There is a growing number of great SQL Server performance Monitoring systems out there. Recently, the more traditional on-premises solutions have been joined by software as a service (SaaS) solutions. This blog contrasts the typical architecture of an on-premises Solution with that of a SaaS solution. Of course, components will vary in name and structure from one vendor to another, but the key concepts discussed here will be represented on one form or another. This table lists some of the key components: