A Data Model

This appendix contains these topics:

A.1 Contract Billing

The flowchart on the following page illustrates the relationships between the principal physical tables for invoice formatting for the Contract Billing system.

To present the information in an uncluttered format, the lesser control tables, worktables, and tables for seldom-used features have been omitted.

A.2 Contract Billing Invoice Format Definition

Description of image040.gif follows
Description of the illustration image040.gif

A.3 Service Billing

The flowchart on the following page illustrates the relationships among the principal physical tables for invoice formatting for the Service Billing system.

To present the information in an uncluttered format, the lesser control tables, worktables, and tables for seldom-used features have been omitted.

A.4 Service Billing Invoice Format Definition

Figure A-1 Service Billing System Table Relationships

Description of Figure A-1 follows
Description of "Figure A-1 Service Billing System Table Relationships"