Why Testing is necessary ???

                          Testing is a process of execution of program or application  which is developed by a human being.We humans no matter who we are or where we belong from have something in common which is committing mistakes.Mistakes sometimes are very trivial and can be ignored but sometimes are so grave that if ignored they produce disastrous results .

           It is not that mistakes are done intentionally and someone knowingly does that. Mistakes are committed because of various reasons which vary from miscommunication between the people, incomplete input transfer ,Blind spots  to bad assumptions by the person etc.

Our work can have mistake due to any reason  so checking of the product becomes necessary but since some of our mistakes are due to our own blind spots and bad assumptions it's always better if someone else checks our work  as another person is more likely to spot our mistakes .

There are various reasons which clearly tells why testing is necessary and below are some of them

• Testing points out errors and defects done during SDLC.
• Testing is required for effective performance of the product.
• It ensures product quality which creates reliability,confidence and customer satisfaction.   
• It ensures a high-quality product which shouldn't fail in any condition to the customer ,thus saving high expenses in maintenance and keeping a good stay in business.