Organizational culture includes the beliefs, values, ideals, informal practices and habits of social interaction that gradually evolve and function normatively within organizations. Often it describes informal habits as much as formal human resources practices and procedures, and while it may be encapsulated in a mission statement, it more often refers to less formally articulated attitudes.
One of the most important considerations in hiring is to think of how employees will fit within the organizational culture. For example, an employee who prefers very precise, well-defined hierarchical environments may be uncomfortable or ineffective in a more casual informal culture and vice versa. Employees who do not fit within the general culture of an organization will be affected negatively and may be ineffective, isolated, and likely to leave.