PRISM — System Design Sandbox

Components

Select a node to edit the default parameters.

Start by dragging a component from the left panel onto this canvas. A good first choice is User — it represents the entry point of any system.

1
Pick a component Drag User, Load Balancer, or Server from the left panel onto here
2
Connect the dots Shift-drag from one node's port to another to draw an arrow between them
3
Run a simulation Hit Simulate in the right panel to get instant feedback on your design

Not sure where to start? Go to Help → Start tour for a guided walkthrough.

EVALUATE MODE

A structured 4-module evaluation that mirrors how top companies assess system design candidates.

Architecture Design

Draw your system on the canvas. Define components, connections, and data flow.

FR & NFR Requirements

Answer functional and non-functional requirement questions about your design.

MCQ Round

Multiple choice questions testing your depth on the chosen system.

Tradeoff Analysis

Justify your design decisions and defend your architectural tradeoffs.

Choose a Problem Sorted by difficulty — Easy → Medium → Hard

No problem selected

Explore concept overviews, real-system examples, key tradeoffs, and interview talking points for each roadmap section.

Roadmap

XP Earned

Total experience points

Level 1 Level 2 → 1,000 XP

Weekly Streak

Roadmap Progress

Overall complete

0 / 0 subtopics

Estimated Time

—

remaining in roadmap