Show the result at the front

it makes for a quicker time evaluating whether this is something valuable for the audience
assume that most of the audience does not want to read since it isn't their job unless necessary
a disgruntled reader from the bad would make a worse impression than a reader that didn't find the thing valuable
most of the audience have a rough idea of what you're about to discuss; remember the Classic prose model, they are interested in your solution or what you have done (i.e., workflow, solutions); otherwise, they wouldn't consult to your piece in the first place
examples:
- abstracts in academic papers
- showcases in tutorials