we have customer who want to make some product like this or more specifically she needs replica of this product which is a generic inventory,product,customer etc management system. And the reqirement document she sends contains just module names like
1. Inventory Management 2. Order Management 3. Vendor Management 4. Customer Management 5. Front E-Commerce Store 6. Online Purchase Orders 7. Payment Integrations 8. Products Management 9. Shipping Management
Being a database designer how to model these things as i don't have any clear requirements document. From where should i start to go into he right direction. Any suggestions?