There is a necessity in a number of IIASA's researches to deal with analyzing the properties of the computerized versions of complex models. The use of simulation experiments is one of the most successful tools in solving this problem. In this paper, the package of programs for the design and analysis of simulation experiments is described. The package was prepared in the All-Union Institute of Systems Studies in Moscow. It is one of the first attempts in this field, and the authors did not expect to have constructed a very comprehensive variant, but hope that more experience, remarks and critiques will help to improve and extend the package in a most useful and practical way
