Is this reasonable: classify each element as either an Object or property

Hi Folks,

I am thinking that it is useful to identify each element in a schema as either an Object or a property.

Objects are described by one or more properties.

The value of a property may be either simple or an Object.

Here is an example of an XML document containing two Objects (Book and Person) and three properties (title, author, name):

<Book>
    <title>The Implementation of Functional Programming Languages</title>
    <author>
        <Person>
            <name>Simon L. Peyton Jones</name>
        </Person>
    </author>
</Book>

Notice that two of the properties (title and name) have a simple value. One property (author) has an Object value.

Is this a reasonable desire?

/Roger