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Operational definition, Operational auditing, Operational semantics, Operational level of war, Operational system, The Operational Art of War, Operational risk, Operational conversion unit, Operational View, Standardized approach (operational risk), Operational Requirement, Operational Group (Poland), Journal of the Operational Research Society, Operational acceptance testing, Operational amplifier, Operational Service Medal, Operational risk management, The Operational Art of War Vol. 1: 1939–1955, Operational excellence, Operational Test and Evaluation Force, Operational database, Director, Operational Test and Evaluation, Operational Service Medal for Afghanistan, Operational Land Forces Command, Operational artificial intelligence, No. 237 Operational Conversion Unit RAF, Operational historian, Operational manoeuvre group, Common operational picture, Australian Operational Service Medal, Operational Research Society, Operational Command South, Geostationary Operational Environmental Satellite, Operational data store, Operational bill, No. 226 Operational Conversion Unit RAF, Operational due diligence, Operational Land Imager, Operational Mentoring and Liaison Team, 25th Operational Weather Squadron, Operationalization, The Journal of Operational Risk, Common Operational Datasets, Operational plan, Operational Medical Orderly, No. 240 Operational Conversion Unit RAF, Independent Operational Group Narew, The Operational Art of War II: Modern Battles 1956–2000, Operational modal analysis, Operational technology, Operational transconductance amplifier, Local operational picture, 9th Operational Weather Squadron, 11th Operational Weather Squadron, Commander Fleet Operational Standards and Training, 26th Operational Weather Squadron, Operational Command North, 15th Operational Weather Squadron, 21st Operational Weather Squadron, Operational-level agreement, No. 2 (Coastal) Operational Training Unit RAF, Operational Silo Test Facility, Operational loads 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