*Article* **An Architecture for Service Integration to Fully Support Novel Personalized Smart Tourism Offerings**

**Andrea Sabbioni \*, Thomas Villano and Antonio Corradi**

> Department of Computer Science and Engineering, University of Bologna, 40126 Bologna, Italy; thomas.villano@studio.unibo.it (T.V.); antonio.corradi@unibo.it (A.C.)

**\*** Correspondence: andrea.sabbioni5@unibo.it

**Abstract:** The continuous evolution of IT (information technology) technologies is radically transforming many technical areas and social aspects, also reshaping the way we behave and looking for entertainment and leisure services. In that context, tourism experiences request to enhance the level of user involvement and integration and to create an ever more personalized and connected experience, by leveraging on the differentiated tourist services and information locally present in the territory, by pushing active participation of customers, and by taking advantage of the ever-increasing presence of sensors and IoT (Internet of Things) devices deployed in many realities. However, the deep fragmentation of services and technologies adopted in tourism context characterizes the whole information provided also by customer sensing and IoTs (Internet of Things) heterogeneity and deep clashes with an effective organization of smart tourism. This article presents APERTO5.0 (an Architecture for Personalization and Elaboration of services and data to Reshape Tourism Offers 5.0), an innovative architecture aiming at a whole integration and deep facilitation of tourism service and information organization and blending, to enable the re-provisioning of novel services as advanced aggregates or re-elaborated ones. The proposed solution will demonstrate its effectiveness in the context of Smart Tourism by choosing the real use case of the "Francigena way" (a pilgrim historical path), the Italian part.

**Keywords:** smart tourism; social sensing; sensors; e-tourism; distributed-architecture; Spark; Zenoh; FaaS; Elasticsearch
