This is a report of the initial work on a project to develop a method of assessing the relationship between the resources available to and relative readiness of Army maneuver and firepower units. A concept is presented which differentiates between the current method of reporting on the status of resources available to tank battalions (AR 220-1) and an alternative which presents estimates of the capability of a battalion to generate ready platoons trained, equipped and provisioned for specific operations. This concept highlights the difference between available resources (inputs) and a unit's Specific Operational Capability (SOC) to perform an OPLAN defined mission (output). The concept is evaluated in a simulation term AURA (Armored Unit Readiness Assessor) and the results provide examples of how readiness is effected by tasking and attrition assumptions. The report also raises issues concerning the purposes for readiness assessment and the tasks remaining to further evaluate readiness assessment methods for Army Units.