I take this opportunity to suggest that freshers should search the web for general information and then post how they would approach the problem, seeking advice on how to improve it. For example, if you had searched the web, you would have found information on an 8-step process at Innovation Excellence: [URL=http://www.innovationexcellence.com/blog/2013/05/27/8-step-process-perfects-new-product-development/]
I also hope that you appreciate my stand (sent to you as a private message) on posts that lack sufficient details about a scenario to provide precise advice.