The document discusses a study on sustainable tourism at mountain huts. It gathered data on hut structures, equipment, management, and the landscape through various tools and sensors to monitor outdoor temperature, humidity, snowfall, precipitation, wind speed and direction, illumination, air and water quality, energy and waste levels, and tourist perception. The key points were on data gathering and management using open source modularity and an architecture of wireless sensor networks to display variables and identify areas for improving sensors, expanding the sensor list, applying the methodology to different contexts, and testing sensors to improve environmental quality data collection and landscape evaluation.