AstoundLearning

For the sake of simplicity, we require users to have Gmail account (be authenticated via Google). When we send invitation link to a Gmail user and he click on the link, because he already been authenticated, he might be able to use our application without logging into our application.

When we talk about permissions, we talk about:

1. Ability to read (being able to view the set, its entry and/or answer)
2. Ability to write (being able to add / remove question from a set)

Unix file system:
read, write, executable
owner, group, other

Read permission on the set:

1. public: search-able, view-able, subscribe-able by everyone
2. private: not search-able, not view-able, not subscribe-able by the public

Event
Calendar
Music
Video
Documents

public
private
friends
family
colleague