how to start planning for a system or application?

@lady1993 (20692)
Philippines
April 27, 2013 4:12am CST
As my first project, I am supposed to make a system that will generate reports and convert them into excel files to be downloaded on the internet.. seems easy enough, but i do not know where to start.. We are using the php language and MS SQL application.. Can anyone suggest on how i should start the project? Creating ERD models? any model?
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