Rhetorical situation and Rhetorical analysis

I just re-post it.
Rhetorical situation is the circumstances in which you communicate. It involves four elements: writer, reader, text and medium. An understanding of each of these elements and its relationship to all the other elements will help people throughout the writing process. Rhetorical analysis is to help readers better appreciate the text. It should be systemic, comprehensive, and interpretative.
I prefer logos than others to improve my online writing. Logos relies on logical reason to convince audience. I will use facts and statistics to describe a subject and construct logical arguments. I believe this way may achieve ideal purposes of my online writing.