The 5A Model is a guide for safety while on site. It includes things you need verify about the mission, procedures to execute, and policies regarding all operations. The 5 A's are Advise, Apprise, Avoid, Accede, and Adhere.
The BREES Model is a guide for post flight activities (do's and don'ts) and procedures for conflict resolution. BREES stands for Bullying, Respect, Encrypting, Entertainment, and Snooping.