Student orientation or new student orientation (often encapsulated into an Orientation week, O-Week, Frosh Week, Welcome Week or Freshers' Week) is a period before the start of an academic year at a university or tertiary institutions. A variety of events are held to orient and welcome new students during this period. The name of the event differs across institutions. Post-secondary institutions offer a variety of programs to help orient first year students. These programs can range from voluntary community building activities (frosh week) to mandatory credit-based courses designed to support students academically, socially, and emotionally. Some of these programs occur prior to the start of classes while other programs are offered throughout the school year. A number of research studies have been done to determine the factors to be considered when designing orientation/transition programs.