Maximum nested state machines

Maximum nested SMs

Description

Maximum hierarchical levels of nested state machines. Parameter: maximum value (e.g.: ‘5’)

The rule parameter is an integer value describing the maximum authorized depth for nested state machines. Default value is 5.

Rationale

This enforces compliance with a specific modeling standard by placing an upper bound on the number of nested state machines.

Verification

This rule checks all state machines throughout the model. It retrieves the Number of nested state machines metric associated to each state machine.

The rule fails if the maximum number of nested state machines exceeds the authorized value.

Resolution

Consider refactoring the offending state machine to reduce the number of nested state machines.

Customization

This rule depends on the Number of nested state machines metric, that must be included in the package. If you customize the ID of this metric, you must provide it when instantiating the rule, using the parameter metric_id.

Cf. Customization for an example.