Optimization by Problem
Which decision is holding you back?
Every optimization starts with one choice: what to schedule, pack, route or allocate. 4colors solves each family with all its constraints together.
Best-known project schedules, a truck-loading challenge final and a logistics challenge win.
Optimization by Problem
Scheduling and sequencing
Jobs, machines and people in an order that respects every deadline.
Packing and loading
Items that fit by geometry, weight and compatibility, and the trip after.
Routing and transportation
Vehicles and stops sequenced under time windows and fleet capacity.
Assignment and allocation
People, skills and equipment matched to work under real rules.
Production and supply-chain planning
Production, inventory and transport decided as one plan.
Network and infrastructure optimization
Routes, flows and capacity through networks with shifting bottlenecks.
When the problem crosses categories
Many valuable problems combine scheduling, routing, packing and resource allocation. That is where one integrated model can be more useful than solving each decision in isolation.