In Forrester's 116-criteria evaluation of application life-cycle management (ALM) vendors, we identified the nine most significant software providers in the category — Atlassian, CollabNet, HP, IBM, Microsoft, PTC, Rally Software, Rocket Aldon, and Serena Software — and researched, analyzed, and scored them. This report details our findings about how well each vendor fulfills our criteria and where they stand in relation to each other to help application development and delivery professionals select the right partner for their software-fueled business innovation efforts.