• COM (Component Object Model) is the ¡°Microsoft¡± standard to
share objects between several applications.
• Automation is a ¡°Microsoft¡± technology to use COM objects in an
interpreted environment.
• ActiveX component is a ¡°Microsoft¡± standard to share objects between
several applications even in an interpreted environment.
• OLE (Object Linking and Embedding)  means that the document can be
linked in the document of an other application OLE and can be edited in that
other application (In place editing).

VBScript(Visual Basic Script) is a subset of VBA. It is a simple
interpreted Basic language
Only Windows/Unix « compatible » language
Can call CATIA Objects
Directly launchable from a saved macro
Weak help to programming
Very ¡®light¡¯ internal editor
No type is used. The system tries dynamically to call methods and
properties of objects.
Sequential programming
Poor User Interface tools