TwinCalc, calculation and billing software

TwinCalc is a calculation and billing system for the printing company Tiskárna Twin. I developed the software from 2004 to 2007, while working for RNDr. Jiří Dvořák who also owns the copyright. As for 2014, the system is still used by the company.

Features

• A multi-user system with Windows client application with simple wizard-like navigation.
• Customer and contact management.
• Price calculations for orders based on number of copies, used paper, printing techniques etc.
• Invoice management, due date monitoring.
• Bill of delivery management.
• Cash desk management.
• Export and printing of orders, invoices, bills of delivery, cash receipts etc.
• Simple statistics of incomes.
• Archive of legacy orders.
• User authentication for restricted operations.
• Automatic database backups.

Project status

Screenshots

Implementation

• File-based central Microsoft Access database.
• Windows application created in Visual Basic 6.0.