## 3 Results and Discussion
\begin{table}
\begin{tabular}{l c c c} \hline \hline
**Group of IFs** & **Implementation Factors (IFs)** & **RII** & **Ranking** \\ \hline \multirow{3}{*}{**Economic factors**} & 1. & Investment costs for ICTs & 0.879 & 1 \\  & 2. & System maintenance costs during its lifetime & 0.758 & 5 \\  & 3. & The need to recruit IT staff to manage ICTs & 0.735 & 7 \\ \hline \multirow{3}{*}{**Technical factors**} & 4. & Compatibility of software solutions & \\  & 5. & Functional possibilities of the system & 0.648 & 9 \\  & 6. & Knowledge of the use of ICT in the field & 0.357 & 16 \\  & 7. & System maintenance and service and the need to & 0.489 & 14 \\  & & upgrade the system (administrative burden, & 0.737 & 6 \\  & & inspections, repairs) & \\ \hline \multirow{3}{*}{**Personnel factors**} & 8. & User qualification (training and certificates) & 0.648 & 9 \\  & 9. & User experience (practical experience) & 0.567 & 13 \\  & 10. & Readiness and disinterest of users & 0.639 & 11 \\  & 11. & Ability to embrace innovation and change & 0.706 & 8 \\  & 12. & Management support & 0.778 & 4 \\ \hline \multirow{3}{*}{**Industry factors**} & 13. & Fragmentation of the sector and integration & \\  & & among participants in construction projects & 0.583 & 12 \\ \cline{1-1}  & 14. & Legislative framework & 0.837 & 2 \\ \cline{1-1}  & 15. & Level of competition in the use of ICT & 0.435 & 15 \\ \cline{1-1}  & 16. & Level of use of ICT by other participants in the & 0.784 & 3 \\ \hline \hline \end{tabular}
\end{table} 
Table 5: Relative importance index of ICT implementation factors in life cycle cost management. be considered as medium-high significance. This again points to the trend that investment costs and other types of costs associated with ICT implementation represent a serious implementation factor. It is essential that these findings and the main research hypothesis are confirmed using the Kruskal-Wallis test. An overview of groups of factors shows that the most important are economic factors. Personal factors are also significant. Overall, the setting of people (employees) to accept change, and accept innovation and their skills and knowledge in the IT field, significantly affect the implementation of ICT in the cycle cost management of construction and construction projects. Based on the Likert scale and Kruskal-Wallis testing, an infographic was constructed that highlights the importance of individual factors for specific groups and provides information about the arithmetic mean for individual implementation groups (Figure 1). It is possible to discuss why experts and managers of construction projects have quantified and determined such a ranking of these implementation factors. These results should be compared with the research already carried out in the field of ICT implementation factors in the context of managing life cycle costs of buildings. The research results also confirm the research conclusions of [22; 23; 24; 25; 26; 27; 28; 29], in which the investment cost was a significant implementation factor. This result and comparison point to one of the phases of a construction project in the context of cost management. The research results point to a relatively high degree of implementation factors in life cycle cost management. An important view of the results is presented in Figure 1, in which the degree of importance of the implementation factor is quantified. The investment costs reached the highest value, and the given rate was 4.395, which represents very high importance from the point of view of ICT implementation. Regarding the degree of saving resulting from the use of ICT, which this research investigates, it can be stated that the turning point at which ICT will cover investment costs, should be in the 6 th to 10 th construction project. This clearly depends on other factors such as the size of the projects. However, consideration must also be given to operating costs, which extend this period.