Classes that define a document

Several families of classes define the basic document and give it the ability to:

Create a document.

Store data.

Call up a presenter to create a view to show the data.
Pass commands between objects.

The class families shown in Figure 4 define the Basic Document framework. Each family grouping has at least one class; the Document and Store families have many. Classes are grouped into families based on common traits. Normally, all the classes in a family are derived from a single base class.

These families of classes are presented in their relative order of importance. Not all classes are equally important. Some define basic objects upon which substantial elements of a framework are built, while others merely create processes that manage these objects and their interactions.

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