## 1 Introduction  
Dynamic Remotely Operated Navigation Equipment (Drone) is the aircraft that can fly without humans onboard. It is also known as Unmanned Aircraft Systems (UAS) or Unmanned Aircraft Vehicle (UAV). Currently, the technology of the drone is well developed and has many applications. The service of drone filming and photography is getting more and more popular, but the service provider does not have any information about how to keep the service quality at a high level. The aim of this research is acquiring the knowledge of the service quality indicators' weights from experienced experts precisely. In order to archive this purpose, this research discusses the SERVQUAL scale, multiple criteria decision-making (MCDM), and key publications that are related to those fields after reviewing the development and research of the drone and defines the purposes at the end of this section. At the beginning, the research of the drone focused on fixed-wing aircraft and on military applications. Since 2012, there were many scholars and institutions researching the multi-rotor drone and promoted the development of its technology [1]. Currently, the drone is very popular and has many applications with various devices attaching to it. Therefore, there are more and more research studies being done by multi-rotor drones. For example, [PERSON] et al. [2] measured and monitored the shoreline in Australia by multi-rotor drones attached with cameras for two years. [PERSON] et al. [3] proposed a study to build 3D models from aerial photos taken by multi-rotor drones automatically. In addition to the application of drones with the optical camera, [PERSON] et al. [4] researched geothermal environments with drones integrated with thermal sensors. [PERSON] et al. [5] proposed a method to evaluate the efficiency of the solar panel by multi-rotor drones with an infrared sensor. [PERSON] and [PERSON] [6] proposed an impedance-based non-destructive testing method combined with drones for structural health monitoring of civil infrastructures. In a real file, the application of film production or aerial photography by drones integrated with an optical camera is the most popular. Currently, there are many clips of television programs filmed by drone. The demand of drone filming and photography to record outdoor activities from organizers that do not have equipment and pilots promote the development of this newly service--drone filming and photography. However, when the technology of filming and photography by drone is mutual, unfortunately, the research about service quality is insufficient and has become a significant research gap. Most service providers do not realize that their service can or cannot satisfy the consumer. They do not have enough information about the indicators and its weights of service quality either. Therefore, in order to solve this real life problem and fill the research gap, analyzing the weight of service quality indicators for drone filming and photography more precisely is needed. As for the measurement of service quality, [PERSON] et al. [7; 8] proposed the SERVQUAL scale and many scholars have confirmed that it has high reliability and validity [9; 10; 11; 12; 13]. SERVQUAL has become a tool for measuring the quality of service [14]. There are five dimensions and 22 indicators of SERVQUAL. The five dimensions and their connotations are described using the following [15]. 1. Tangibility: physical facilities, equipment, and appearance of personnel. 2. Reliability: ability to perform the promised service reliably and accurately. 3. Responsiveness: willingness to help customers and provide prompt service. 4. Assurance: knowledge and courtesy of employees and their ability to inspire trust and confidence. 5. Empathy: caring, individualized attention provided to customers. In order to analyze the weight of indicators and dimensions of SERVQUAL for a particular service, one of the MCDM must be selected.