Creational Design Patterns in Modern C++ - Application Framework - Implementation

The video tutorial introduces a framework for solving real-world problems by creating a new project. It covers adding document and application classes with virtual functions, implementing a text document class, and executing the application through a main function. The tutorial highlights the issue of tight coupling between the application and text document classes and suggests using a factory method to allow the application to work with any user-defined document class. The video concludes with a promise to explore the factory method implementation in the next video.

How does the text document class relate to the document class in the framework?

What is the problem identified with the application framework when using different document types?