Ompare and Contrast the two Agile approaches of Scrum and Atern

Compare and Contrast the two Agile approaches of Scrum and Atern
Identify the main characteristics in which the two approaches share and where they differ. You then need to refer back to your comparison and argue to a future employer (an IT company with 500 employees) which approach you favour and why

Referencing Requirements:
agile project management with scrum by ken schwaber
na