Slides from session at SaaS University in Chicago July 1, 2009. SaaS multi-tenancy -- shared infrastructure and resources in a single application that serve multiple clients -- has been the subject of great debate that often begins and ends at the technical / architectural level. Like any good technology decision, multi-tenancy should be driven by the underlying business strategies explored in this seminar. Beyond the acknowledged benefits of improved operational efficiency multi-tenancy allows the SaaS vendor to monetize beyond the application, streamline sales and gain important competitive advantages.