Most elements (see below) in an ISO 21434 project have a stereotype and general classifier pair.  If the general classifier of such an element is removed, or an element is created and given only a stereotype listed below, a validation error will appear. The validation rule provides a solver whereby the appropriate general classifier can be applied to the element by selecting the solver option. That validation error will have the abbreviation ISAC and a message describing the problem. 

Abbreviation

ISAC

Message

'<Element Name>' has applied stereotype '<Stereotype Name>' but has no generalization to '<AbstractElementType Name>'

Severity

error

Context element

This table shows the appropriate stereotype and the corresponding abstract class.

Stereotype

AbstractClass

AttackPotentialBasedAttackPath

AbstractAttackPotentialBasedAttackPath

CybersecurityAsset

AbstractCybersecurityAsset

DamageScenario

AbstractDamageScenario

ManualAttackPath

AbstractManualAttackPath

ThreatScenario

AbstractThreatScenario

CybersecurityAssuranceLevel

AbstractCybersecurityAssuranceLevel

Weakness

Weakness (from RAMML)


Solvers

You can select the Add generalization to ‘<AbstractElementType>' command.