Hi

there is no much difference between producta and project. product is some thign that first it will be developed tested and sale it to clients where as project is taking teh erequirement develop test and then hand over to client

1) product will take lot of changes accordign to different clients and the nature of business.where as applciation take only few changes untill client satifies.

2) single product can be sold to multiple clients wehre as applciations are as per the client requirement

3) product--demo--client approve--sale

applciaiton--client requirement--develop--approve

Product Testing: Testing will be never ending as you have to test the product by keeping in view a lay man. As product will not have limited users example like www.yahoo.com it will be used by different users around the world round the clock.

Project Testing: Tester will release the application once all the requirements mentioned by client are tested. The application will be used only by the client and his related parties. A Project will have limited users. Example like some project related to a automobile industry.