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Exhibit 4.4-4 Condition Dialogue Structure
Field Description of Field/Attributes
1 Message Header
2 Condition Attributes
3 Additional Attributes
By incorporating the relevant Additional Attributes (Full list of attributes can be found
in Chapter 17 of the specification), the conditional dialogue can be configured to
accommodate the Farecard Usage and Add Value Transactions as proposed by WP4.
4.4.4.2 Card Management Data
Variable access dialogue can be utilized for Financial Audit Data and Negative List
messages. Variable access dialogues are related to accessing, by name, data items that
are resident on the device. A variable is a data item that can assume any one of a set of
values. The Variable Access dialogue structure is illustrated in Exhibit 4.4-5.
Exhibit 4.4-5 Variable
Access Dialogue Structure
Field Description of Field/Attributes
1 Message Header
2 List of Variable Names
3 Variable Value List
By adding the relevant Variables indicated in the field three of the message (Full list of
variables
can be found in Chapter 17 of the specification), the Variable dialogue can be
configured to accommodate the Negative List and Financial Audit Data messages as
proposed by WP4.
File management dialogues allow remote access to file systems on the devices and are
structured as illustrated in Exhibit 4.4-6.
Exhibit 4.4-6 File Management Dialogue Structure
Field Description of Field/Attributes
1 Message Header
2 File Transfer Direction
3 File Name
4 File Attributes
The File Management dialogue can be formatted to accommodate certain WP4 Card
Management Data and System and Device Data messages (Appendix B). This can be
achieved by incorporating the appropriate File Attributes (Full list of attributes can be
found in Chapter 17 of the specification) into the dialogue.
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