Operations research approach (OR) / Management Science

1. Define the problem (decision situation with difficulty or opportunity)
2. Classify the problem into a standard category
3. Construct a model that describes a real world problem
4. Identify possible solutions to the modelled problem and evaluate solutions
5. Compare, choose and recommend a potential solution to the problem.

Differs to Simon's Decision Making Process because t seeks to classify a problem into a standard category.

Based on mathematical modelling which transforms a world problem into an appropriate prototype.