Chapter 9. Creating Document-Driven Applications
Most user interface toolkits divide applications into document-driven applications and all other applications. Documents are some form of user state that is (usually) editable and often maps to a file. The key feature of a document-driven application is that it can have several copies of a set of objects that correspond directly to something that the user thinks of as a document.
The classical example of a document-driven application is a text editor, an application that provides multiple windows, each showing a representation of a text file. A more unusual example would be a web browser. Although the user rarely edits or saves its documents, each browsing session (either a window or a tab) can ...
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