User-System Interaction Sequence Diagram
M
MermaidVisualize interactions between users and your system step by step. This sequence diagram helps identify message flow, dependencies, and timing for feature design, testing, or documentation.
How to create a System Sequence Diagram
To create a system sequence diagram, follow these steps:
01.
Identify actors
Determine users or external systems interacting with your system.
02.
Define system boundaries
Clarify what is inside versus outside the system.
03.
List interactions
Identify messages or events exchanged between actors and the system.
04.
Draw lifelines
Represent each actor and the system as vertical dashed lines.
05.
Add messages
Use arrows to show requests, responses, and data flow.
06.
Sequence events
Place messages top-to-bottom in chronological order.
07.
Validate with stakeholders
Ensure the diagram accurately reflects the process.
08.
Finalize & share
Use it for development, testing, or documentation.
You might also like
View all View all templatesWorkflow Diagram
Map how work actually moves through your team. This template shows how ideas are scored, communicated, researched, prioritized, and either promoted to the roadmap or parked — with explicit decision points and feedback loops. It helps teams stay aligned on next steps, understand why decisions were made, and onboard new members without endless meetings.
M
Mermaid
Customer & Order ER Diagram
Visualize how customers, orders, invoices, products, and delivery addresses relate in your system. This ER diagram helps clarify relationships, responsibilities, and dependencies at a glance, supporting database design and system documentation.
M
Mermaid
Data Distribution Pie Chart
Show how your data breaks down into parts of a whole at a glance. This template turns numbers into visual proportions, making it instantly clear which segments dominate and which are smaller. Great for presenting survey results, budget allocations, market share, or any data where percentages and relative sizes matter more than exact values.
M
Mermaid
Cloud-Based System Architecture Diagram
Map out your system’s architecture to show how servers, databases, and storage interact. This diagram helps teams understand infrastructure, data flow, and dependencies for development, deployment, and scaling.
M