스마트홈 IoT 시스템별 특성이 지속사용의도에 미치는 영향 : 가치기반수용모형（VAM）과 기술수용모형（TAM） 기반 통합 모형 = The Impact of Smart Home IoT System-Specific Characteristics on Continuance Intention : An Integrated Model Based on the Value-based Adoption Model （VAM） and Technology Acceptance Model （TAM）

다국어 초록 (Multilingual Abstract)

With the advancement of Fourth Industrial Revolution technologies and the shifting paradigm of residential environments, the Smart Home has evolved beyond simple automated devices into a customized, intelligent living space for residents. For the sustainable growth of the smart home industry, it is essential to identify users' actual continuance intention beyond initial adoption. However, previous studies have shown limitations in explaining complex user behaviors by treating the smart home as a single technological service or relying on fragmented adoption theories.
Accordingly, this study divided the Smart Home IoT system into the Residential Space IoT System （security, interoperability, reliability, convenience） and the Device IoT System （personal innovativeness, ease of use, controllability, perceived cost）, and constructed a research model integrating the Value-based Adoption Model （VAM） and the Technology Acceptance Model （TAM）. In addition, perceived value and perceived usefulness were set as mediating variables to analyze the structural relationship of how these factors affect continuance intention to use.
For the empirical analysis, a survey was conducted on 358 users with experience using Smart Home IoT systems, and a Partial Least Squares Structural Equation Modeling （PLS-SEM） analysis was performed using Smart PLS 4.0.
The results of the study are as follows. First, among the characteristics of the Residential Space IoT System, interoperability, reliability, and convenience had a significant effect on both perceived value and perceived usefulness. On the other hand, security had a significant effect on perceived value but did not have a significant effect on perceived usefulness. Second, among the characteristics of the Device IoT System, personal innovativeness, ease of use, and controllability had a significant effect on both perceived value and perceived usefulness, whereas perceived cost had no significant effect on either mediating variable. Third, both perceived value and perceived usefulness had a significant effect on continuance intention to use, and perceived usefulness, in particular, was confirmed to be the strongest core factor driving continuance intention to use.
This study holds academic significance by presenting an original research model that integrates VAM and TAM while securing high explanatory power by dividing the smart home system into space and device dimensions. Practically, it suggests that going beyond simple functional competition, maximizing reliability, interoperability, and ease of use to allow residents to experience actual daily efficiency （usefulness） is a core strategy for smart home companies to improve user retention.

목차 (Table of Contents)

• Ⅰ. 서론 1
• 1. 연구배경 및 목적 1
• 2. 연구방법 5
• 3. 연구구성 7
• Ⅱ. 이론적 배경 9
• 1. 스마트홈 IoT 시스템 9
• 2. 가치기반수용모형（VAM） 13
• 3. 기술수용모형（TAM） 15
• 4. 주거공간 IoT 시스템의 구성요인 17
• 5. 디바이스 IoT 시스템의 구성요인 23
• 6. VAM과 TAM의 구성요인 30
• Ⅲ. 연구방법 35
• 1. 연구모형 35
• 2. 연구가설 38
• 3. 변수의 조작적 정의 48
• Ⅳ. 연구결과 58
• 1. 자료수집 및 표본특성 58
• 2. 기술통계분석 61
• 3. 자료의 분석방법 69
• 4. 신뢰성·타당성·상관관계 분석 73
• 5. 구조모형의 검정 79
• Ⅴ. 결론 93
• 1. 연구결과 요약 93
• 2. 연구의 시사점 95
• 3. 연구의 한계점 및 향후 연구 방향 97
• [참고문헌] 98
• [부록] 106