Dialog Procedures

When the CA ADS runtime system executes a dialog, one or all of the following procedures can take place:

Premap processing: Performs optional processing prior to displaying a map to the user. For example, the dialog can retrieve a record that contains the data to be displayed by the map. The dialog premap procedure is not automatic.
Mapout: Displays a formatted screen (map) for use by the user. The user uses the map to supply data and to specify how this data is to be processed. For example, a dialog can display data from a customer record; the user then updates the record and requests that it be modified in the database. The mapout procedure is automatic when there is no premap processing; otherwise a mapout occurs when the DISPLAY command is issued.
Mapin: Receives data and the requested response from the user. For example, if the user requests that the customer record be modified, the values that the user keys into the map data fields are then moved into variable storage. The dialog mapin procedure is performed automatically when the user presses a control key.
Response process selection: Selects a response process based on the response entered by the user. The runtime system performs this procedure automatically.
Response processing: Processes data as directed by the terminal user's response (for example, modifies the customer record) and specifies the next activity to be executed. Response processing is not performed automatically.