Block diagram

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A block diagram is a diagram, in which the principal parts or functions are represented by blocks connected by lines, that show the relationships of the blocks.

Orientation

From left to right

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From top to bottom

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Circular

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Special orientation

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  Cross orientation
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  Waterfall

Building blocks

Number of blocks

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  One block: a process diagram
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  Two blocks
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  Three blocks
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  Four blocks
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  Five blocks
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  More blocks

No blocks

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  Lines and code
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  Words as blocks

P.S. It is questionable if these diagrams can be considered block diagrams

Illustrated blocks

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Specific types

Illustrated block diagrams

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See also

• Control theory block diagrams
• Economic block diagrams
• Function block diagrams
• Functional flow block diagrams
• Specific diagram types