FIXatdl v1.1 is now a an official FIX standard. Follow this link to download the full specification (xsd schema files, Word Documentation, samples etc).
You must be logged in to the FPL website in order to access the FIXatdl schema files. Registration is easy, immediate and free; it only requires your name, entity and email address. Click on the above "Website Registration" link to be taken directly to the FPL Registration Page. Be sure to log in, and when you return to this page, be sure to "refresh" to ensure you gain unlimited access.
Be sure to see slides 6 and 7 here that shows how a single strategy can easily be expressed in both a English UI and a Japanese UI with very little effort.