In which function of an organization SMART application is necessary ?

An objective that follows SMART is more likely to succeed because it is clear (specific) so you know exactly what needs to be achieved. You can tell when it has been achieved (measurable) because you have a way to measure completion. A SMART objective is likely to happen because it is an event that is achievable. Before setting a SMART objective relevant factors such as resources and time were taken into account to ensure that it is realistic. Finally the timescale element provides a deadline which helps people focus on the tasks required to achieve the objective. The timescale element stops people postponing task completion.