DuPont Taiwan
Unlocking Operational Efficiency Through Sync-Layer Design
Goal
Build a visitor tracking system fully integrated with the internal management platform.
Constraint
The internal system had fixed APIs and couldn’t be modified. We had to design around the constraints.
Impact
→ 100% adoption in 3 months
→ Check-in time reduced by 70%
→ Real-time tracking and faster permit approvals
01 Overview
DuPont Taiwan needed to reduce operational overhead, minimize security risks, and speed up visitor approvals — all while working within the constraints of a rigid internal management system. The company was struggling with a manual, paper-based visitor flow, costing valuable time, exposing security blind spots, and frustrating both staff and guests.
Duration
3.5 months (May 2022 – August 2022)
Team
1 Product Manager
2 Product Designer (me)
2 Engineers
02 Workflow
Before our intervention, DuPont’s visitor workflow looked like this:
Process Overview
Bullet version of the steps
1. Employee emailed forms to visitor
2. Visitor filled them out manually and sent it back
3. Employee scanned and uploaded forms
4. Manager manually reviewed
5. HR finalized approval on visit day
Sequence Diagram
Explain the two visitor types (scheduled/unscheduled)
03 Constraint
DuPont’s internal management system had a fixed API — no room for creating new fields, endpoints, or architecture-level changes. We had to work within these constraints and reframed the problem from “Building a visitor experience” to “Designing a system that automates key tasks and syncs with the internal management system without modifying it”
04 Approach
Before jumping into solutions, we evaluated the biggest friction points in the current system — considering both the user experience and the business risks they posed.
Hybrid Sync Model
We developed a hybrid sync model to bridge the visitor and internal management system — enabling real-time updates while keeping the legacy backend intact.
• Push Sync: Real-time updates triggered by QR scan, form completion
• Batch Sync: Periodic updates for reporting, analytics
• Reverse Sync: Invitation data flows from internal system to visitor system
05 Solution
With this new mindset, we refined our focus. Instead of overhauling the entire system at once, we targeted the biggest pain points first:
Visitor Management enabled employees to invite visitors, track status, and streamline approvals.
Visitor file upload enabled automatic processing and status updates within the system.
Dashboard gave HR quicker control over visitor status and processing.
QR code-based check-in improved security and made visitor identification faster and more reliable.
06 Impact
By designing a solution around existing system constraints, we delivered meaningful operational improvements without requiring backend changes.
100% system adoption in 3 months
Tracked via internal access logs across all departments
Reduced check-in time by 70%
Measured through time-and-motion studies at counters
Automated visitor logs
QR code scans + logs now generate a complete digital trail
HR time reduced by 75% per visitor
Estimated savings of 5–7 minutes by removing manual uploads
07 Reflection
Designing around constraints
We framed the constraints as product requirements and focused on designing experiences that still unlocked business value.
Cross-functional alignment matters
Early involvement with engineers helped us plan a realistic integration layer that still delivered strong UX and business outcomes.
