The OpenAHLTA baseline has been used for the past decade to document millions of patient's encounters.  It has evolved into a world-class EHR from input by clinical experts in the Army, Navy, Air Force and Marines.  It is easy to use and train as well as download and set up.  It is ideal and lightweight for disaster and mass casulty scenarios where communications may be non-existent.  It also creates medical records which are compatible with AHLTA-Theater and AHLTA.