A brief overview
An oversimplified version of a fictitious social network application is taken to apply the design patterns discussed in this book. In this application, only some use cases relevant for placing the design patterns have been discussed.
The main application functionality revolves around the users signed-up in this application. Users have connections to other users in the application. Users can post short messages and their connections can like them if they want. The messages cannot be edited or deleted once posted. When a user signs in to the application, the first page displayed is the home page containing message posts from the signed-in user's connections, displayed in reverse chronological order along with his/her own posts. Every user has a personal wall page that displays only the message posts from the signed-in user in reverse chronological order, which is private to the individual user, and with appropriate privacy settings, the connections of the signed-in user...