ocr: MAJOR POMPONENIS OF OPENDOC Compound Storage Uniform documnent data Automation (Bento) management transfer CORBA-compliant OUS SOM Figure 2. The "pillars" of Openboc are fourfold. What everyone sees firsthand is compound docunent man- agement, through which all the on-screen real estate is Tandled, Stomge ofa compound document is a single, compound file, made possible in OpenDoc by/ Apple's Bento technologs Uniform Data Transfer refers t0 nech- anisms such as drag-and-drop and object linking. Automation, finally, enables scripting and event-handling control for complex object interactions.