Recently, defects that occurred during the construction of apartment houses have become a social issue. Defects in apartment houses lead to waste of resources and economic loss, causing psychological and physical damage to customers, and a decrease in reliability and financial loss to construction companies. The purpose of this study was to analyze the impact of defect occurrence according to the difference in project management level in the apartment housing construction stage, and to investigate the extent to which the project manager's experience affects the defect occurrence rate. For the empirical analysis of the study, statistical analysis was conducted using data collected from 130 actual projects. The results of the analysis showed that schedule management, cost management, and quality management had a positive effect on reducing the defect occurrence rate in the execution stage of apartment housing construction, while human resource management productivity had a negative effect. This study theoretically demonstrated the importance of project management, and in practice, showed that schedule management, cost management, and quality management should be faithfully performed in the execution stage to reduce the rate of defects after project completion. It was also suggested that hiring an experienced project manager would help reduce project defects.

Purpose: The purpose of this study was to describe the nursing unit manager's experience with patient safety accidents. Methods: Data were collected from April, 2017 to December, 2017 through in-depth interviews with seven unit managers who worked in General wards, OPD or in the ICU of a general hospital. Qualitative content analysis method was used to analyze the data. Results: The following four categories were elicited; dimensions are different from each other, complex feelings about the person after the accident, ambivalence for the accident triggers, leadership learned from accident management. Conclusion: The findings provided valuable informations on the nursing unit managers' experience with patient safety accidents, which held many nursing implications. Based on the findings, it is possible to develop accident management guidelines and the support system for accident management personnels.