MyMapClass diagram for an e-commerce system with users, orders, and products...
01
Choose the system view
Specify a class, sequence, or activity diagram and describe its scope.
UML Diagram Maker
Describe your system, classes, or workflow and AI builds a professional UML diagram — relationships, methods, and attributes all clearly mapped out.
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Templates made with this tool
Real prompts and the maps that came back. Open one to see the whole board and remix the prompt.
Use Case Diagram - Online Banking System
Create a use case diagram for an online banking system with customer and teller actors
Banking RequirementsUse Case Diagram - E-Commerce System
Create a use case diagram for an e-commerce system showing customer and admin actors with browse, purchase, and manage inventory use cases
Store RequirementsOnline Order Activity Diagram
Create an activity diagram for an online order process
Process ModelingPrompts to start from
Click one to fill the box above. Edit anything before you send.
How to draft a UML diagram
No template to fill in and no drawing. You talk; the canvas keeps up.
02
Provide names and relationships
Include entities and multiplicities for structure, or participants and events for behavior.
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03
Inspect the notation
Ask for corrections to arrows, labels, branches, and assumptions before using the draft in a specification.
UML describes a particular view of a system
A UML diagram uses a defined visual vocabulary to describe structure or behavior. A class diagram answers what objects and relationships exist; a sequence diagram follows interactions; an activity diagram follows work and decisions.
For design discussions with a clear scope
Use a focused diagram to resolve a domain relationship or explain one interaction. Combining every class and every workflow in one picture usually makes both harder to understand.
Make the model precise enough to discuss
- Select one diagram type. Use the notation that matches the question being asked.
- Name elements consistently. Reuse the terminology in the system description.
- State multiplicities. Show whether a relationship permits one, many, or no related objects.
- Distinguish relationship meanings. Inheritance, association, and composition should not use interchangeable arrows.
- Expose assumptions. Mark missing behavior rather than presenting an invented rule as agreed design.
Turn system notes into a diagram draft
MyMap uses your description to arrange the model on the canvas, then revises it through follow-up requests. The example is an e-commerce class diagram with User, Product, Order, Cart, and Payment; review its simplified relationships for your own domain.
Export and share
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Whole map or one frame. PDF and clean PNG on Pro.
Slides
Ask for slides from this map and present frame by frame.
Share a link
A read-only link for anyone; they can copy it to their own canvas.
Keep editing
Every map stays on your canvas; come back and ask for more.
Common questions
Do I need to write UML syntax?
You can describe the system in plain language. Specify the diagram type and check the resulting notation, especially where an arrow changes the meaning.
Can I use the draft as a complete technical specification?
A diagram usually covers only one view. Review it alongside requirements, interfaces, and constraints before treating it as an agreed specification.
What should I include for a sequence diagram?
List the participants, initiating event, message order, responses, and alternate outcomes such as failure or retry.
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Free Use Case Diagram Maker
Create use case diagrams in seconds. Describe your system and AI generates a UML use case diagram — map actors, use cases, and system boundaries with proper relationships, ready to refine and share.
UML Diagram Maker
Free to start. No credit card required.
✦ Free to start · No credit card required · PDF, docs & images supported