Deffination of business communication and its main points?

Business communication' may be generally defined as the styles and forms of communication that are typical of and appropriate for business-environments, including both oral and written communication, among others. The main 'points' of business communication are many in number, but the most important include the following: communicate with appropriate formality; always communicate in a respectful manner; communicate effectively, whether that be 'persuasive' for a sales-situation or 'diplomatic' in a problem-situation; finally, strive to be brief and precise.