The Scope class represents the set of scopes searched when an expression is evaluated. Each running application, procedure, frame, field script, and event block has an associated Scope object.

The Scope object for an application contains a single scope, the application's global symbols. Other Scope objects contain additional scopes (generally the same scopes that were available at compile time when the object was defined). The symbols for a dynamically declared field are added to the scope associated with the frame.

A Scope object terminates when its associated running application, procedure, frame, or event block terminates. The Scope object for a field script terminates when the enclosing frame terminates.

For more information about the levels of scopes in frames and procedures, see the Programming Guide.