		Employee CreateEmployee( Employee employee , EmployeeGroup employeeGroup );

		/// <summary>
		/// Update an existing employee in the database.
		/// </summary>
		/// <param name="employee">The employee to update.</param>
		/// <param name="employeeGroup">The employeegroup that will contain this employee.</param>
		/// <returns>The updated employee.</returns>
		Employee UpdateEmployee( Employee employee , EmployeeGroup employeeGroup );
