Who is your audience? Answering this question determines much of what you write, why you write, and how you write it. For example if you audience is already an expert in the subject you don’t need to include background information or define special technical terms like you would with a general audience.
Think about your audience. Are they experts in the subject or are they beginners. Are you writing for an executive, co-worker, or client? Is your audience adult or teens or children? What language do they speak? Write down as many characteristics as you can think of to describe your audience.