Usability findings

Fieldstone Checkout Study

3 participants · August 24, 2026

89%
task success
90.8
SUS (of 100)
6.0
avg ease (of 7)
3
tasks measured

1. What we tested

We asked three real users to complete three key tasks on an e-commerce website: find a rain jacket they’d actually buy, apply a promo code and complete checkout, and check the status of their order after a few days. The goal was to see how easy and reliable these steps were in a real-world scenario.

2. How it went overall

Out of three participants, all completed the rain jacket search and checkout successfully, but one participant failed to find the order status. The checkout process took an average of about 184 seconds, and while two people found the order status easily, Sam couldn’t locate it on the page and had to check his email instead. Overall, the system usability score was strong - around 90 out of 100 - but the failure to find order status and confusing checkout errors show serious problems in key user flows.

3. What got in people's way

Poor visibility and inconsistent placement of order status - critical

Participants expected to find order status at the top of the page, where they’d naturally look. Instead, it was hidden at the bottom. Sam said, “There’s nothing up there besides cart, so I don’t like that,” and couldn’t find it directly. This made the task frustrating and required extra effort - like checking an email - which is not what users expect. This is a critical flaw because users don’t know where to look, and the system doesn’t guide them.

Unclear or missing error feedback during checkout - critical

Every participant encountered red error messages like “Could not be processed” during checkout, but none could remember or understand what the message meant. Jordan said, “I didn’t even read it. It was in red. I knew something was wrong,” and Sam asked, “Could not be a process. I’d like to know why.” There was no explanation or help to fix the issue - users just kept retrying without knowing why. This leads to confusion, frustration, and failed purchases.

4. Task by task

5. What we recommend

1. Move the order status to a visible, intuitive location (like the top of the page) - users expect it there, and hiding it causes confusion and frustration. Make it clear and accessible without requiring extra steps like checking emails.

2. Improve checkout error messages - when an error occurs, show a clear, plain-language explanation (e.g., “Your payment method is not supported” or “Try a different card”) so users understand what went wrong and how to fix it.

3. Add a clear success path after checkout - ensure users can immediately see their order status after purchase, and make it easy to find without searching or relying on email. This builds trust and reduces user stress.

Metrics

Task outcomes
Find a rain shell3/3 succeededApply a promo & check out3/3 succeededCheck your order status2/3 succeeded
SuccessWith difficultyFailed / gave up
Time on task
Find a rain shellMedian 3m 11s · n=3Apply a promo & check outMedian 3m 04s · n=3Check your order statusMedian 2m 27s · n=3
One attemptMedian

Every row uses the same scale, from 0 to 3m 48s.

Tasks with fewer than 8 timed attempts show every attempt as a dot rather than a box: quartiles drawn from a handful of measurements would suggest more precision than the data carries.

System Usability Scale
68 (industry avg)P02 · Marcus T.100P04 · Jordan A.97.5P05 · Sam K.75Average 90.8 of 100
Ease per task (SEQ, 1-7)
You're heading to the PacificNorthwest in October. Find a water…6.7 / 7You have the promo code FIELD10from an email. Use it, and complet…5.7 / 7A few days have passed. Find outwhen your order will arrive.5.7 / 7

Highlight clips

Moments the researcher marked. Play inline.

Added to cart. I love it when it does that. I don't need anything more than that incrementer. · P04 · Jordan A.
Pay now, huh. I don't know why that didn't work. · P04 · Jordan A.
I love that it gives me an order number right now. · P04 · Jordan A.
It's always down at the bottom. Love it. · P04 · Jordan A.
Pit zips that actually reach. Hopefully that means pit zips I can actually reach. · P02 · Marcus T.
The 2-digit month and 2-digit year is all I need for CC expiry date. · P02 · Marcus T.
I would expect either a login button at top right or an ORDER STATUS link at the bottom. Boom. Right where I'd expect it. · P02 · Marcus T.
What are these colors? Show me. · P05 · Sam K.
I would expect a SAME AS SHIPPING checkbox for billing address. · P05 · Sam K.
I would expect something up by cart to let me access my order. · P05 · Sam K.