Three components are essential. One component is a comprehensive plan that outlines multiple scenarios and potential disasters. The first step in any plan is to define the processes that will occur during disaster response. A second component is the multilateral training of personnel who will be involved in disaster response. Real-life exercises and simulations help train first responders and government personnel who are involved in addressing the impact of a disaster. This may include providers of utilities, essential services, sanitation, transportation, and medical services. These training exercises can identify the deficiencies in current processes and highlight how to improve those processes prior to an actual emergency. The third component is the acquisition and allocation of the necessary technology, equipment, and supplies needed for a comprehensive and effective response. For any emergency response plan to succeed, it must acquire the appropriate technology that supports interagency communication and information sharing. There are software technologies available that allow any agency to create and maintain a complete communication system that includes not only first responders but also the support groups that serve those affected by the disaster. It is also important to provide and stock necessities that may become limited during a disaster, including medical supplies, fresh water, and food.