1 It will not erase any of your data or apps. 2  Erase All Content and Settings-If you want to completely delete your iPhone's data, this is the option to choose. 3  When you tap this, you'll not only erase all of your preferences, you'll also delete all music, movies, apps, and other data from your phone.
The class of an army accident is determined by the cost and amount of injury. Check out this link to find out more about the army's classes of accident: http://www.wainwright.â¦army.mil/safety/CDSO%20Documents/AGAR%20PACKET/accident%20classification.pdf.
US NRC, most folks in Process Safety, US DOE, and many others believe these human factors categories are correct. Aviation and US Military do too. We all use these or very similar categories to describe why a human makes a mistake; during design of a system and during investigation of near misses and losses/accidents.