Attribute symbols

In both trees of the object tool, objects are displayed. The values displayed for each object fall into two categories: the object's attributes (grouped under the attributes folder ) and its once routines (grouped under the once routines folder ).

The following symbol scheme is used to categorize each item:

• An attribute of a basic Eiffel type, such as INTEGER or DOUBLE
• An attribute that is a reference to an object
• A Void reference
• An object that is expanded

For .NET system, special symbols are used to describe :

• An object that is external (i.e., not known as an Eiffel type)
• A static value object that is external (i.e., not known as an Eiffel type)
• A static value object that is known as an Eiffel type