There are many concepts behind the facebook:

Social Design

         Social Design is the guidelines to understand why to build social network platform. There are 3 elements of social design.

        - Community: means the people who we trust and help to make decision 

        - Conversation: interaction between community

        - Identity: means our sense of self and thing that we seen by our communities

Modeling a social experience: we can model social product by working from inside to outside. We begun with identity and let them share and bulid the community.



Social Plugins

      ​ ​Social Plugins is the way to communication between facebook and other application. Users can engage to facebook by use a few line of HTML. Plugins are provide by facebook so content is personalize to viewer. There are many plugins on facebook;

         - Like Button: allow user to click like your websites on your sites

         - Send Button: allow users to send your content

         - Follow Button: allow users to subscribes to other users

         - Comments: allow users to comment at the content on your sites

         -  Activity Feed: show users' friend activity

         -  Recommendations Box: give user suggestion for page on your sites

         -  Recommendations Bar: allow user to like content

         -  Like Box: enable user to like your facebook page

         - Login Button: show users' friend who have signed in

         - Registration; allow user to easily sign up from you website

         - Facepile : use to display facebook profile picture of use who like your page

      

Facebook Login

         Facebook login is allow users can access their facebook account easily via mobile of websites. There are many security that user to provide the security for facebook's user and there are tools for all major platform such as iOS, Andriod or any website. 

        - Security: OAuth2.0 is userd for facebook login authentication and authorization.This function use JavaScript and mobile SDK. There are login dialogs to record the user's access and create the link between user and their information.

        -  Personalized: users can access all of facebook's API by login to facebook. Users can access page and application.   

        -  Simple: there are several SDK avilable of implementing for many platform so, user can choose the login flow that suitable for users' application.

 

Open Graph

        ​Users can tell the story through the application that user liked of typed.There are 4 elements that use to telling stories;

         - The actor: this person published the story

         - The app: this is application that published the story on users' behalf

         - The action: this is the activity that user do like finished reading or watching this video.

         - The object: this is object that interracted with users such as book name, movie trailor or page.  

Promote Your App

        ​There are various of tool that use to promote your application and there are different options. You can choose one that suitablie for your app.

App Center

       ​There are application information in app center. This app center can help the user that want to make new application.