Schema Document - Children with Disabilities (IDEA) - Alternate Assessment Caps - xml layout file. Author: Hector Tello - AEM Corporation Version: 7.1 Created: April 2011 Last Modified: April 2011 Includes: pbdmi-code-sets-7.xsd Includes: pbdmi-file-xmit-7.xsd The type of achievement standards to which the cap applies. Codes: ALT – Alternate (1% cap) MOD – Modified (2% cap) MISSING