Every organization have tasks, these tasks represent operations. When operational challenges and issues emerge, operations research is conducted to address those challenges and issues.
Operations research represents a synergy of analytical skills and management related roles. Objective is to solve complex issues of an organization, when they arise, using analytical skills.
You can develop analytical skills from taking analytical tests, reading analytical books, and from practical experience in the field. Your computing, mathematical, and statistical knowledge will complement your analytical skills.
Analytical skills enhance your decision-making potential, they are not strictly bookish knowledge that you can memorize and be done with.