Furthermore, it means continuously improving the equipment they use so that they can achieve the highest quality and most cost-effective results. At the same time, workers should not be put under too much physical strain, and should certainly not come to any harm, even if they do the same job over a period of many years. According to Professor Peter Schwarz, a physicist who teaches in the Faculty of Life Sciences at Albstadt-Sigmaringen University, workplaces with good ergonomic design also create greater job satisfaction and increased levels of acceptance among the staff: "That, in turn, results in fewer errors, lower absenteeism, and hence greater efficiency."