The most suitable model for formal communication is given below – Barriers to effective communication. 

1. Barriers due to organizational structure: An organizational structure is complex with numerous levels in between which creates distance between the top management and the workers. With long lines of communication, there is a possibility of a message losing its significance.

2. Psychological Barriers: Everyone perceives information in the light of their own experiences, prejudices and thinking.

3. Inability to communicate: The lack of ability to communicate leads to misunderstanding and confusion. Different people assume different meanings for the same words.

4. Status and Position: Sometimes, effective flow of communication is hampered by status and position of the sender and receiver.

Measures to overcome the Barriers : 

1. Clarity in the thoughts of the sender is a must for effective communication. 

2. The sender should try to make the message meaningful and understandable. 

3. Message should be precise and to the point. 

4. The sender should always take feedback from the receiver.