1. When designing large-scale web-applications, you can: partition the system, m
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Question
1. When designing large-scale web-applications, you can: partition the system, make reads/writes consistent, or make reads/writes highly available. Which one of these three is necessary to achieve scalability? (3 points) Explain your answer
2. From the previous question, explain why it is not feasible to implement all of the three mechanisms in large-scale web-applications? Be thorough and explain your answer.
3. Explain the differences and similarities between a shopping cart and a wishlist/gift-list on an e-commerce application(5 points).
Given these similarities and differences, explain how you would go about implementing each one(5 points).
List the major JSP pages and Servlets you need for both with explanations of their functionality. For the ones that are common to both, you may only need to list them once.
Explanation / Answer
3. Explain the differences and similarities between a shopping cart and a wishlist/gift-list on an e-commerce application(5 points).
Answer:
shopping cart list:
At Shopify, we know the value of secure carts for shoppers who are browsing the inventory of an ecommerce website. A cart should keep track of all of the products that a customer intends to purchase. For instance, if an online store sells clothing, a customer can look in the cart to see if the sizes of all of the garments are correct. The shopping cart list also lets a customer know the quantities of each item. In addition, the prices, discounts, shipping cost, and total balance can be found on the shopping cart list. With one quick glance, a customer can see what he or she ordered as well as how much it will all cost. Plus, our cart solution provides customers with the option of changing quantities, sizes or other important details of an online order. These features add to the convenience and efficiency of a transaction made on a website of any kind. In some cases, a customer will ‘abandon’ an order for any number of reasons. Part of our cart solution provides eBusiness owners with a way to recover emails of visitors who have abandoned orders. Who knows? Perhaps an email from the online store will refresh the person’s interest in the items in his or her cart. We take care of many of the Internet transaction details so the owner of an eBusiness website can focus on increasing the appeal of his or her products.
wish list:
The software wish list plays a significant part in the process of conducting business online. With this feature, we help business owners to open up the door to potential sales. Also, a wish list is an invaluable organizational tool for visitors to an online business. This type of software gives customers the opportunity to make note of products that appeal to them. They may not want to purchase the products at that time, but may return in the future to do so. In addition, many people send out their wish lists to friends and family so they will know what gifts to buy for an upcoming birthday or other celebration. A wish list also serves as a reminder for a person who may not remember the name of a particular product seen on a website. A software wish list takes the place of a written reminder that a customer jots down about a particular product. A wish list can’t be lost or thrown into the garbage can by mistake! A wish list serves another purpose by sparking a customer’s interest in a similar item on an eBusiness website. He or she may see another interesting product while checking out one on his or her wish list. In short, there are many ways that a wish list can add to the bottom-line of an ecommerce website
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