Noun
operational research (uncountable)
Alternative form of operations research
In short, management sciences help businesses to achieve their goals using the scientific methods of operational research. Source: Internet
The enormous number of vessels involved and the frequency of engagements meant that statistical techniques could be applied to evaluate tactics: an early use of operational research in war. Source: Internet
Operational research is an important subject and taught at most South African universities at undergraduate and a postgraduate levels. Source: Internet