A-B-C Block Diagram: Visual Representation of Hierarchical Structure #3530898 (License: Personal Use)

The image displays three bold, sans-serif capital letters-A, B, and C-each centered within a white rectangular block against a black background. Block A is positioned centrally above two side-by-side blocks, B (left) and C (right), creating a stable triangular or hierarchical composition. The high-contrast monochrome design emphasizes clarity and symbolic meaning over decoration.

This image is commonly used in educational materials, presentations, or UX documentation to represent foundational models-such as input-process-output, parent-child relationships, or modular architecture. It matches user intent seeking visual metaphors for structure, logic, or system design.