I chose to implement a navigation bar at the bottom of my prototype’s screens, containing four tabs: store directory, navigation, product search, help menu.
Why? This design decision was informed by the results of a card sorting activity that I did, seen below. I recruited two participants to sort the features I wanted in my app into categories that made sense to them. Then, I combined the categories created by my two participants to inform the creation of my architecture diagram for the app. Finally, I used the main categories of the architecture diagram as the foundations for the tab.
In my directions preview screen, I have an interactable drawer that is able to be dragged up and down to reveal more or less of the store map. This feature must have good affordance -- otherwise, it might not even be used (since people won’t know it can be dragged without a proper affordance).
So, I added a little “pull tab” to the top of the drawer.
Why? This follows design standards set by popular apps, like Instagram’s comment section drawer. By following common design patterns for drawer features, I have provided a good affordance for its interaction.
Throughout the entire prototype, I practice repetition:
Color usage is repeated throughout similar elements: All route-related buttons are blue, the background is yellow, and minor CTA buttons are in white.
Spatial relationships are maintained between each group of elements in the product page. Only one typeface is used throughout all of the screens (Noto Sans). Rounded corners for elements.
Why? Repetition is a crucial element of the PARC principles for visual design. It also allows me to maintain a similar, familiar “feel”, ensuring the user experience is comfortable no matter what screen they’re on.
07
User Testing
My design decisions still need to be validated by actual users. Iteration based on feedback is key in UX. I recruited two participants for a moderated usabililty testing session, and discovered two findings:
Both of my participants first went to the navigation (map) tab to search directions for the BRIMNES item. During post-task questions, they clarified that they thought that they would be able to search for the item within that tab. Change: I added a search bar to the map screen to allow for this intuitive functionality. If I’m on a map, I should also be able to search directions directly on that map.
Change: I added a search bar to the map screen to allow for this intuitive functionality. If I’m on a map, I should also be able to search directions directly on that map.
Both participants struggled with figuring out how to scroll the carousel displaying all of the IKEA deals.
Change: I added clickable buttons on the side of the carousel, adding another affordance to how it can be interacted with (not just swiping).