The spec (v3.1) requires IdShorts to have at least two characters:
Constraint AASd-002: idShort of Referables shall consist of at least two characters and shall only feature letters, digits, hyphen ("-") and underscore (""); starting mandatory with a letter, and not ending with a hyphen, i.e. ^[a-zA-Z][a-zA-Z0-9-]*[a-zA-Z0-9_]+$.
This rule won't change with v3.2 either (admin-shell-io/aas-specs-metamodel#641 (comment)).
The IdShort of several elements in the Data Model For Asset Location SMT are by this rule invalid, as they are single character values, in particular "X", "Y", "Z".
The spec (v3.1) requires IdShorts to have at least two characters:
Constraint AASd-002: idShort of Referables shall consist of at least two characters and shall only feature letters, digits, hyphen ("-") and underscore (""); starting mandatory with a letter, and not ending with a hyphen, i.e. ^[a-zA-Z][a-zA-Z0-9-]*[a-zA-Z0-9_]+$.
This rule won't change with v3.2 either (admin-shell-io/aas-specs-metamodel#641 (comment)).
The IdShort of several elements in the Data Model For Asset Location SMT are by this rule invalid, as they are single character values, in particular "X", "Y", "Z".