The top-level or lower-level design entity that is compiled using the current Compiler settings. When you set a lower-level design entity as the compilation focus, the lower-level design entity inherits parameter and assignment settings from the higher-level entities in its hierarchy.

You can specify the compilation focus in the General page in the Settings dialog box (Assignments menu), with the Compiler Settings wizard, or by choosing Set Compiler Focus to Current Entity (Project menu) or Add Current Entity at Top Level (Project menu).