One of Facebook's four principles for a meaningful application is the application's usefulness,which means that ________.
A) it should use information in a social graph
B) it should address real needs
C) it should share a personal perspective on the world
D) it should compel users to come back again and again

Question

Quizplus · Accepted Answer

The principle of usefulness specifically refers to addressing real needs, rather than sharing perspectives or simply using social graph information. The goal is to create applications that truly benefit users and provide value to their experience on Facebook. While creating compelling experiences may encourage users to return, this is not the main focus of the usefulness principle.

One of Facebook's Four Principles for a Meaningful Application Is