This White Paper discusses end-to-end application performance management in the context of the impact to the business. It then highlights CA’s application quality and performance management solutions for both Web and mainframe applications, with particular focus on the integration of CA Wily with AQM Solutions’ TRILOGexpert APCTM for TriTuneTM with Performance Desktop. It concludes with the Enterprise Management Associates (EMA) perspective on the market in general, and on the CA solution in particular.