Kernrechtsfrage
Whether the wage difference could be justified by the employee's weaker computer/layout performance before and after the new system was introduced.
Extrahierter Entscheid
A wage difference could not be justified before the definite introduction of the new system; after introduction, a limited difference could be justified only once the employee had to master the new requirements and failed to do so.
Extrahierte Begründung
Before the layout system, the employer did not prove any effect on work performance. After introduction, the layout work became part of the job and deficiencies could affect output and workflow, but the decisive date of definite implementation and training had not been established, requiring remand.