This book systematically explores the construction of static mathematical models for various processes. It presents the formulation of experimental planning tasks and discusses the selection of optimization parameters and process factors. Methods for designing laboratory and industrial experiments are illustrated with examples from specific metallurgical and chemical studies. The reader is expected to have a basic understanding of mathematical statistics. This book serves as an introduction to experimental planning methods and will be valuable for professionals in research institutes and factories within the metallurgy, chemistry, and other industrial sectors, as well as for students and graduate students in related fields.