## 4 UX Evaluations
### Results of the UX Evaluations  
The user groups for the evaluation were mainly made of by **women** (60% of Paestum users and 51% of Florence users). The medium age registered was around 34 years old, coming mainly from Italy. They came from schooling environments for what concerns Paestum (76%) and from humanities (archaeology, teaching, architectures) for Florence (88%); their technological vocation was addressed to smartphones (70% out of the global users) and PCs (55% out of the global users). Game _console_ and HMD devices were not fully experienced yet, as for Paestum and Florence users. General observations of users, in both locations, revealed a **great sense of curiosity** towards the VR application: people stayed in a row a long time before their turn to play with ArkaeVision Archeo, together with friends, parents and relatives. While waiting, they expressed their amazement, astonishment, but also their doubts about any possible issue they could encounter once worn the HMD over their heads. They made fun watching other people playing, trying to figure out what they were supposed to do; they also asked for more information about 3D modeling, the final place of installation, the price and other technical questions. They were particularly interested in the visual aspect of virtual \begin{table}
\begin{tabular}{c c c} \hline \hline  & **Paestum** & **Florence** \\ \hline _period of the year_ & 15–18 November 2018 & 21–24 February 2019 \\ \hline _occasion_ & Archeovirtual & TourismA \\ \hline _total days of evaluation_ & 4 & 4 \\ \hline _time of VR experience_ & 7 & 10 \\ \hline _time of UX session_ & 15 & 23 \\ \hline _average age of users_ & 31 & 38 \\ \hline
**observations** & **70** & **75** \\ \hline
**questionnaires** & **70** & **75** \\ \hline \hline \end{tabular}
\end{table} 
Table 1: Data collected in two occasions of evaluation. reality; they were continuously asking \"How did you do this?\", \"How is that so vivid in colors?\", \"How did you also include birds and flowers?\". These questions simply arose from what they could see on the big monitor showing the experience of somebody else who was playing at that moment! The **general feeling** of users were therefore motivating and intriguing. Both in Paestum and in Florence, a high percentage of users (respectively 89% and 76%) autonomously approached the interactive area and stayed till the end of the experience. By the way, observations made on users while playing with the ArkaeVision Archeo showed a great ability and predisposition of **using the system alone**, without any particular help or support by technician (at Paestum 14% made it completely alone and 50% with very small help while in Florence 23% made it alone and 42% with help). The remaining 36% in Paestum and 35% in Florence asked for help only at the very beginning of the experience or at the end (needed to wear the HMD and to take it off). Maybe in Florence the VR experience was a bit challenging, given the state of advancement of specific tasks of the application: here, observations revealed a high level of usability, but still hesitations of users in proceeding with the exploration completely alone. Such datum could not be evaluated, but still remarked by UX evaluator. Users reported **interaction** as natural (Figure 16) (88% in Paestum and 79% in Florence), quite intuitive to be used with the HMD and hand controllers (84% in Paestum and 50% in Florence) as well as practical in the handling and in the body movements (87% in Paestum and 81% in Florence). The small shift in results between the two locations about usability is surely referable to the average age of users: in Paestum, we had youngers--who are usually more accustomed to such interactive devices--while in Florence, we had quite more adults less addicted to VR and HMDs. Users almost **never felt tired, disturbed or annoyed** during VR exploration of ArkaeVision Archeo (95% out of the global users).