Abstract: A weapon management system includes a management device, interface units, software downloaded into the interface units, a power network, and a communication network. The power network provides electrical power to the management device and the interface units. The communication network connects the management device to the interface units for transferring electrical signals and data between the components. The interface units and the software downloaded into the interface units are highly reconfigurable, allowing for simple, easy, and fast configurability and expandability for evolving weapon systems. Further, the weapon management system has the capability to add interface units to an existing architecture for expanding and evolving weapon systems.