2025
Seoul Oasis

This project connected two products into one business: a web-based ERP that runs internal operations, and a mobile Sales Force Automation (SFA) app that puts the same operational intelligence into the hands of field sales reps. Instead of designing them as separate tools, I approached them as one ecosystem — a rep's order placed at a customer's door should be visible to a warehouse manager and a finance controller within seconds, not by end of day.
My role spanned the full process: stakeholder research, information architecture, user flows, wireframes, high-fidelity UI, a shared design system across web and mobile, prototyping, and developer handoff.
The organization was running on multiple disconnected third-party systems layered on top of manual processes — separate tools for sales, inventory, accounting, and customer management that didn't talk to each other. Field sales reps recorded orders by hand, then re-entered them later, which meant delays, duplicate data entry, inventory mismatches, and management flying blind on what was actually happening outside the office.
Goal: Replace the patchwork with one connected ecosystem — a web ERP for internal operations and a mobile SFA app for the field — sharing the same real-time data, so every department is working off the same picture.

ERP (Web) — Dashboard with AI-powered analytics, CRM, Sales, Purchase, Inventory/Warehouse, Accounting, HRMS, Payroll, Assets, Approvals, Reports, Admin. The dashboard surfaces AI-driven insights — trends, anomalies, and forecasts — so executives get a head start on decisions instead of a pile of spreadsheets to interpret themselves.
SFA (Mobile) — Visit planning, GPS check-in, route optimization, order taking, live stock visibility, collections, customer history, promotions, and offline mode with automatic sync. Access is role-based across Warehouse Gatekeeper, Manager, and Sales Person — each sees a tailored view built around their day, not a one-size-fits-all app.
The core loop: A rep checks in at a customer site → places an order on the spot → it syncs to the ERP → a manager sees it live, and the warehouse sees updated stock. What used to be a next-day report becomes a real-time event.
Executives moved from raw reports to AI-generated insights and forecasts
Faster order processing and less manual data entry
More accurate, trustworthy inventory data across warehouse and sales
Real-time visibility into field sales activity for managers
Faster approval cycles with clear status tracking
Significantly reduced manual reconciliation time for finance
One consistent experience across desktop and mobile — no relearning between platforms
Enterprise complexity and usability aren't in conflict when research stays continuous and the design system is shared. Connecting ERP and SFA into a single ecosystem — instead of treating them as separate products — turned scattered, delayed, third-party-fragmented data into one real-time, organization-wide view. That's the difference between a tool people tolerate and a system they actually run their business on.


