When writing, let’s say, to the teacher, you are communicated to be evaluated. Assessment is the outcome, based on some set of expectations involving skills and/or knowledge.
However, when writing to an authentic audience, what you are trying to earn is not an evaluation (though there may be one coming in the process). What you are writing for is a response, and that response will be directed toward what you have invested in the work, not just the facts you have included or the skills you have demonstrated.
