Simple Process Flow

Basic process with decision

User Login Flow

Authentication workflow with error handling

Document Approval

Multi-step approval process

Data Processing Loop

Iterative data processing with loop

Simple Container

Basic container with shapes

Multi-Region Deployment

Multiple containers for regions

Microservices Architecture

Containers for service boundaries

Simple Use Case

User authentication use case

Class Diagram

Simple class hierarchy with interface

Sequence Diagram

User authentication flow

State Machine

Order processing states

Activity Diagram

Online shopping process flow

Simple Network

Basic client-server architecture

Three-Tier Architecture

Web application architecture

Cloud Infrastructure

Cloud-based system with firewall

System Context

C4 Level 1: Banking system context

Container Diagram

C4 Level 2: System containers

Component Diagram

C4 Level 3: API components

Microservices Architecture

C4 Container view with multiple services

Feedback Control Loop

Classic feedback control system

Signal Processing Chain

DSP filter chain

Family Tree

Three generation family tree

Sales Dashboard

Multiple chart types

Venn Diagram

Set relationships

Bell State

Quantum entanglement circuit

Quantum Teleportation

Simplified teleportation circuit

Simple LED Circuit

Basic LED with current-limiting resistor

RC Low-Pass Filter

First-order passive filter

Voltage Divider

Basic voltage divider circuit

NPN Transistor Switch

Transistor as a switch

Half Adder

Single-bit adder without carry-in

Full Adder

Single-bit adder with carry

SR Latch

Set-Reset latch using NOR gates

4-bit Counter

Synchronous 4-bit counter

2-to-4 Decoder

Address decoder circuit

4-to-1 Multiplexer

Data selector circuit