This industry designs and maintains aircraft and spacecraft for private and for government use and often designs the tools and components that service these aircraft as well. These industries are inter-related because so many aerospace components can be designed for both military and private use. There is more and more overlap between aerospace and defense applications and the needs of the private sector. Basic manufacturing functions are needed by all parts of this manufacturing sector: inventory control, shop floor applications, and accounting functions that are basic to all types of manufacturing. As more and more specialized software is developed by industry, the specifics of a generalized manufacturing package will not be applicable from one industry to another. Specialized templates and applications will be needed for aerospace and defense applications. Security and physical safety concerns are often issues for industries like these and the software requires additional safeguards.