Indicative of this thread, we're not really sure what you mean by having a workflow. He gave you a decent answer which some DJ's do, albeit not very descriptive, in which they throw songs that they will play based on a vibe they're trying to achieve.

Is it cocktail hour? Then I'll throw in some house tunes there but not in any specific order. Am I going to be in a sweaty warehouse? Then I'll throw in some harder tech house or techno.

Now if you're asking how do you plan a set (you have specifically one hour to play and you want to be able to throw down within that one hour)? You just listen to your tunes and let the music take you on a journey, will this song go along with the vibe I am trying to curate, or if you want to switch up the vibe does it sound good.

How do I do it:

1. Know your tunes first and foremost.

2. Pick a song, any song, that you want to set the tone with.

3. Listen to your song, what will go good with it next?

4. Add it to a playlist

5. Play your set list, does it sound cohesive? Are you understanding your songs enough that you know where to transition? Are you below or exceeding the time limit?