Some areas of applications are
Purchasing, Procurement and Exploration
Quantities and timing of purchase
Replacement policies
Rules for buying, supplies
Finance, Budgeting and Investment
Credit polices, account procedures
Cash flow analysis , investment portfolios
Personnel management
Selection of suitable personnel on minimum salary
Mixes of age and skills
Marketing
Product selection, timing
Number of salesman, advertising
Production management
Physical distribution
Manufacturing
Facilities planning
Maintenance and project scheduling
Research and development
Project selection
Reliability and alternative design
Determination of area of research and development