a computer shop with many branches would like to make one central database that can be managed by though the internet. 

and can be viewed by the shop owners and see reports 

let us know, 

how experience you are?
What is your level when to come to database modeling?
Have you ever worked with report generating project?
how fast you are with coding?

Please do not paste your profile; I need you to understand the project before I start interviewing you