THE TL;DR
Challenge
A seafood vendor suffered heavy financial losses from manual inventory guesswork. I designed a high-trust digital storefront that aligns real-time inventory deadlines with physical supply-chain realities, while breaking down interaction barriers for senior users.
Strategy
I aligned a weekly cutoff cycle with legacy supplier schedules, utilizing a trusted Stripe pipeline and WCAG standards to ensure a safe, familiar purchasing experience for seniors.
Outcome
I replaced supply-chain guesswork with a predictable workflow for the vendor while creating a stress-free ordering system that encourages digital adoption for older adults.
QUICK FACTS
Role
UX/UI Design
Timeline
4 weeks
Platform
Mobile-first
Audience
Senior customers & business owner
01
02
The Customer Journey
Overcoming digital exclusion through an accessibility-first interface built for senior hand-eye coordination.
1
Heuristic 6: Recognition Rather Than Recall: I placed the three-step cutoff rules directly on the home screen. By giving clear, upfront visibility to the automated schedule deadlines, senior users instantly know how the fulfillment logic works without needing to search through a complex help document.
2
Motor-Skill Friction Reduction: Standard quantity drop-downs are frequently too narrow for senior hand-eye coordination. I engineered oversized form targets with massive padding to ensure non-technical users can make error-free adjustments without physical strain.
3
Mitigating Order Anxiety: Older audiences experience high anxiety regarding transaction finality. I built a dedicated order verification step with high-contrast text layout that explicitly totals the items before any financial interaction occurs.
4
System Status Transparency: A checkout success page shouldn't just say "Thank You." I included an explicit scheduling safety confirmation message to reassure users that their order is securely locked for Saturday distribution, completely removing post-purchase panic.
03
Preserving the Owner's Workflow
Automating logistics to replace manual guesswork with an error-free procurement blueprint.
1
The Ordering Cycle Matrix: I designed a weekly cutoff cycle that keeps ordering open from Saturday evening through Thursday at 11:59 PM. By hard-locking the digital storefront all day Friday, the system guarantees a static ledger for the vendor's procurement run. It keeps the storefront closed through Saturday's market distribution to allow for error-free data reconciliation before automatically resetting for the next weekly loop.
2
The Admin Portal Overview: Non-technical business owners suffer high cognitive load when forced to sort through chaotic spreadsheets on a busy market run. I designed a mobile-first merchant view that automatically strips away clutter—displaying only the final item aggregates required for procurement.
3
The Print/Export Utility: To respect the vendor's workflow habits, I integrated a physical one-click print option alongside a digital CSV export pathway. This simple utility allows her to interact with supplier data exactly how she prefers without forcing a complex technical learning curve.
04
Beyond the UI: Inclusive Design Architecture
To ensure the storefront scales seamlessly for all users, I integrated accessibility directly into the design framework rather than treating it as a final checklist item. Designing for an older demographic required strict adherence to specialized interaction patterns:
Visual Clarity: Enforced a rigid, high-contrast color palette exceeding WCAG AAA standards to accommodate natural age-related changes in visual acuity and color perception.
Target Precision: Engineered oversized interactive boundaries and hit targets to eliminate motor-skill strain and reduce accidental misclicks during checkout.
Cognitive Simplification: Minimized technical jargon and streamlined form fields to respect varying levels of digital literacy, ensuring a safe and familiar reservation loop.
05
Product Strategy: Phase 2 Validation & Risk Mitigation Plan
The Core Assumption
The success of this architecture hinges on two unvalidated assumptions:
1.
Customer Adoption Risk: Senior users will adopt a digital preorder loop over established physical market habits.
2.
Merchant Execution Risk: The vendor can accurately fulfill individual orders on distribution day using only wholesale totals.
Risk Mitigation & Service Design Fallbacks
Omnichannel Fallback Plan (Senior Adoption Risk)
The Friction: Testing may show seniors feel anxious using web browser receipts or email notifications.
The Solution: Pivot to automated SMS confirmations and printed pickup receipts. Sending clear, native text updates with pickup details leverages an existing habit and guarantees transaction confidence without altering the backend engine.
Customer-Level Manifest Utilities (Vendor Fulfillment Risk)
The Friction: Providing only an aggregate wholesale manifest solves buying guesswork but creates packing bottlenecks at the market stall if the vendor has to inspect individual customer screens or rely on word of mouth.
The Solution: Expand the Merchant Portal to generate an alphabetized Customer Fulfillment Manifest (digital + print-ready checklist). This allows the vendor to pre-pack individualized orders on Friday or rapidly check off items at the table on Saturday, eliminating fulfillment errors and leftover inventory.
Validation Testing Roadmap
Senior User Usability Audit: Moderated task-completion runs with low-literacy senior participants navigating the preorder and verification flow on mobile devices.
Target Benchmark: ≥ 85% task completion rate without physical strain or transaction hesitation.
Merchant Logistics Pilot: A 2-week live trial evaluating the accuracy and speed of using generated customer packing manifests during high-volume Saturday market hours.
Target Benchmark: 0% order discrepancy and faster customer throughput.