Development of a tourist added value service for the city of Madrid

A general need for tourists is the availability of guides that tell them what to see in the cities they visit. Normally, paper guides are used, mobile applications that digitize physical guides or official tourism services that inform tourists in person. However, in the last decade, huge amounts of data released by institutions and companies have become available in many cities that can be used to create value-added services. This article describes the development of a mobile application that aims to facilitate tourist visits to the city of Madrid, so that the functionality it offers is implemented as a value-added service that uses data from various sources of information in order to create a system that offers multiple functions aimed at planning visits to monuments and other places of interest. The value of this application lies in the exploitation it carries out on the data it collects, from which it creates services such as recommending plans, generating itineraries, planning visits or searching for plans using geolocation.