To begin with there are two major categories of business communication. The first is internal communication and the second is external communication. With internal communication you have upward, downward and horizontal communication. The memos from the "boss" to the employees would be downward, for example. Memos, reports, data from the lower level management to the upper level would of course be upward communication. Horizontal would be communication within the same level of company business. External Communication would be the information passed from one business to another, or to consumers, vendors, and outside people.
The effectiveness of these communications depends on clarity, brevity, and correct documentation. One must be sure that the information is clearly labeled, clearly stated, and always keep copies of memos, reports, and records. One needs to make sure the information is presented in a format correct for the situation and all the "t"s are crossed and the "i's" dotted so to speak.
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Communication can be defined as,
"The process of passing information and understanding from 1 person to another. It is essentially a bridge of meaning a person can safely cross the river of misunderstanding." (Given by Keith Davis)
Effective business communication is said to be one in which a person (employer) successfully communicates something to another person (employee) who understands the said words completely.
The main channels of business communication are internal and external, and the main types of communication are verbal and non-verbal.
My uncle runs a small business. When I showed him this question, he said, "Talking is good."
A few years ago, a large hotel chain had a call center here in California. My uncle helped a family member, Alice, get an entry level job as a reservation agent. Every day during the training, the instructor made the trainees sign two-page, single-spaced forms that said the the trainees understood and would abide by the company policies. Alice became overwhelmed with all the paper. She worried that she would not remember all of the rules, and she would be fired, so she left before she completed her training.
So maybe my uncle is right. Talking is good.