Building on the power of AppleScript, AppleScript Studio in Xcode allows script writers to create Mac OS X applications that use AppleScript scripts to control complex user interfaces. Additional scripting tools for Mac OS X are also available from various open source groups. For anyone wishing to automate repetitive procedures in Mac OS X, there's the Automator application. With its visual development environment, the Automator application offers a simple drag-and-drop process of selecting and connecting individual workflow actions--which can include shell scripts and AppleScript scripts--that users want to automate.