Are sketches that help architects identify the areas of the home that will be included in the drawings. These diagrams are used at the preliminary phase of the design process and are used for space planning and organization. These diagrams are composed of circles or ovals drawn on a sheet of paper that help the architect identify the location of the rooms to be included in the floorplan for a home or commercial building.

The description you provided seems to be referring to Bubble Diagrams. Here's a step-by-step explanation:

1. Identification: Bubble diagrams are a type of drawing used by architects during the preliminary phase of the design process. They are not detailed sketches but rather abstract representations of the space.

2. Purpose: The main purpose of these diagrams is to help architects identify and decide on the areas of the home or commercial building that will be included in the final drawings. They are used for space planning and organization.

3. Composition: Bubble diagrams are composed of circles or ovals (the "bubbles") drawn on a sheet of paper. Each bubble represents a different room or space in the building.

4. Usage: The architect uses these diagrams to visualize the location and relationship between different rooms or spaces. By moving and adjusting the bubbles, they can experiment with different layouts and flows for the building.

5. Outcome: Once the architect is satisfied with the bubble diagram, they can then proceed to create more detailed drawings and floor plans based on it.