# Key Factors in the Implementation of the Internet of Things in the Hotel Sector
## 1 Introduction  
The relevance of the Internet of Things in the hotel sector is what this technology can contribute to the personalization of the experience of hotel clients, one of the latest technological trends in this sector [1]. The Internet of Things is nothing more than a system made up of people and objects (or only objects) that are connected and inter-related in order to transfer data and information so that the receiving objects undertake an action without the human being having to directly give that transfer order or undertake it, turning the objects into intelligent objects [2, 3]. Within the hotel sector, some of the applications of the Internet of Things are as follows [4, 5];  
* Wearable technology (for example, smart glasses) that allows you to identify and recognize a repeat customer facially (as soon as they enter the hotel) and gives information on their preferences and tastes, so that you can give personalized offers;
* Smart refrigerators that order online so as not to run out of product stock;
* Connected minibars that notify you when a product is picked up and needs to be recharged. This information will be used for future visits of the client, as you can prepare their preferences in the minibar;
* Facilities management, which manages the use and maintenance of facilities such as air conditioning, electricity, and water depending on the client's preferences and their presence (or not) in the room where it should be activated, allowing hotels to make economic savings by avoiding uncontrolled use and providing better customer satisfaction by adapting to their preferences;
* Mobile keys that allow customers to enter the rooms without the need for keys through an app installed on their mobile that also gives a notification when the room is available. Despite these applications and the relevance of the personalization of customer experience within the current hotel sector, with the Internet of Things being one of the factorsthat can most influence this personalization and one of the technologies that most hoteliers are supporting, many companies and hotels still doubt its use or are not willing to invest in the Internet of Things for different reasons, including its complexity, compatibility, benefits, costs, organizational preparation, and security, among others [6]. For this reason, and in order to take measures to increase the use of the Internet of Things in the hotel sector, this study focused on identifying the most influential factors in the decision of hotels to accept and implement the Internet of Things for their services. Decision-making is always supported by a set of factors that influence that decision, but these factors should not be taken into account independently, since in many cases, there are relationships of influence between them that can cause a factor to be more decisive and a slight modification in what this factor entails can change the decision made. Thus, for this research, a literary review was carried out that allowed us to establish a list of the factors that influence the adoption of the Internet of Things in the hotel sector, and subsequently, a causal map of the system was developed in which experts in technologies and hotels quantified and analyzed the most influential factors regarding the acceptance of the Internet of Things by these hotels. In data collection (for the construction of the causal map), interviews were used as an instrument, and a causal map was made for each of the interviewees. Subsequently, a global causal map was made using the average assessment values of the experts. This allowed its analysis through the FCMappers tool, which indicated the most influential factors, the factors that receive the most influence from the rest, and the most relevant factors within the system. In the following section, the initiatives that are being implemented regarding the Internet of Things in the hotel sector are contextualized and the factors that influence the adoption of the Internet of Things in the hotel sector are detailed.