More than an end image
A case should show what the challenge was, why the chosen approach was logical and what difference it made in practice. Was it about fragile material? Large volumes? Privacy? Metadata? A good case makes clear which substantive considerations led to a better result.
What strong cases pay attention to
Every case should show what has been solved in substantive terms, not just that something has been done. That is why the starting point, challenge, chosen route, quality choices, delivery and effect on use matter more than generic satisfaction language. Decision-makers are looking for evidence of insight, not only evidence of activity.