ATG’s Commerce Suite is a highly integrated solution that covers a wide variety of functionality. While this can be implemented on two servers for small, highly available sites, it is more common to see a set of server clusters for larger sites. Figure 1 below illustrates how the different ATG Commerce Suite products are typically connected together in an enterprise solution, and each major area is discussed below the diagram. Note that this is a simplified representation of an enterprise production implementation and more information is available in the latest Multi-Application Integration Guide. There are typically also staging and development environments that are similar to, but smaller than the production site.