What is an object model?
VBA interacts with its host application (e.g. Microsoft Word or WordPerfect) by accessing the application’s objects. These objects are identities given to different parts of the program, and to the documents the program creates. The object model is simply the way VBA communicates with its host application. Every application has a different object model, and each object model is designed to best suit the way the application functions. For example, the object model for Microsoft Excel is different than the object model for Microsoft Word.
