AMS is a suite of software intended to make day to day administration and monitoring of an Asterisk PBX server easier. It contains a daemon that acts as a proxy to Asterisk's Manger Interface and a GTK GUI application for monitoring and administration.
PAD stands for Portable Application Description. PAD is an XML-based open format to describe downloadable applications. By using the PAD system, developers save time by having to create a description of their software packages only once.