So, sometimes you don't notice when you haven't provided what the reader needs to be plunged into your world.
Regardless of your preferred plot structure, the following elements will never hurt your book:
1. Ensure every single scene and chapter open with setting (in a strict sense, or woven into the action of the introductory sentences) even if the setting carries on from the scene / chapter prior. After all, your reader may have put the book down at the last break.
2. Ensure every character is given at least broad-strokes description at the very moment they enter the book. You can develop further details later, but don't risk jarring changes for the reader when they've already created an image of a character because you didn't provide one.
3. Ensure any item in your book that isn't straightforward or known in this time is described with enough detail to give the reader an image. Especially in Sci-Fi / Fantasy where things exist the reader has never seen. It isn't enough to give something a cool name and tell the reader what the characters do with it. They have to know the difference between a communicator worn on the wrist with two buttons that allow the transmission of voice, and the communicator worn on the wrist with a small screen - that can transmit voice only, or show pictures in a later scene.
Those are just a couple, simple things I came across when critiquing someone else's manuscript recently, but I've gone back to my manuscript to ensure I've followed those rules. Sometimes it's hard to notice when you haven't painted a picture that's so vivid in your own head.
Your Turn: Do you have any simple, practical structures to help other writers make sure they're building a solid world for the reader?