By design: Accepts only a single counter measure

[WikiSteve]

While creating an attack tree, I've discovered with version 2.2.2 that only a single counter measure is permitted per node. Is this by design?

[vilena]

You can add only one countermeasure to an attack node, but each countermeasure node can be decomposed in many countermeasures. So if you need many countermeasures, first add one and then suitably decompose it into many (adding children nodes to it).

Similarly, only a single attack node can be added to a countermeasure node. This is by design and was done so that the tools complies with the attack-defense tree formal semantics.

[WikiSteve]

You can add only one countermeasure to an attack node, but each countermeasure node can be decomposed in many countermeasures. So if you need many countermeasures, first add one and then suitably decompose it into many (adding children nodes to it).

Similarly, only a single attack node can be added to a countermeasure node. This is by design and was done so that the tools complies with the attack-defense tree formal semantics.

Thank you for the thorough explanation Olga!