This book provides a methodology for decision making problems developed in the context of soft computing, fuzzy systems and computational intelligence. The book includes four parts that cover an introduction to evaluation, the evaluation logic theory, the Logic Scoring of Preference (LSP) method, and applications. Part One (Evaluation Decision Problems) is an introduction to evaluation. Part Two (Evaluation Logic) presents a detailed theoretical background for the weighted idempotent aggregation of suitability and modeling of mental evaluation processes. Part Three (LSP Method) presents the area of professional evaluation, the design of complex evaluation logic criteria, and all other components of the LSP method. Part Four (Applications) includes a spectrum of applications of the LSP method in the areas of system evaluation, comparison, selection, and optimization.