Abstract
Research and development (R&D) studies that carried out systematically to increase scientific and technical knowledge and to combine this knowledge with creativity and express its use in new applications, are extremely important in terms of sustainability in competition, development of new products and production processes, as well as the development and improvement of existing products and production systems. R&D has the same importance for cosmetics companies. Today, leading companies in the cosmetics industry allocate serious budgets to research and development activities to meet customer demands. Choosing the right R&D projects plays a key role in the correct use of this budget. This selection problem is a complex problem in terms of characteristics of alternatives, criteria and decision makers. In this study, the Gray-WASPAS (Gray - Weighted Aggregated Sum Product Assessment) method was chosen considering the characteristics of the criteria and the difficulties of expression in evaluating the alternatives according to these criteria, and this complex problem was solved.
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