wireframe

A visual model of an electronic representation of a three-dimensional object as defined geometrically by line segments.

A wireframe is transparent in nature, requiring some skill and expertise in interpreting the model.

A basic visual guide used to suggest the layout of fundamental elements in a web interface

Wireframes should be simple sketches that you can quickly revise and not get attached to.

To generate a wireframe representation

She'd barely wireframed it, here, and there was no there there, no interiority.

To prepare a wireframe for a website

There are a few lists you should make before you start wireframing.