Real World Case Studies

Lean Six Sigma has transformed organizations across industries by reducing waste, improving quality, and accelerating delivery. These case studies highlight how structured problem-solving and data-driven decisions translate into measurable business outcomes.

Finance: Invoice Processing

Global Corporation • 10,000 invoices/month

Challenge

Invoice processing took 5 days on average with 15% error rate, resulting in $50K annual late payment fees and supplier dissatisfaction (6.2/10).

Solution

  • Implemented OCR and automated data validation
  • Simplified approval matrix from 8 to 2 levels
  • Launched supplier portal for electronic submission
  • Created vendor master data standards

Results

64%Cycle Time ↓
80%Error Rate ↓
$200KAnnual Savings
40%Satisfaction ↑

HR: Employee Onboarding

Technology Company • 100+ hires/month

Challenge

28-day onboarding process with only 60% first-day readiness and new hire satisfaction of 6.5/10.

Solution

  • Redesigned for parallel workflows instead of sequential
  • Created dedicated Onboarding Coordinator role
  • Implemented workflow automation tool
  • Pre-provisioned standard IT equipment

Results

57%Time Reduction
97%First Day Ready
8.9Satisfaction /10
12%Retention ↑

IT: Incident Management

Service Desk • 1,500 tickets/month

Challenge

3.5-day average resolution time with 45% first-call resolution and CSAT of 65%.

Solution

  • Built comprehensive knowledge base for top 50 issues
  • Implemented auto-routing and empowered Level 1 agents
  • Deployed self-service portal with password reset
  • Added predictive analytics for proactive alerts

Results

66%Faster Resolution
74%First Call Fix
30%Self Service
85%CSAT Score

Additional Case Studies

There are also plenty of additional studies found in our User Guide designed for Yellow Belt students. You can consult the full document by pressing the button below.

Open User Guide