Virtual reality-based decision support model for interior design and decoration of an office building

Abstract

Purpose The purpose of this paper is to develop a virtual reality (VR)-based and user-oriented decision support system for interior design and decoration. The four-phase decision-making process of the system is verified through a case study of an office building. Design/methodology/approach Different “spatial layouts” are presented by VR for users to decide their preference (Phase 1). According to the selected spatial layout, a “spatial scene” is constructed by VR and Technique for Order Preference by Similarity to an Ideal Solution (TOPSIS) is used to determine the spatial scene preference (Phase 2). Based on the binary integer programming method, the system provides the optimal preliminary solution under a limited decoration budget (Phase 3). Finally, the consistency between the overall color scheme and pattern is fine-tuned by VR in order to obtain the final solution (Phase 4). Findings The questionnaire survey results show that decision makers generally affirm the operation and application of VR, and especially recognize the advantages in the improvement of VR-based interior design feasibility, communication efficiency and design decision-making speed. The optimization of the costs and benefits enables decision makers to effectively evaluate the impact of design decisions on subsequent project implementation during the preliminary design process. Originality/value The VR-based decision support system for interior design retains the original immersive experience of VR, and offers a systematic multiple criteria decision- making and operations research optimization method, thus, providing more complete decision-making assistance. Compared with traditional design communication, it can significantly reduce cognitive differences and improve decision-making quality and speed.

How Much Can VR Improve Spatial Experience? - A Case Study with a Commercial Building Project

“…The above statistical tests show that the dimension of "perceived ease of use" still requires more attention and improvement for people using the VR simulation system in the future. This inference is in line with many previous studies suggesting that some users are prone to motion sickness, disorientation, loss of balance, sensory conflicts, and adverse physical or psychological effects during long-term immersive experiences (Juan et al, 2021;Kim et al, 2018;Li et al, 2020;Singh et al, 2021). The hardware should be more lightweight and wireless to improve the comfort of headset wearing.…”

“…In order to enable the space of commercial buildings to meet the needs of future users and increase the competitiveness of investment promotion, information communication at the design stage is becoming even more critical. These communication contents involve preliminary design concepts, spatial scales, style presentation, equipment configuration, and various material selections (Baldwin et al, 2009;Juan et al, 2021). In the traditional architectural design process, it is often necessary to wasted large amount of paper to assist repeat the communication process to ensure design quality, which leads to a waste of workforce, time, money, and earth resources.…”

ISM-based analysis of VR-AEC adoption barriers and their inner mechanisms

“…(3) Other sensory channels like tactile or olfaction are also short of fidelity, making users lose the feeling of the texture, weight, temperature or smells (Du et al. , 2016; Juan et al. , 2019; Zhu et al.…”

Optimal decision-making model for selecting residential green building technologies in China

“…Qualitative methods focus on understanding user needs through observation, interview, and user experience analysis (Park et al, 2013), while quantitative methods have attracted more attention in recent years by using the Kano model to classify and rank user needs, which has been widely used in various fields (Juan et al, 2019;Lu & Juan, 2021;Xu & Juan, 2021). As for cost-benefit analysis, the zero-one integer programming (ZOIP) method, an important branch of management science, is suitable for dealing with the optimization problem of scheme selection under a limited budget, and has mature applications in the construction field (Juan et al, 2021). Therefore, this study adopts these two methods to explore user preferences for GBTs and the cost-benefit analysis respectively.…”