<p>
</p>
<p>It is still not clear why you think that a multi-page document (which is not mostly charts, diagrams, or lists) on an engineering subject is not “writing”. An engineer who has to explain an idea to either other engineers or non-engineers has to write down the explanation in a way that is clear and easy to read by the intended audience.</p>
<p>Yes, the type of writing in the above cases may be somewhat different from how one would write about English literature, but how is it not “writing”?</p>
<p>(That said, there are plenty of people in all areas who have poor writing skills.)</p>