In an online environment, each procedure or procedure step may be associated with a procedure step action diagram and a display. You define the possible series of interactions between a user and the procedures in a business system through these associated displays. The display for block mode will be a screen.
An interaction in a dialog refers to a single instance in which a user requests an action of the system and the system responds.
From the user's perspective, an interaction follows this scenario:
The following illustration shows a very simple online interaction that begins with a user entering data on the starting display.
From the designer's perspective, an interaction involves an indeterminate number of procedure steps. Remember that a procedure step is the unit at which a single screen is defined.
You can design the system action in one of the following ways:
If the user's request can be satisfied without displaying further data, the procedure step can be defined to respond with a display (Result Display 1) in the same format as the starting display on which the user originally entered data. If a different display is needed to satisfy the request, the possibilities depend on the target environment.
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