To compare new developments in the field of computer performance, it is necessary to simulate a computer system. The simulation of computer system need a representative artificial test workload, which describe the workload of a real computer system. This paper includes a derivation from the real workload to an artificial test workload and concludes with some hypothetical clauses, which came in mind during the measurement. This clauses may be a basis of workload prognosis. (orig.)Available from TIB Hannover: RO 8347(1996,25)+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman