Over the past years the widely spread use of enterprise resource planning (ERP) systems has significantly changed the way of working. The close correlation between task fulfillment and ERP use has an essential effect on the software users and their job satisfaction. To understand job satisfaction is an important success factor for all firms because it impacts the behavior of the employees. The job characteristics model (JCM) derived by Hackman and Oldham explains job satisfaction by looking at the characteristics of the tasks. Because of the significant impact of technologies, such as ERP systems, we argue that the model has to be extended towards a user-centered view and found technology characteristics explaining job satisfaction, too. We use a qualitative approach to define these unknown constructs and derived an extended model which has to be tested and verified by further research.