Oracle Applications installs in a machine it creates a base directory with the name ORACLE. This is the base directory for accessing the application. Oracle Applications supplied in three flavors 1. Production Oracle Applications: used for implementing in any organization. 2. Vision Oracle Applications: used for Demonstration or Training purpose. 3. Test Oracle Applications: used for R&D purpose Product Directory Structure of Oracle Applications VISDB: Consists of Oracle 8i / Oracle 9i / Oracle 10g Database executable files. VISORA: Captures 8.0.6 / 9iAS / 10giAS middleware Database executable files. VISCOMM: Captures Control Script files, which are used to Start or Stop the Application Services. VISDATA: Captures all .DBF files. VISAPPL: Captures all Module Specific Directories and Some Special Directories. GL_TOP: (APPL_TOP/GL/11.5.0 ) is one of the Module Directory of Oracle Applications. It consists of a release directory (i.e. 11.5.0) under which Forms, Reports, BIN, LIB,...