The policy also makes provisions for strengthening the ministry's strategic and operational capacities. Management scientists help businesses to achieve their goals using the scientific methods of operational research. Other ships are retrofit to compensate for weaknesses perceived in their operational capabilities. Ethiopian Airlines is responsible for aircraft maintenance and operational management. This reduces possible confusion, especially when viewing operational or strategic level maps. Its reserve element consisted of 4,827 personnel of the Operational Reserve. There are three main types&colon; strategic, operational and tactical. The most important issues concerned tactical and operational level warfare. It is updated with operational and deployment guidance in . Modernizing and streamlining of administrative and operational processes took place. These are the operational and training aircraft. Depth analysis requires greater control over operational parameters. DevOps aims to maximize the predictability, efficiency, security, and maintainability of operational processes. It also delivers training for crews preparing for operational deployments. These deal with operational and tactical matters.