## 6 Usage and Verification of Proposed Quality Checking Requirements
### Results of the Applied Criteria
#### 6.2.1 Space Check Criteria  
Space check criteria are the criteria for evaluating whether BIM data reflects the space program. In this study, the basic rule set in SMC was modified to develop targeted model-specific rules for the space program. A quality check on this rule was performed. Table 9 shows the results from the quality check for each case model. Figure 9: Example of rule-based quality checking results according to design check criteria (e.g., installation of ceiling). \begin{table}
\begin{tabular}{l c c c} \hline \hline \multicolumn{1}{c}{**Space Check Criteria Checklist**} & \multicolumn{3}{c}{**Error**} \\ \cline{2-4}  & **Case 1** & **Case 2** & **Case 3** & **Case 4** \\ \hline Space objects, which are located in all planned & 0 & 0 & 0 & 0 \\ space, should be defined. & & & & \\ \hline Space objects should be defined using & & & & \\ non-duplicated space number (facility number) & & & & \\ as the attribute, according to the list in the space & 0 & 0 & 0 & 0 \\ program. & & & & \\ \hline Space objects should be defined using & & & & \\ non-duplicated space name as the attribute, according to the list in the space program. & 0 & 0 & 0 \\ according to the list in the space program. & & & \\ \hline The BIM should consider space objects, which are defined in the space program. & 22 & 1 & 19 & 0 \\ \hline Space objects should be categorized into zones & & & & \\ according to the purpose of the space. & & & & \\ \hline The total area of floor space objects on each floor & & & & \\ of the building should be within the error range & & & & \\ specified in the spatial plan for the planning area & & & & \\ \hline \hline \end{tabular}
\end{table} 
Table 9: The result of quality checking against space check criteria in case models. \begin{table}
\begin{tabular}{l c} \hline \hline \multicolumn{1}{c}{**Image**} & \multicolumn{1}{c}{**Description**} \\ \hline \multirow{4}{*}{Case 1} & \multirow{4}{*}{\begin{tabular}{c} Location: Seoul (Site zone: central) \\ Purpose: business and neighborhood \\ living facilities \\ Number of floors: 6 basement floors, 15 \\ Area of land: 694.4 m\({}^{2}\) \\ \end{tabular} } \\ \hline \multirow{4}{*}{Case 2} & \multirow{4}{*}{\begin{tabular}{c} Location: Gyeonggi-do (Site zone: central) \\ Purpose: cultural and business facilities \\ Number of floors: 3 basement floors, 15 \\ ground floors \\ Area of land: 10,802 m\({}^{2}\) \\ \end{tabular} } \\ \hline \multirow{4}{*}{Case 3} & \multirow{4}{*}{\
\begin{tabular}{c} Location: Gyeonggi-do (Site zone: central) \\ Purpose: cultural and business facilities \\ Number of floors: 2 basement floors, 13 \\ ground floors \\ Area of land: 10,802 m\({}^{2}\) \\ \end{tabular} } \\ \hline \multirow{4}{*}{Case 4} & \multirow{4}{*}{
\begin{tabular}{c} Location: Gyeonggi-do (Site zone: central) \\ Purpose: cultural and business facilities \\ Number of floors: 4 basement floors, 11 \\ Area of land: 10,802 m\({}^{2}\) \\ \end{tabular} } \\ \hline \hline \end{tabular}
\end{table} 
Table 8: Overview of case models. Problems identified in the quality check based on space check criteria are described in Table 10. In addition, solutions to these problems are suggested.