Hosseinzadeh Lotfi, F.Allahviranloo, T.Pedrycz, W.Shahriari, M.Sharafi, H.Razipour, GhalehJough, S.2024-05-192024-05-1920231860-949Xhttps://doi.org/10.1007/978-3-031-44742-6_5https://hdl.handle.net/20.500.12713/4481This chapter explores the expansion of the Simple Additive Weighting (SAW) method in interval and fuzzy environments. The SAW method, a popular decision-making approach, is enhanced by incorporating interval arithmetic and fuzzy logic. Real-world examples illustrate the practical implications of the expanded SAW method, demonstrating its versatility in diverse domains. The abstract highlights the benefits and challenges of the interval and fuzzy SAW method and emphasizes its potential as a valuable tool for informed decision-making in uncertain and imprecise contexts. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2023.eninfo:eu-repo/semantics/closedAccessBook Chapter11211171402-s2.0-8518468092510.1007/978-3-031-44742-6_5N/A