## 3 Results
### In Situ (Museum/On-Location)  
3.2.1. Case Study 4: \"The Fort Ontario AR Experience\"  
Fort Ontario, founded in 1755 in upstate New York, served various military roles and sheltered Jewish refugees during WWII [84]. Now a State Historic Park, visitors explore its history through self-guided tours and iPad displays in the Enlisted Men's Barracks. Recognizing the need to enhance visitor experiences, the project investigated AR technologies to integrate historical photos from the 1860s to recent events, enriching \begin{table}
\begin{tabular}{l c c c c c} \hline \hline  & & \multicolumn{4}{c}{**Age**} \\ \hline  & & **Total** & **16–25** & **26–50** & **Over 51** \\ \hline \multirow{3}{*}{How do you feel about the length of Memories} & Too short & 1 & 1 & - & - \\ \cline{2-6}  & About right & 14 & 3 & 4 & 7 \\ \cline{2-6}  & Too long & 1 & - & 1 & - \\ \hline \multirow{3}{*}{What did you think about the level of information presented?} & Not enough & 3 & 1 & 1 & 1 \\ \cline{2-6}  & About right & 13 & 3 & 4 & 6 \\ \cline{2-6}  & Too much & - & - & - & - \\ \hline \multirow{3}{*}{Do you think the information was relevant?} & Yes & 15 & 3 & 5 & 7 \\ \cline{2-6}  & No & 1 & 1 & - & - \\ \hline \multirow{3}{*}{Do you feel you learned anything new?} & Yes & 15 & 3 & 5 & 7 \\ \cline{2-6}  & No & - & - & - & - \\ \cline{2-6}  & Not sure & 1 & 1 & - & - \\ \hline \multirow{3}{*}{Did you want to continue through Memories of Kellie until the end?} & Yes & 16 & 4 & 5 & 7 \\ \cline{2-6}  & No & - & - & - & - \\ \cline{2-6}  & Not sure & - & - & - & - \\ \hline \multirow{3}{*}{Did you find it easy to use?} & Yes & 15 & 4 & 5 & 6 \\ \cline{2-6}  & No & - & - & - & - \\ \cline{2-6}  & Sometimes & 1 & - & - & 1 \\ \hline \multirow{3}{*}{Did you understand what you needed to do?} & Yes & 15 & 4 & 5 & 6 \\ \cline{2-6}  & No & - & - & - & - \\ \cline{2-6}  & Sometimes & 1 & - & - & 1 \\ \hline \multirow{3}{*}{How much did you enjoy using Memories of Kellie?} & Not much & - & - & - & - \\ \cline{2-6}  & Somewhat & 1 & 1 & - & - \\ \cline{2-6}  & A lot & 15 & 3 & 5 & 7 \\ \cline{2-6}  & Yes & 14 & 4 & 3 & 7 \\ \cline{2-6}  & No & - & - & - & - \\ \cline{2-6}  & Not sure & 2 & - & 2 & - \\ \hline \hline \end{tabular}
\end{table} 
Table 6: User testing responses to quantitative questions. the understanding of the fort's extensive history and allowing the public to view archival photos in context while exploring the site. User Interactions  
The project aimed to enhance the Fort Ontario experience using AR. An AR version of the self-guided tour booklet was created, with high-resolution photos of mapped areas. Developed with Artivive, the AR app allows visitors to point their smartphones at booklet photos to view historical slideshows while exploring the fort grounds (see Figure 7). Interactive items in the AR app interface provide additional historical information and access to the Fort Ontario website. This enhances the visitor experience by allowing them to view historical information in context on-site. The app functions as a visual extension of traditional audio tours, making history come alive through interactive and immersive AR technology. Evaluation Method and Results  
The self-guided AR tour was evaluated through a cognitive walkthrough (CW). In this case, the CW method was used with real end-users. The CW was focused on the first four points in the guidebook to identify usability issues. Conducted on-site at Fort Ontario, the method assessed each task step and user interface interaction, generating the typical CW's quick, low-cost feedback [85]. The within-subjects design ensured all participants experienced the same AR tour, while still collecting data to compare. User feedback highlighted problems like difficulties using the app in windy weather and challenges for users with arthritis. Despite 80% of participants being new to AR, they found the instructions easy to understand. All participants liked the app and would use it again. The developer felt that the evaluation provided valuable insights for future improvements.