Citrix offers two products to deliver hosted resources to users: XenApp and XenDesktop. Although the products share great similarities (and since v7.x the underlying architecture is now common, FMA rather than IMA), have their unique characteristics.
What product do you need? When and why? In this article I’m trying to help you make this decision based on a decision tree.
During the course of this article I’m assuming you’re designing a XenApp / XenDesktop 7.x environment, however the principal is equal for XenApp 6.x and XenDesktop 5.x.