Deduction of critical influence factors on defect judgment in apartment housing using fail mode and effect analysis

The number of apartment housing defect lawsuits has been gradually increasing in Korea. Wasted time and costs in social terms resulting from defect lawsuits are becoming a serious issue. Apartment housing defect lawsuits occur due to disputes on defects caused by conflicts among participants related to defects. It is necessary to minimize conflicts among participants.Therefore, the purpose of this study is to deduct critical influence factors that affect judgment on apartment housing defects using failure mode and effect analysis (FMEA) and to minimize conflicts among participants related to defects. The methods and procedures used in this study are as follows. First, potential influence factors were selected by interviewing defect assessment companies and court appraisers. Second, a survey on defect assessment companies and court appraisers was conducted based on selected potential influence factors for occurrence, severity, and detection (three evaluation scales of FMEA), and the top 10 factors for the three scales were compared. Finally, critical influence factors were derived by calculating the risk and risk grades of potential influence factors. The results of this study are follows.Among 22 potential influence factors, the factors that affect judgment on apartment housing´s defects deducted ´selection of a defect assessment company with a low price bidding method´ and factors related to capabilities of participants. These findings will be used to devise strategies to minimize conflicts among participants in the process of apartment housing defect lawsuits.