Sander Chen — AI Product Designer
Case Study · Selected Work

Merchant Management System.

Company
Xtraspots (Co-founder)
Year
2022 — 2023
Role
Founding Designer · PM
Surface
3-sided Ops Platform · 0 Hardware
Impact
Local hosts → Times Square launch
Merchant Management System — key visual

The project started as an exit-flow redesign and evolved into a full merchant management system — an operational control center for hosts, not just a screen.

Hosts needed to know what required action, what the system could handle automatically, and where risk still lived. The redesign drew those three zones clearly into the dashboard.

The real problem was not the UI.

The real problem was an operational model that relied too heavily on merchant action to keep parking sessions accurate. When hosts had to verify too many steps manually, the process became fragile, slower to complete, and more likely to generate disputes — costs that landed on both drivers and the platform.

Research insights — merchant operational overload
Fig. 01 — Where merchant action was load-bearing and where it shouldn't have been

Manual action should be the exception, not the operating model.

Let the system bill. Let the merchant intervene.

Instead of making merchants responsible for every overtime decision, the system automatically triggers overtime billing after the grace period — reducing host workload, protecting merchant revenue, and keeping the rules transparent for drivers.

Automated overtime billing flow
Fig. 02 — Automated overtime billing after grace period

Manual verification, only when the system can't.

The interface still supports manual verification — but only when the system cannot confidently resolve a session on its own. Merchant action becomes an exception path, not the default.

Manual verification exception path
Fig. 03 — Manual verification surfaced only for exceptions

A landing page that behaves like ops.

The host landing page was redesigned as a lightweight operations dashboard — surfacing actionable reservations, checkable spots, and high-priority tasks first, so merchants quickly see where attention is needed without touching every reservation.

Merchant dashboard as a control surface
Fig. 04 — New host landing page as operations control surface

Checkable spots, modular setup, live earnings, automated nudges.

Accessible checkout spots. Checkable spots surface on the landing page by priority, so merchants handle the right session first.

Checkable spots prioritized on landing
Fig. 05 — Checkable spots, priority-first landing

Modular availability & feature settings. For merchants managing multiple locations, availability schedules and spot features are built as reusable modules — significantly reducing setup time and friction.

Modular availability and feature settings
Fig. 06 — Reusable availability and feature modules

Earnings dashboard & dynamic pricing. A clear real-time view of revenue, with seamless dynamic adjustments to hourly rates — merchants maximize profitability without leaving the dashboard.

Earnings dashboard with dynamic pricing
Fig. 07 — Earnings dashboard with dynamic hourly pricing

Smart push notifications. Proactive, automated alerts notify drivers of expiring sessions and late fees — reducing friction, enforcing compliance, and eliminating manual tracking for hosts.

Automated smart push notifications
Fig. 08 — Automated push notifications for drivers

From booking flow to merchant platform.

Driven by user feedback, we evolved a simple booking flow into a robust merchant platform. Automation drastically reduced hosts' manual workload and drove real-world adoption — from local homeowners to our Times Square launch.

Real-world adoption and launch
Fig. 09 — Real-world adoption, from local hosts to Times Square
0 HW
No merchant hardware required
3-sided
Driver · Host · Platform ops