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The UA model for the DomainDownload Program is presented in the following tables and figures. Collectively they define the components that constitute this Program. For clarity, the figures present a progression of portions of the model that complement the contents of the tables and illustrate the Program’s composition.

The type definition for the DomainDownload Program precisely represents the behaviour of the Program in terms of UA components. These components can be browsed by a Client to interpret or validate the actions of the Program.