# Acceptance Model for Mobile Building Information Modeling (BIM)
## 6 Conclusions  
Mobile devices in construction help to operate an information system regardless of the location, and it is introduces many changes to information approach and to the working of project stakeholders. Besides, mobile BIM draws attention to tools that can contribute to enhancing collaborative performance through BIM by enabling the exchange of information organically. Accordingly, BIM programs supported by the mobile environment are continuously being released, and it is found that the mobile BIM applied to some sites generates actual benefits in carrying out projects. Although various efforts are being made to use a mobile BIM, it is found that it is underutilized due to the lack of experience in using a mobile BIM, the high age of expected users, and inconsistency between the actual working processes and BIM processes. Moreover, some studies related to the use of mobile BIM have differing views on the same cause, which may be interpreted as a lack of analysis of factors that affect the actual users' acceptance and utilization of the mobile BIM. Accordingly, this study analyzed the factors and their associations with the factors that affect the acceptance of a mobile BIM by construction practitioners as part of its efforts to activate the use of the mobile BIM. A questionnaire was organized to define the characteristics of the mobile and BIM through existing literature considerations and to analyze the external factors affecting the mobile BIM acceptance. The survey collected 111 copies from construction practitioners (designers, contractors, CMs, engineering, and BIM contractors). The results of the survey were broken down into factors and path analysis was undertaken using SPSS 21.0 and Amos 21.0, and the factors that significantly affected mobile BIM acceptance were expressed in models through the structured model by checking the concentration and determination feasibility. As a result of the analysis, external factors that significantly affected the mobile BIM acceptance were found to be tool quality, personal efficacy, and behavior control. First, tool quality is the software performance of a mobile BIM application, suggesting that users need the quality of the tools they need for mobile BIM. Second, personal efficacy suggests that measures should be taken to appropriately promote the various benefits of using a mobile BIM. Third, behavior control suggests that there must be adequate support and pressure within the organization to use a mobile BIM. It is expected that this study will contribute to the revitalization of the technology along with the acceptance of the technology, provided that significant factors affecting the acceptance of the technology are appropriately managed. Moreover, it is expected that a mobile BIM will be developed to allow users to develop a variety of applications that are more easily acceptable to them. This study is limited in that it was difficult to generalize these results for all countries because our survey subject of this study is construction practitioners in Korea. If future studies conduct surveys on USA or Europe where the use level of mobile BIM is high, it will be able to present new findings due to comparing the results. Conceptualization, S.-H.H., S.-K.L., and J.-H.Y. ; methodology, S.-H.H., S.-K.L., and J.-H.Y. ; software, S.-K.L. ; validation, S.-H.H., [PERSON]-[PERSON], [PERSON]-[PERSON] and [PERSON]; formal analysis, [PERSON]-[PERSON] and [PERSON]-[PERSON]; investigation, [PERSON]-[PERSON] and [PERSON]-[PERSON]; resources, [PERSON]-[PERSON], [PERSON] and [PERSON]-[PERSON]; data curation, [PERSON]-[PERSON] and [PERSON]-[PERSON]; writing--original draft preparation, S.-H.H. ; writing--review and editing, [PERSON]-[PERSON], and [PERSON]-[PERSON]; visualization, [PERSON]-[PERSON] and [PERSON]-[PERSON]; supervision, [PERSON]-H.Y. ; project administration, [PERSON]-[PERSON]; funding acquisition, [PERSON] and [PERSON]-[PERSON].