As the problem scope was quite specific and no competitors were found, I read several articles to gain an understanding of the fundamental requirements when designing for senior users.

Here are some main findings: Once I grasped the general requirements and considerations, I decided to delve deeper and gather real user feedback to gain a better understanding of their needs and preferences.

Here are the major needs and pain points I collected from the user interviews:

After gaining a comprehensive understanding of the user needs and pain points through my research, I focused on determining the specific details of the user flow. I ensured that the flow remained linear, allowing users to navigate either forward or backward. However, on the cart page, I provided flexibility for users to modify order details if needed. This feature also enables them to correct any mistakes they may have made while adding products.

To visualize and consolidate my ideas, I created sketches of the main screens. I chose to design the flow as a linear process, avoiding branching out to different pages with distinct functions. This approach allows users to proceed either forward or backward, simplifying the navigation options. To ensure that the site was user-friendly for seniors, I made sure to: Incorporating the client's request for visual design consistency with their existing bus-booking website, I integrated the following research findings into my design approach: Ensuring that text sizes are larger than 18px, colors are chosen appropriately, and other visual elements are designed to be easily visible for all users.

I selected a color palette from the Model Color Palette for Color Universal Design Guidebook, the guidebook made for accessibility. I included "up" and "down" buttons to assist users who may not be aware of the scrolling functionality, enabling them to navigate the page vertically. I have included a button (orange button on the left) that allows users to restart their navigation in case they get lost at any point while using the website.

After completing the high-fidelity design, I created a final prototype and presented it to Kamishihoro City Hall. I requested that real users be involved in the process, and we were able to have a few seniors test it. Although I was unable to attend in person (as I work remotely), my project manager kindly conducted the usability test on my behalf. Here are the findings:
Considering that the majority of users indicated a preference for adding items from the product list, I've updated the design to allow them to directly add items. Here is a video showcasing the final test, illustrating the entire process from ordering to delivery by drones.

Although the target users were completely different from my generation, I succeeded in empathizing with them and creating a product that they could easily use. I truly realized the power of research in the process, as I would not have been able to accomplish this without it.

I enjoyed every step of the process and put a lot of thought into the users' needs. I wanted to ensure that seniors didn't feel limited by their age and ability to use digital products. I'm thrilled with the results and am grateful for the opportunity to help improve their confidence through my design.