Suppliers: Auto Suppliers & Suppliers to Product Manufacturers


The OEM assembly plant schedule (or sequence) generates requirements for in-house manufactured and outsourced parts and commodities. The schedule is typically broadcast (sent) to OEM suppliers, which forms the basis for planning and scheduling at the supplier level.


The following is a typical configuration for a Tier 1 supplier, in this example headliners for cars.

Representative image showing the Auto OEM product and OEM Suppliers production relations

At the OEM level there are 2 car assembly plants. Cars are produced in 2 car models in 5 body styles and 5 colors. Each body style and color requires a distinct headliner. The headliner supplier operates 2 press lines, one of which produces headliners for both car assembly plants; while the other produces for only 1 car assembly plant.

Optessa provides the complete functionality to model such planning and scheduling problems at the supplier level.

Tier 1 / 2/ n supplier plants have complex scheduling needs

The complexity arises from:

  • Need to be just in time with auto OEM assembly schedule
  • Demand derived from multiple customers, assembly plants and after market
  • Demand includes product variety and combines high and low volume SKUs
  • Need to balance multiple production lines
  • Need to maintain high throughput
  • Inventory buffers: standard and build ahead inventories
  • Smooth overtime or idleness across multiple lines
  • Minimize changeover / setup times and costs
  • Manage auxiliary resources such as tools, dies, racks, pallets etc.
Optessa MLS Provides Complete & Effective Solutions for Suppliers

Some examples of auto suppliers who have obtained significant benefits by applying Optessa MLS for scheduling.

  • Engines
  • Powertrain
  • Stamping
  • Machining and Diecasting
  • Seating and Interior Parts