Greetings !!
Will the software be used in one desktop or computer , or you can access it from many computers?
How many Login systems will be there? e.g. Admin, Employees etc. Based on that the permissions modules will be given.
So, the system will work this way:
1. You bring the stock, make entry of the products with their names, codes, Price, Stock Amount etc
2. Once customer comes to buy or you get any order, you go to the Sales module, and enter the details about the Quantity and price of the products getting out.
3. You can see REPORTS e.g. Daily sales, Daily profit, Weekly, Monthly profit, Stock Report etc.
I will recommend you to use PHP as the CMS, so that the application can be accessed from anywhere, just using the needed ID and PASSWORD.
I hope to hear soon from your side.
Rajeev