You are student of an engineering college and you want to buy a book of .Net Application development. This book is not available in your city so you have to buy it from an online book shop. For this purpose, you browsed a lot of online book houses and in each book shop you searched the inventory of book house.

Finally, in Caserta Book house you got a book with same name. To confirm that it is your required book you see the content of book in Book View. Seeing the book as it is related to your requirement you will add it to shopping cart.in Caserta book shop you have to fill an order form to complete your order process. Draw Communication diagram of above scenario.