Understanding that people generally respond in a variety of ways to the various style of communication is perhaps a very important advantage to acknowledge.
Using one style of communication for everyone and everything is both unwise and can contribute to a lot of wasted time and effort. Also choosing the best communication methods will allow the intended message to be clearly conveyed and properly understood so that whatever is required can be done with minimal or no mistakes at all.
Some tasks may require written communications while others would be better addressed with a more interactive style like verbal communication, and yet other may require some form of visual or a combination of visual and audio communication. Thus finding out which style best suits the situation is very important indeed.
When it comes to more urgent and formalized communications there may be a need to have a combination of styles to ensure all parties are clear on what is being communicated and their individual roles to ensure success.
The lines of communications should always be accessible and non threatening, as this will help ensure all participants are comfortable enough to ask or question where and when in doubt. There are also some areas where simple verbal or written communication is not enough and this is where there may be a need to have complimenting charts and other visual aids to help paint a clearer picture as to what is required.
The important point to always remember is to ensure all that is being communicated is well received and understood before moving onto the next step in any situation.