The SAOUG have merged two subject areas: infrastructure and middleware. Ranging from hardware to the application server, virtualization solutions and operating systems, the SAOUG takes all topics in these fields into account. It dedicates appropriate space to the infrastructure technologies while focusing on Oracle, Solaris, Oracle Linux, Sun Hardware and Oracle VM. The SIG events are based on the knowledge of experienced users and specialists who pass on their know-how and will exchange views with the attendees. The Infrastructure & Middleware Community organizes half day and/or one-day events in the form of Special Interest Groups (SIGs) on a regular basis (3 to 4 times per year).