Companies adopt Enterprise Resource Planning (ERP) systems in order to streamline their business processes and to integrate their information systems. ERP implementations have reported failures e.g. because of a lack of integration into existing legacy systems or insufficient training and support for the business processes. User-Centred Design (UCD) aims at improving the effectiveness, efficiency, and user satisfaction of the system to be designed. In a Commercial-Off-The-Shelf (COTS) - type ERP system implementation, the user requirements are not used for designing an ERP system....