A block diagram is a diagram of a system in which the principal parts or functions are represented by blocks connected by lines that show the relationships of the blocks. They are heavily used in engineering in hardware design, electronic design, software design, and process flow diagrams.

Block diagrams rely on the principle of the black box where the contents are hidden from view either to avoid being distracted by the details or because the details are not known. We know what goes in, we know what goes out, but we can’t see how the box does its work.

Useful features

Rectangle recognition – in grafio you can sketch a rectangle and it will be recognized.

Shape handles – using the resising handles you can change the width/height of all rectangles to create the perfect block diagram.

Block Diagram Examples

The samples you see below were created in Grafio. You can download any sample and open it in Grafio.