Compita website. Here you can find details of available services, including training, offered by Compita
Process Professional Assessment Method Overview
This document will give you an overview of the PPA method. The full PPA method is available for use under licence, and is defined in a set of handbooks which can be obtained from Compita.

Software Engineering Institute website. The SEI website has copies of the CMMI® model constellations in machine readable form, and a wealth of information about assessments and process improvement.
Automotive SPICE© website. On this site you can download copies of the latest versions of the Automotive SPICE© PAM and PRM.
iNTACSTM website where up to date versions of the Automotive SPICE© model can be downloaded and news and events associated with Automotive SPICE© can be found.