## 4 Results  
It is possible to analyze marine accidents using a weighted Ishikawa diagram when considering decision-making methods, including multi-criteria and multidimensional scaling techniques, which often support diagnosed issues and problems in various fields. The methodology above is divided into stages accordingly. The determination of the problem category, i.e., causes of a marine casualty according to the selected 5 Ms, 6 Ms, 5 Ms + E, or a combined idea is based on the previously conducted literature on the subject, with stages of the full process listed below:  
1. Definition of first- and second-order causes. 2. Definition of the relative weights of the causes at each level. 3. Definition of the absolute value of the individual sub-cause weights. 4. Stratification analysis. 5. Definition of a set of critical causes. Figure 4 shows the main categories of causes of marine accidents. The main cause weights were determined based on a comparison matrix, according to the 4 Ms +A approach, i.e., Human, Machine, Management, and Other factor, see Table 1.  
The standardized weights for the main factors are placed in circles on the Ishikawa diagram. The upper part of the circle contains the relative weight related to the factor in question, while the lower part contains the absolute weight associated with the whole group. The two weights are equal for the main factors (Figure 5). \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multicolumn{1}{c}{**Environment**} & \multicolumn{1}{c}{**Human**} & \multicolumn{1}{c}{**Machine**} & \multicolumn{1}{c}{**Management**} & \multicolumn{1}{c}{**Other Factor**} & \multicolumn{1}{c}{**Total**} & \multicolumn{1}{c}{**Ratio of Weight to Sum of**} & \multicolumn{1}{c}{**Validity of Factors**} \\ \hline Environment & X & 0.25 & 0.25 & 0.25 & 0.75 & 1.5 & 0.150 & 4B \\ Human & 0.75 & X & 0.1 & 0.5 & 0.75 & 3.0 & 0.300 & 1A \\ Machine & 0.75 & 0 & X & 0.25 & 0.75 & 1.75 & 0.175 & 3B \\ Management & 0.75 & 0.5 & 0.75 & X & 0.75 & 2.75 & 0.275 & 2A \\ Other factor & 0.25 & 0.25 & 0.25 & 0.25 & X & 1.0 & 0.100 & 5B \\  & & & & & Total & 10 & 1.000 & \\ \hline \hline \end{tabular}
\end{table} 
Table 1: Comparison matrix for leading causes. Figure 4: Ishikawa diagram leading causes. Of the main reasons outlined, the group identified as \"human\" had the most significant weight, followed by \"management\", \"machine\", \"environment\", and \"other\". This preliminary assessment represents the beginning of inquiries in the area under investigation. The next step is to identify the first- and subsequent-order sub-causes. A detailed set of causes with first-, second-, and third-order sub-causes is presented in Table 2. \begin{table}
\begin{tabular}{c c c} \hline \hline \multicolumn{2}{c}{**Main Causes**} & \multicolumn{2}{c}{**Sub-Causes of the First, Second, and Third Levels**} \\ \hline \multirow{2}{*}{1. Environment} & [1.1.] Adverse meteorological conditions \\ \cline{2-3}  & [1.2.] Adverse hydrographical conditions \\ \hline \multirow{6}{*}{2. Human} & [2.1.] Adverse social system \\ \cline{2-3}  & [2.1.1.] Social pressure \\ \cline{2-3}  & [2.1.1.1.] Expectation of punctuality \\ \cline{2-3}  & [2.1.1.2.] Expectation of speed \\ \cline{2-3}  & [2.1.1.3.] Expectation of responsibility \\ \cline{2-3}  & [2.1.2.] Life stresses \\ \cline{2-3}  & [2.1.2.1.] Death of a loved one \\ \cline{2-3}  & [2.1.2.2.] Illness of a close relative \\ \cline{2-3}  & [2.1.2.3.] Harm (own) \\ \cline{2-3}  & [2.1.2.4.] Loneliness \\ \cline{2-3}  & [2.1.2.5.] Risk of dismissal \\ \cline{2-3}  & [2.1.3.] Social role \\ \cline{2-3}  & [2.2.] Inappropriate situational system \\ \cline{2-3}  & [2.2.1.] Employee fatigue \\ \cline{2-3}  & [2.2.1.1.] Long working hours \\ \cline{2-3}  & [2.2.1.2.] Perceived pain \\ \cline{2-3}  & [2.2.1.3.] Strenuous hydrometeorological conditions \\ \cline{2-3}  & [2.2.2.] Stress caused by an external stimulus \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Marine accidents—leading and sub-causes of I level and sub-causes of II level.