On the Properties of the Priority Deriving Procedure in the Pairwise Comparisons Method

摘要: The pairwise comparisons method can be used when the relative order of preferences among different concepts (alternatives) needs to determined. There are several popular imple- mentations this method, including Eigenvector Method, Least Squares Chi Method and others. Each above methods comes with one or more inconsistency in- dices that help decide whether consistency input guarantees obtaining a reliable output, thus taking optimal decision. This article explores relationship between error output. An describes what extent obtained results correspond single expert's assessments. On basis error, two properties weight deriving procedure formulated. These proven for eigenvector Koczkodaj's index. Several estimates using index principal eigenvalue, Saaty's Condition Order Preservation also provided.