[harri127]

A speaker's success is defined on how well they can connect with their audience and deliver their message in a way that the audience will understand. People usually enjoy speakers when they are speaking on a topic on which the people are interested compared to people not being interested when they are forced to listen to a speaker. The same goes for written communication, you must connect with your audience and deliver a clear message. The difference becomes that a writer has the option to edit and change their communication before communicating with their audience. Either way, successful written or verbal communication is determined by what our outcomes are for our communication. If you can communicate your point and influence the audience then you are a successful.