A parameter specifies how arguments are passed into or out of an invocation of a behavioral feature like an operation. The
type and multiplicity of a parameter restrict what values can be passed, how many, and whether the values are ordered.
If a default is specified for a parameter, then it is evaluated at invocation time and used as the argument for this parameter
if and only if no argument is supplied at invocation of the behavioral feature.
See Operation