The Importance of supervision can be understood after analysing the function of the supervisor in the following points:
(i) Maintains Contact :- A supervisor maintains day-to-day contact and friendly relation with the workers. He guides and instructs them like a friend, philospher and guide.
(ii) Acts as a link :- A supervisor act as a link between workers and manager, as he conveys management ideas and instruction to the workers and workers grievance and suggestions to the managers.
Thus, it helps to reduce conflict and misunderstandings between two group.
(iii) Maintains group unity :- A supervision sorts out difference among workers in order to maintain group unity and harmony within the organisation
(iv) Ensures performance :- A suoervisor is responsible for the achievements of goals, for which he motivates his employees and ensures performance in the organisation

Difference between directing and supervision

Directing refers to the process of instructing, guiding, leading and motivating people in an organisation to achieve predetermined goals.
Characteristics of directing are:
(i) Directing initiates action - Direction is an executive function of management. while the other function prepare a setting for action, directing initiates action in the organisation.
Therefore, a manager has to perform this function according to planning, organising, staffing and controlling.
(ii) Directing takes place at all levels - Every manager from top to bottom performs the function of directing or in other words, we can say, directing takes place wherever superior sub-ordinate relationship exists.
(iii) Directing is a continuous process - It is an ongoing process. It does not mean issuing an order or instruction but a manager must continuously guide, inspire and supervise his sub-ordinates, so that organisational goals are achieved on time.
This function continues throughout the lifetime of an organisation. If direction in the organisation stops, it cease to work and grow.

Directing is important because of following reasons:
(i) Integrate employees - Directing integrate employees efforts in the organisation in such a way that every individual's effort contributes to the welfare of the organisation. Thus, it ensures that employees work efficiently for the attainment of goals
(ii) Improves efficiency - Directing guides employees to fully realise their potential and capabilities. Through this function, managers utilise the potential of employees and persuade them to work with the best of their abilities and contributes their maximum efforts towards the achievement of organisational objecttives.
(iii) Facilities change - Business environment is changing very frequently, but the people generally have a tendency to resist change. In this context, directing helps manager to persuade his subordinates to carry out changes from time to time to cope with changes in the environment, as the changes are neccessary to adapt and it is the need of modern business.

i) Increase in Social evils.
ii) Encouragement of drinking habits.
iii) Improper way of motivation

Technique of direction-employee specific based on needs & state of mind of an employee.

Various elements between sender & receiver
(i) Message
(ii) Encoding
(iii) Media
(iv) Decoding
(v) Feed back.