The dialog-based architecture can be combined successfully with the other architecture types as long as dialog-based views are only used at the end points of the navigation structure.
AVKON supports view switching within an application and, more significantly, view switching between applications. This feature raises issues for modal dialogs, such as AVKON forms and queries. When there is such a modal dialog open, possibly with new data entered, and another application view is switched to (presumably by another application), then the data associated with the open dialog may have to be disposed of.
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