software support is done by N operators that support M customers.
The same customer can be supported by multiple operators.
Customers 'pay' operators by means of tokens that our company provides (at a cost).
Operators invoice us.
We invoice customers.
We need a web application that make it easy to control that:
- the same token is not used twice
- the same token is not invoiced twice
- all tokens are invoiced to customers
The application will use a simple Firebird 1.5.5 database.
The structure of tables is attached.
The application was prototyped by using Delphi.
Please read inside the Delphi units as some important information is written there.
Please state which language you will use to write the application.
You will install the application in a site of ours to which you will be given access.