Operational and Support Cost (O&S)

O&S cost includes all direct and indirect costs associated with operations and maintenance.

It includes:

• Consumables such as fuel and oil
• Piece cost required to procure components/system (labor & materials)
• Maintenance of equipment/(s)
• Storage cost associated with inventory, finished product, etc.

These costs typically are recurring cost.

Typical O&S cost elements that should be considered during cost estimation process and where in the time continuum this cost occur are shown below.