Useing the model of an ICT system discussed to think through some of the technical infrastructure issues:
How easy is it for users of Facebook to do things using its interface?
What update functions do you think get triggered?
What do you think happens in the business layer?
What update functions do fired at te data management layer?
How do you think data about friends are stored by Facebook?
What sort of tables might exist in this database?
What columns might exist in a particular table?