Placement of the Overall Claim or Judgment
Writers can state their final position at the beginning or the end of an essay. The same is true of the overall claim or judgment in a written evaluation.
When you place your overall claim or judgment at the end of your written evaluation, you are able to build up to it and to demonstrate how your evaluative argument (evidence, explanation of criteria, etc.) has led to that judgment.
Writers of academic evaluations normally don't need to keep readers in suspense about their judgments. By stating the overall claim or judgment early in the paper, writers help readers both to see the structure of the essay and to accept the evidence as convincing proof of the judgment. (Writers of evaluations should remember, of course, that there is no rule against stating the overall claim or judgment at both the beginning and the end of the essay.)