7. Commercial Web Sites

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1 7. Commercial Web Sites Welcome Introduction Avon Cosmetics Cirque du Soleil Clown Registry Dog Whisperer ebay Deals Internet Movie Database Just Giving (Charity) LinkedIn Shrek Movies TicketMaster What have we learned?...14 Page 1

2 7. Commercial Web Sites 7.0 Welcome You are invited to follow developments on our Web Site :- You can also join our Database Answers Community Barry Williams Principal Consultant Database Answers Ltd. 7.1 Introduction This Chapter will discuss Data Models for a number of different Commercial Web Sites. The approach in this Chapter is to discuss a number of independent and unrelated Data Models that have some interesting characteristics. We selected the Data Models in this Chapter because we found them interesting. At Database Answers, we do not have any association with any of these Commercial organisations What is this? Why is it important? What will I Learn? Page 2

3 7.2 Avon Cosmetics Here is the link to the Data Model on the Database Answers Web Site :- We created this Model in response to a request from a man who had been in a car accident and was not able to work. With the use of our Database, based on this Model, he was able to help this wife and feel good about himself and the support he was able to give his wife. Page 3

4 7.3 Cirque du Soleil Here is the link to the Data Model on the Database Answers Web Site :- We created this Model because we enjoy Cirque du Soleil and try to arrange our company outings to coincide with their visits to London, England. It shows an example of Inheritance, where Performers are a Sub-Type of People. Page 4

5 7.4 Clown Registry Here is the link to the Data Model on the Database Answers Web Site :- We created this Model because the Clown Registry was featured in an episode of CSI on TV here in England. Page 5

6 7.5 Dog Whisperer Here is the link to the Data Model on the Database Answers Web Site :- We created this Model because we enjoy the Dog Whisperer when it was on TV here in England. It shows an example of Inheritance, where Performers are a Sub-Type of People. When we watch the TV show, it soon becomes apparent that Cesar Millan (the so-called Dog Whisperer ) has a very structured approach to solving dog s behavioural problems by focussing on the Dog s State of Mind, which always ends as Calm and Submissive. The foundation is that all problems have prescribed Treatments which are designed to achieve a desired outcome. This gave the TV program an interest beyond just dogs. Page 6

7 7.6 ebay Deals This Data Model was created to help people keep track of their ebay Deals :- Page 7

8 7.7 Internet Movie Database This Data Model appears on this page :- This version shows Entities and Key fields (but no attributes) :- Page 8

9 This version also shows the attributes :- Page 9

10 7.8 Just Giving (Charity) This Data Model appears on this page :- This is a Logical Model showing Inheritance :- Page 10

11 This is a Physical Model showing how Inheritance can be implemented in a relational Database :- Page 11

12 7.9 LinkedIn This Data Model appears on this page :- Page 12

13 7.10 Shrek Movies This Data Model appears on this page :- Most of the Data Models have been created using a very affordable Modelling Tool called Dezign. This one was created using ERWin. Page 13

14 7.11 TicketMaster This Data Model appears on this page : What have we learned? In this Chapter we have learned the kind of techniques that are used to create Data Models for Databases that support some of the most popular Web Sites on the Internet. These can be very useful if you are thinking about creating your own version of some commercial web site. Page 14

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