The proposition of the method improving the identify the root of problem

Purpose: The aim of the work was to propose the integrated decision method with quality techniques to precision identify the root of the problem. Design/methodology/approach: The proposed method was integrated methods as the Ishikawa diagram, 5Why method and AHP method. An idea of the proposed method was improving the process of identifying the problem by using a new mixed-method, ie. after Ishikawa diagram the methods 5Why and AHP. Findings: It was demonstrated, that it is purposeful using the proposed mixed method (ie. qualitative and quantitative) to expand the horizon of identifying the root cause. Research limitations/implications: The limitation is the subjectivism of the entity using the method, which is revealed during assessing the causes of a problem. Therefore, future works will be based on the minimalization of subjectivism by using the fuzzy Saaty scale. Practical implications: The proposed method is a new approach to analyse different types of problems and support the process of solve decision problems. Therefore, this method can be practice in service and production enterprises to identify the root of product incompatibility. Social implications: Using the method allows improving the process of making the decision about causes of the problem, and limits the possibility of wrong decision about the source of the problem. Originality/value: The proposed method was used a new proposal of mixed-method, ie. it was used integrated the Ishikawa diagram, 5Why method and AHP method. The presented method is some kind of a new approach to identify the root of the problem.