A Review of Smart Design Based on Interactive Experience in Building Systems

: Smart building is the result of the penetration of information technology and control technology into traditional buildings, and is the future development direction of buildings. User-centric building smart design can achieve a sustainable life, and smart technology integration based on smart design can support sustainable development and improve user satisfaction, happiness, and overall quality of life. In intelligent design, researchers focus on the “people-oriented” approach, designed to bring users the ultimate interactive experience. Based on the interactive experience principle of smart design in the smart building system, this article classiﬁes and summarizes intelligent design from the “ﬁve senses” interaction, including visual interaction, voice interaction, tactile interaction, cognitive interaction, and emotional interaction. We analyze the application of smart design in architecture and discuss how to embody the principles of user-centered interactive experience design in the process of smart design. This article provides a comprehensive and systematic literature review, clariﬁes the importance of the “people-oriented” approach in the smart design of buildings, and summarizes how to improve the sustainability of intelligent buildings from the perspective of a “people-oriented” approach. This paper proposes future research suggestions and directions and promotes the sustainable development of the smart building.


Introduction
Since the 1990s, digital technology has developed rapidly and penetrated into various fields, and the application and service based on computer systems have proliferated. With the continuous expansion of the Internet to ordinary family life, a powerful and highly smart building system is gradually formed, making it possible to achieve a safer, more convenient, energy-saving, and intelligent home life. Smart building is the result of the penetration of information technology and control technology into traditional buildings [1][2][3]. From the first summit in 2000 to the 19th China International Building Intelligence Summit, although the road to intelligent building automation in China has undergone many twists and turns, this process has been unstoppable. The development of science and technology has made people unswervingly pursue a higher quality of life. Smart buildings have attracted more and more attention as representatives of high-quality information life. For example, Fuji Xerox Parker's main research and development areas are smart workplaces (spaces) and flexible working methods. The main achievements include a wearable remote video communication system and a desktop file management and remote communication system, aiming to make information transmission more efficient, more accurate, more interactive, and social. The Computer and Artificial and the mutual influence of each perception element constitutes the entire experience of architectural perception. Starting from the perspective of the "five senses" can better reflect the "people-oriented" principle, and provide more possibilities for smart building design, thereby improving the comfort, satisfaction, and sustainability of smart buildings. Therefore, based on the interactive experience principle of smart design in the smart building system, this article classifies and summarizes intelligent design from the "five senses" interaction, including the visual interaction, the voice interaction, the tactile interaction, the cognitive interaction, and the emotional interaction. We analyze the application of smart design in buildings and discuss how to embody the principles of user-centered interactive experience design in the process of smart design. This article provides a comprehensive and systematic literature review, clarifies the importance of the "people-oriented" principle in the smart design of buildings, and summarizes how to improve the sustainability of intelligent buildings from the perspective of a "people-oriented" approach. This paper proposes future research suggestions and directions and promotes the sustainable development of the smart building.

Method
This research used a content analysis method for review analysis. The content analysis method can be used to systematically and effectively make inferences based on the collected data, so as to conduct qualitative and quantitative analysis of the research status, which is beneficial to describe the overall application of the "people-oriented" interactive experience principle in smart design [8]. The qualitative analysis of the content analysis method can reflect the main characteristics of the literature; the quantitative analysis of the content analysis can objectively summarize the research content, and reveal and summarize the potential information of the existing literature in terms of time, region, and so on. Therefore, the content analysis method can more comprehensively analyze the application of the "people-oriented" interactive experience in smart design, and ensure that the research results are reliable and effective. During the review process, the work design of the review study was particularly borrowed from the framework of Kim [9].

Step 1: Identifying the Research Question
The daily smart building system is mainly composed of people, control systems, and electronic products, as shown in Figure 1. Among them, the control system establishes an intelligent connection between people and electronic products for mutual information transmission and feedback. On the one hand, the performance of the control system determines the intelligence of the building system. On the other hand, people belong to the main service objects of the smart building system, and the performance of the control system also determines the satisfaction degree of the people in the smart building service. The performance of the control system mainly depends on intelligent technology. The "people-oriented" interactive experience design principle based on cognitive psychology, design psychology, and other related theories has a significant impact on the design of smart building technology, fully plays the role of interactive experience, builds a bridge between information transmission and the intelligent environment, and achieves a more complete human-computer interaction mode. interrelated and inseparable, and the mutual influence of each perception element constitutes the entire experience of architectural perception. Starting from the perspective of the "five senses" can better reflect the "people-oriented" principle, and provide more possibilities for smart building design, thereby improving the comfort, satisfaction, and sustainability of smart buildings. Therefore, based on the interactive experience principle of smart design in the smart building system, this article classifies and summarizes intelligent design from the "five senses" interaction, including the visual interaction, the voice interaction, the tactile interaction, the cognitive interaction, and the emotional interaction. We analyze the application of smart design in buildings and discuss how to embody the principles of user-centered interactive experience design in the process of smart design. This article provides a comprehensive and systematic literature review, clarifies the importance of the "peopleoriented" principle in the smart design of buildings, and summarizes how to improve the sustainability of intelligent buildings from the perspective of a "people-oriented" approach. This paper proposes future research suggestions and directions and promotes the sustainable development of the smart building.

Method
This research used a content analysis method for review analysis. The content analysis method can be used to systematically and effectively make inferences based on the collected data, so as to conduct qualitative and quantitative analysis of the research status, which is beneficial to describe the overall application of the "people-oriented" interactive experience principle in smart design [8]. The qualitative analysis of the content analysis method can reflect the main characteristics of the literature; the quantitative analysis of the content analysis can objectively summarize the research content, and reveal and summarize the potential information of the existing literature in terms of time, region, and so on. Therefore, the content analysis method can more comprehensively analyze the application of the "people-oriented" interactive experience in smart design, and ensure that the research results are reliable and effective. During the review process, the work design of the review study was particularly borrowed from the framework of Kim [9].

Step 1: Identifying the Research Question
The daily smart building system is mainly composed of people, control systems, and electronic products, as shown in Figure 1. Among them, the control system establishes an intelligent connection between people and electronic products for mutual information transmission and feedback. On the one hand, the performance of the control system determines the intelligence of the building system. On the other hand, people belong to the main service objects of the smart building system, and the performance of the control system also determines the satisfaction degree of the people in the smart building service. The performance of the control system mainly depends on intelligent technology. The "people-oriented" interactive experience design principle based on cognitive psychology, design psychology, and other related theories has a significant impact on the design of smart building technology, fully plays the role of interactive experience, builds a bridge between information transmission and the intelligent environment, and achieves a more complete human-computer interaction mode.    Therefore, this article first consults the existing reviews of the smart design in buildings, clarifies which aspects are currently involved in those reviews, or does not cover too much, confirms the frequency or degree of attention of the interactive experience in those reviews, and ensures the research significance of the interactive experience in this article on the review of smart design in buildings. This article starts with the interactive experience principles of smart design in smart buildings, and follows the "five senses" interactions involved in interactive experiences, including visual interaction, voice interaction, tactile interaction, cognitive interaction, and emotional interaction. It classifies and summarizes smart design, analyzes the application of intelligent design, especially the interaction characteristics of the intelligent environment and the users, and explores how to embody the "people-oriented" interactive experience design principles when designing a smart environment.

Step 2: Collecting Studies
This article used the search terms related to "smart design" and "interactive experience" to conduct a literature search on the five major databases of ISI Web of Science, Science Direct, Ei Village, ACM Library, Scopus, and IEEE Explore. These search terms are universally accepted from journal to journal and from continent to continent, and there is no regional and journal bias. Wearable mobile devices and smart operating platforms are the mainstays in the smart building; for the "five senses" interactive experience, we searched for visual interaction, voice interaction, tactile interaction, cognitive interaction, and emotional interaction. Finally, all the collected documents were reviewed, and preliminary screening was conducted.

Step 3: Screening Literature
In order to ensure that the collected documents were consistent with the definition of the scope set in this article, all the collected documents have undergone strict screening and review, and the inclusion and exclusion criteria have been formulated as follows: The inclusion criteria were (1) literature that clearly introduces smart building equipment or technology; (2) the article aims to demonstrate the application of "people-oriented" interactive experience design principles in smart buildings; (3) the article is published after 2010; The exclusion criteria were (1) survey-type research using a scale or questionnaire; (2) comprehensive research on smart building panel design based on interactive experience; (3) exploring the developmental potential of interactive experience in smart building devices or usability studies. After determining the inclusion and exclusion criteria, the title was first screened, followed by the abstract, and finally the full-text review.

Step 4: Analyzing Literature
We conducted a qualitative and quantitative analysis of the filtered literature. Among them, qualitative analysis was used to identify the year and region of the literature, analyze the interactive characteristics of the intelligent environment formed by intelligent design and users, and explore how to embody the "people-oriented" approach in the process of intelligent design. Quantitative analysis was used to determine the number of years and geographical distribution of the literature. Through the above analysis, we can ensure the development of a trend of application of interactive experience in intelligent design, and propose better future development directions and suggestions.
In addition, the Figure 2 shows more details of the review process of this article.    Figure 3 also shows us clearly that the number of articles published before 2014 is far less than six, but after 2015, the number has increased significantly, which means that people pay more and more attention to the importance of the "people-oriented" interactive experience design principle in the application of smart building systems.    Figure 3 also shows us clearly that the number of articles published before 2014 is far less than six, but after 2015, the number has increased significantly, which means that people pay more and more attention to the importance of the "people-oriented" interactive experience design principle in the application of smart building systems.    Figure 3 also shows us clearly that the number of articles published before 2014 is far less than six, but after 2015, the number has increased significantly, which means that people pay more and more attention to the importance of the "people-oriented" interactive experience design principle in the application of smart building systems.   Table 1 shows the literature distribution of "people-oriented" interactive experience design principles applied in smart building systems in various countries and regions. Because many studies involve authors from many countries, the principle of our classification was based on the geographical location of research data or the research background in each research. This method can better reflect the geographical distribution of interactive experience in the application of smart design in building systems. According to the data in the table, there are 13 articles in China, accounting for 19.11%, followed by 8 in the United States, 4 in France, 3 in India, 3 in Australia, 3 in Spain, and 3 in Romania.  Table 2 shows the frequency of five different interaction modes in the literature, among which voice interaction is the highest (30.88%), followed by visual interaction and emotional interaction (20.59%), cognitive interaction (19.12%), and somatosensory interaction (14.70%). It was clearly found that the "people-oriented" interaction experience design principle has different degrees of application in different interaction modes, but these five interaction modes are indispensable in the smart building systems.

The Visual Interaction
In the building design system based on visual interaction, (1) when constructing the intelligent environment, in order to realize the technical development on different platforms and different controls, the hardware of the intelligent building system will adopt different methods. For example, the 3D image synthesis method is introduced to apply the 3D display to the control interface of the intelligent building system, so as to enhance the authenticity, user friendliness, and visual comfort of the interface and enhance user interaction experience [10,11]. (2) In order to ensure the user-centered principle, users participate in building applications that can be configured and managed on the iOS platform, and evaluate their availability [12]. (3) Based on the characteristics of user vision, measures such as "staring" should be taken to attract users' visual attention, so as to achieve efficient communication between human and machine and improve user satisfaction [13,14]. (4) Based on the feedback mechanism of users, the conscious optimization model of the visual interaction system is established to support better human-computer interaction [15,16]. (5) Give full consideration to the needs of users, especially for users with special needs, such as the disabled, through remote consultation of the visual system; intelligent nursing data can be provided, and the technology that can control the home building system through eye movement is proposed to give full play to the visual interaction of users [17][18][19]. In the design stage of the intelligent building system, let users really participate in the work of intelligent technology design, collect user experience and user data, and establish a user information database, which can not only improve the visual level of the intelligent building system, but also improves users' comfort and satisfaction [20][21][22][23][24].

The Voice Interaction
Voice interaction enables the user to control the intelligent building system by voice so as to realize the automation and robustness of the intelligent building system [25][26][27]. In the process of intelligent design of buildings, researchers often take suggestions of user participation and use deep learning and other techniques to continuously optimize the sensitivity of speech recognition [28,29]. (1) Researchers pay attention to the voice characteristics of users, develop an inclusive multi-functional intelligent building voice recognition system, improve the accuracy of user voice recognition, and bring more functions and experiences to users [30][31][32]. (2) The elderly or users with speech defects may encounter a series of problems in the home environment. The special speech recognition system developed can help them solve speech disorders and ensure their safety and health in life [33][34][35][36][37]. (3) In order to satisfy the users in the long distance voice interaction under special environment requirements, the designers of the analysis of the intelligent building system in the process of long distance voice interaction in which may exist problems, put forward the speech recognition system for long distances, and broke the voice interaction possible distance limit, to improve the user experience in the intelligence environment [38][39][40][41][42][43][44].

The Tactile Interaction
Body sense interaction is mainly to use smart building system equipment to intelligently identify the user's actions or make physical contact with the user to realize human-computer interaction [45,46]. When gesture recognition becomes the main interaction mode in smart building systems, designers pay more attention to the optimization of gesture recognition technology. By examining the different needs of users in different stages, gesture recognition technology changes from ordinary static recognition to dynamic recognition, from a single gesture to multiple semantics, constantly enriching the participation and satisfaction of users in the smart building experience [47][48][49]. At the same time, in view of the needs of special users, especially for blind or visually impaired users, from the user's perspective, the tactile channel is used instead of the perception channel to avoid the frustration brought by visual defects. The user-centered development of such a guidance model can effectively realize human-computer interaction and improve the user's satisfaction [50,51].

The Cognitive Interaction
Based on the different cognitive characteristics of users, in order to give full play to the advantages of cognitive interaction in smart building systems, a series of systems and devices are developed to meet the needs of users [52][53][54][55]. The interaction interface between the user and the smart building has a high impact on the user's experience. Analyze the cognitive characteristics of different types of users, and design the interaction interface from the perspective of information cognition, so as to reduce the cognitive friction generated by the user in the process of using a smart home, and then improve the user's use experience [56][57][58][59]. For the inevitable cognitive obstacles, especially with the coming of the aging age, there are many problems related to the decline of cognitive function. In order to supplement the cognitive function of the elderly users, the smart building user interface simulation model is established by the elderly users. Through the participation and feedback of the elderly users, the auxiliary system is proposed to realize the harmonious communication of the elderly in the intelligent environment and improve the performance of human-computer interaction in the intelligent environment [60][61][62][63][64][65].

Emotional Interaction
With the continuous improvement of users' needs, higher requirements are put forward for the building environment to obtain psychological and emotional satisfaction. In recent years, more and more emotional management systems based on emotional interaction have emerged in the smart building environment [66][67][68]. By analyzing the different emotional needs of different users, including emotional acquisition, emotional recognition, and all stages of emotional interaction, a highly interactive and experiential personalized and emotional intelligent device has been established [69][70][71][72][73]. The focus on the elderly user group is still the focus of emotional interaction. Design various emotional perception frameworks and devices to trigger emotional communication between the elderly and the smart building environment, and give full play to the importance of a "people-centered" approach [74][75][76].

Interactive Combination
The human-computer interaction in smart building is not only the use of a single interaction, but also the combination of different interactions in recent years. Through various combination modes, it can more comprehensively meet the user's requirements for interaction [77][78][79][80]. When integrating multiple interaction modes, users play a more important role in the smart design of the building system, especially for users with physical defects, and according to the real needs of users, through the combination mode of voice interaction and touchable sense interaction, the operation of the home system can be realized to ensure that such users complete their daily activities in the smart building system [1,[81][82][83]. Many kinds of interactive combinations are more and more popular, which is an opportunity for the future development of smart building; of course, the difficulty of technology is also a challenge.

Conclusions
This paper starts with the principle of interactive experience of smart design in the building system according to the "five senses" interaction involved in the interaction experience, including visual interaction, voice interaction, tactile interaction, cognitive interaction, and emotional interaction. This paper classifies and summarizes smart design, and analyzes the application of smart design, especially the interactive characteristics between the intelligent environment and users. It also explores how to embody the principle of "people-oriented" interactive experience design when designing an intelligent environment, and finds the key position of users in the smart design of the building, as shown in Figure 4; that is, the importance of the "people-oriented" principle. From the perspective of a "people-oriented" approach, this paper summarizes how to improve the acceptance of intelligent buildings and promote the development of a sustainable life.  First, the principle of "people-oriented" interactive experience design is to ensure the security, effectiveness, and sustainability of the smart building system, including intelligent communication in the building environment, which fundamentally changes the traditional smart building interaction mode. By reviewing the smart design based on the principle of "people-oriented" interactive experience design, focusing on changing the problems that need attention of the principles of "people-oriented" interactive experience design and the process of "people-oriented" interactive experience application in the process of specific technology use, we can find that: (1) In the research of principles of "people-oriented" interactive experience, with the continuous development of the times, more and more attention has been paid. Especially after 2014, most of the research is in the context of China, and the development trend of the smart building system is to maximize the needs of all users. For example, when we measure a smart building system, the different effects of interaction may make different users feel differently about the same product. Therefore, we should pay attention to the key position of "users" in smart building design. User-centered product design can provide specific uses for specific users in specific use environments, ensure the effectiveness, user satisfaction, and other performance of smart buildings, and can adapt to more use environments and achieve sustainable living. When using the user-centered concept of the "people-oriented" approach to participate in interactive design, we need to pay attention to the following issues. The first are requirements. From functional requirements to emotional needs, methods such as user surveys are adopted to collect user data accurately to clarify the real needs of users [11,34,47]. The second is user participation. In each test process before product technology shaping, users should participate in the experience, express their true feelings, and put forward opinions. Then, special technical designers should retain operational opinions, constantly optimize product technology, and improve the satisfaction of the interactive experience of smart buildings [9,45,64]. (2) In the analysis of the existing research, it was found that not only single interactive applications, but also the combination of two or several kinds of interaction existed, aiming at providing users with a comfortable and satisfactory home experience [73][74][75][76]. In recent years, the frequency of the smart building system model or technology development of this combination model has gradually increased. It is obvious that technology is developing towards a more complex, intelligent, and humanized direction.
Second, in order to ensure the sustainable life brought by smart buildings, the principle of the "people-oriented" interactive experience of smart design in building applications will follow the following principles. The first is to see the demand clearly [24,39]. Before the development of smart home technology, the needs of users, including physiological needs (functional needs) and psychological needs (emotional needs), will be fully considered. In terms of physiological needs, the smart design of the building system has improved people's quality of life to a certain extent, bringing convenience and comfort to people's lives. In terms of psychological needs, the smart design of the First, the principle of "people-oriented" interactive experience design is to ensure the security, effectiveness, and sustainability of the smart building system, including intelligent communication in the building environment, which fundamentally changes the traditional smart building interaction mode. By reviewing the smart design based on the principle of "people-oriented" interactive experience design, focusing on changing the problems that need attention of the principles of "people-oriented" interactive experience design and the process of "people-oriented" interactive experience application in the process of specific technology use, we can find that: (1) In the research of principles of "people-oriented" interactive experience, with the continuous development of the times, more and more attention has been paid. Especially after 2014, most of the research is in the context of China, and the development trend of the smart building system is to maximize the needs of all users. For example, when we measure a smart building system, the different effects of interaction may make different users feel differently about the same product. Therefore, we should pay attention to the key position of "users" in smart building design. User-centered product design can provide specific uses for specific users in specific use environments, ensure the effectiveness, user satisfaction, and other performance of smart buildings, and can adapt to more use environments and achieve sustainable living. When using the user-centered concept of the "people-oriented" approach to participate in interactive design, we need to pay attention to the following issues. The first are requirements. From functional requirements to emotional needs, methods such as user surveys are adopted to collect user data accurately to clarify the real needs of users [11,34,47]. The second is user participation. In each test process before product technology shaping, users should participate in the experience, express their true feelings, and put forward opinions. Then, special technical designers should retain operational opinions, constantly optimize product technology, and improve the satisfaction of the interactive experience of smart buildings [9,45,64]. (2) In the analysis of the existing research, it was found that not only single interactive applications, but also the combination of two or several kinds of interaction existed, aiming at providing users with a comfortable and satisfactory home experience [73][74][75][76]. In recent years, the frequency of the smart building system model or technology development of this combination model has gradually increased. It is obvious that technology is developing towards a more complex, intelligent, and humanized direction.
Second, in order to ensure the sustainable life brought by smart buildings, the principle of the "people-oriented" interactive experience of smart design in building applications will follow the following principles. The first is to see the demand clearly [24,39]. Before the development of smart home technology, the needs of users, including physiological needs (functional needs) and psychological needs (emotional needs), will be fully considered. In terms of physiological needs, the smart design of the building system has improved people's quality of life to a certain extent, bringing convenience and comfort to people's lives. In terms of psychological needs, the smart design of the building system enables information exchange between human and computer, and improves psychological services to users. Therefore, it is extremely important to satisfy users' needs in the application of interactive experience. The second is rational planning [30,34]. In the application of interactive experience technology, we should follow the principle of the reasonable use of time, space, and family members, so that the whole family can benefit from the smart design of the building system. The third is to build a model [20,72]. From the perspective of cognitive psychology, let users participate in the early design stage of smart buildings, put forward reasonable requirements, and provide a basic model for the interactive experience of the smart building systems.
Thirdly, in the smart building system, the user's real reaction determines the degree of acceptance of the smart building system. The user's feelings mainly depend on the following characteristics of product technology-stability performance, interaction mode, emotional expression, and so on [78,83]. Therefore, the smart building system should have a certain stability, and no matter how much user participation, all kinds of smart designs can perform their duties, adapt to more use environments, and ensure the stable performance of the smart environment. It should have a good human-computer interaction mode, and create a smart building environment that can be exchanged, so that the building is no longer a cold space; it should have human emotions, feel the emotional changes of users at all times, and adjust the home environment according to the changes, alleviate the mood of users, and be users' close friends.

Future Research Suggestions and Directions
The interaction design principle based on interaction experience is not only on the smart design, but also on the user's inner needs and motivations, especially how to realize the humanization of smart buildings and the effective communication between people, and to promote the development of a sustainable life; that is, to adhere to the principle of "people-oriented" smart design. A "people-oriented" approach is the development direction of various research content of smart buildings in the future. Only the interaction at the technical level and the spontaneous interaction between human and computer can create a more harmonious and friendly human-computer interaction environment for users, and the smart building system will develop towards a more intelligent, human-oriented, and personalized direction, providing more comfortable, safe, and effective smart services for home needs and promoting sustainable living.
In addition, with the emergence of 5G technology, people's use of the Internet and the Internet of Things will reach a new level-the ultimate experience of high efficiency, rapidity, and economy. The development of 5G smart buildings will receive more and more attention.
Author Contributions: All authors contributed equally to this work. All authors wrote, reviewed, and commented on the manuscript. All authors have read and agreed to the published version of the manuscript.