home
0%
Product Design — Hesai Technology — 2021–2022

Visitor System

An all-in-one system that delivers a fresh experience for both visitors and employees — shifting from paper-based chaos to a unified digital platform serving 4,800+ annual visitors across 4 locations.

Timeframe
May 2021 – Oct 2022
Role
Product Designer & PM
Team
1 PM, 2+ Engineers, 1 Designer
Scope
0-to-1, End-to-end
Deliverables
4 platforms, 150+ interfaces
Visitor system overview

Hesai was at a stage of rapid growth. Their visitor process still ran on paper.

100+ visitors per day at 4 locations. But the check-in process was entirely paper-based — creating security risks, communication gaps, and a poor first impression at a company preparing for its NYSE IPO.

01

Invitation process required initiating multiple approvals through the OA system — area access, meals, and gifts each required separate flows with no unified tracking

02

Paper-based front desk registration posed information security risks and created no audit trail as Hesai prepared for its NYSE listing

03

Complex information synchronization between staff and front desk — communicated verbally or via chat, leading to constant last-minute scrambles

04

Zero formal welcome experience for visitors — no brand touchpoint, no feedback channel, no before or after-care

Clarify with users

I interviewed different parties to understand the full visitor journey from every angle — employees, admin staff, and visitors alike.

6
Co-workers in Sales & HR departments
4
Administrative staffs at 4 locations
2
Visitors with recent experience
Image 2

Define the problems

Efficiency — Inviters
5+
working days
3×3
approvals
5+
people

The invitation process required initiating multiple separate approvals across the OA system. Staff had to track each one manually.

Confidentiality — Admin
Paper form was lost. A visitor didn't leave after the visit.

As the company prepared for its IPO, these security risks became completely unacceptable with zero audit trail.

Company Culture — Visitors
0
Before/after-care for visitors. No welcome, no feedback.

No formal welcome, no feedback channel. The first impression didn't match the company's ambition or IPO-readiness.

Turn three pain points into design opportunities

Efficiency

Build an integrated system for all visit-related approvals?

Red zone + Gift + Dining → One unified invitation form

Confidentiality

Store information and track visitor status in one place?

Paper forms → Digital dashboard with full audit trail

Company Culture

Deliver information and gather feedback before and after visits?

Nothing → Visitor mini-app with company content & feedback

Let engineers join the table

We explored three different approaches before landing on the right one. Each rejection taught us something about what users actually needed.

Calendar-based wireframes🙅
Image 3

Too rigid. Visits don't follow calendar logic — they follow approval logic. Wrong mental model from the start.

One-step form🫣
Image 4

Too overwhelming. All fields on one page caused high error rates in testing. Cognitive overload for busy employees.

Detailed information page🤯
Image 5

Too complex. Information density made it impossible to scan quickly when managing multiple visitors simultaneously.

The winner — Progressive Disclosure
Split the invitation into staged panels

There are already too many forms in the OA system. Instead of adding another long one, I split the invitation flow into three focused panels: today's visits, a step-by-step invitation form, and future visit tracking. Each step reveals only what's needed — reducing errors and making the experience feel light instead of burdensome.

One system, four touchpoints

Rather than building a single app, I designed a platform that meets each user where they already are — mapping each role to their natural tool and context.

Employees
Feishu Web & Mobile
Invite visitors, track approvals, manage records
Administrative
Feishu Admin View
Approve requests, prepare, view visitor data
Visitors
WeChat Mini-Program
QR check-in, company info, leave feedback
Front Desk
Android Tablet Kiosk
Instant QR scanning, walk-in registration
Image 6

Three users, three journeys

For Staff
Input → Submit → Track → Confirm departure

All approvals (red zone, dining, gifts) now run in parallel through one form instead of three separate OA flows.

Five-stage invitation flow (basic info → area access → meals → gifts → confirm)
System auto-initiates approval and sends SMS to visitor after approval
Real-time modification and tracking of visitor records
For Administrative
Review → Approve → Check data

Admin staff get a unified dashboard to review upcoming visits, approve access, and view real-time statistics across all 4 locations.

Unified visit calendar with upcoming and in-progress requests
One-tap approval for dining reservations and restricted area access
Real-time visitor statistics dashboard across all 4 locations
For Visitors
SMS → Mini-app → Front desk → QR scan → Checked in

Visitors arrive prepared — they've seen the company profile, know where to go, and check in with a single QR scan. No paperwork, no waiting.

WeChat Mini-Program — no app installation required
Company culture content and facility information delivered before arrival
Single QR scan check-in at front desk kiosk, post-visit feedback collection

Training, testing, iterating

Training

Created user manuals and video tutorials. Held 2 workshops for Sales and HR departments to ensure confident adoption from day one.

6 iterative releases

20+ functional modifications across 6 releases. Standardized approval flows and added privacy policy in collaboration with the Legal team.

Mobile expansion

Launched desktop first, collected real usage feedback, then designed and shipped the mobile Feishu version in September 2022.

By the numbers

The system launched in October 2021 and went through 6 iterative releases, including a mobile expansion in September 2022. It completely replaced the paper-based process.

78%
Reduced invitation time
60%
Reduced approval time
417
Internal Users
2,776
Visit Requests
4,810
Total Visitors
4.6
Visitor Satisfaction
Launched Oct 21, 2021
Mobile Sep 12, 2022
6 releases
20+ iterations
150+ interfaces

"The system reduced manual check-in errors to near zero and gave us a verifiable audit trail — critical as we prepared for our NYSE listing."

Internal feedback — Operations team

What I learned from my first 0→1 product

Understand users
Develop tailored solutions for each role

Each role had fundamentally different needs. The same system needed to feel simple for visitors and powerful for admins. One product, four distinct experiences designed from the ground up.

Cross-dept complexity
Parallel approval flows demand tight state mapping

A single visitor invitation could trigger up to five parallel approval chains. I worked closely with engineering to map every possible state, running 60+ test scenarios before launch to surface edge cases.

Be agile
Phased delivery beats big-bang launches

We launched desktop first, learned from real usage, then adapted for mobile. The second release was significantly smoother because we had real-world signal instead of assumptions.

Manage expectations
Designing for the org, not just the user

Enterprise design means navigating organizational dynamics. Getting buy-in from security, IT, and operations was as critical as the interface design itself. Facilitation is a core design skill.

"The experience fundamentally changed how I approach collaboration, communication, and the long game of shipping software."