In this subject, we would study ways of analyzing design solutions with the goal of finding ways for their: modification by improving technical characteristics, improving quality, improving the look (restoration, redesign, design and overall design), differentiation, diversification and elimination. Production. Quality. Indicators of product quality in mechanical engineering. Methodology of product quality assurance. Product Quality Assessment Methodology. Assessment of the quality of the construction solution. Means of improving product quality. Method affinity diagram. Comparative method with benchmark. The idea of ??a torrent of ideas. The cause is the result. Flowchart. Ecology. Regulations. Also, we would study ways of designing machine structures with the goal of creating modern products that would be noticed on the market. Special attention would be paid to the so-called, ecological design, ie, adapting the shape, color and graphics of information to the environment. Function. Purpose. Structure. Size. Type of material. Mass. Ergonomic requirements. Security. Aesthetic requirements. Size of the series. Delivery time. Quality. Reliability. Working life. Level of efficiency. The price. Manner of production and technology. Assembly. Tagging. Examination. Conservation. Packing. Packaging. Storage. Transport. Deconservation. Installation. Handling. Exploitation. Service. Maintenance. Hygienic requirements. Repair. Outside influences. Biological factors. Recycling. Environmental Protection. Special and personal requirements.