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SYSTEM DESIGN

See the whole system.
Understand every part.

Build a clear picture of how software fits together. Explore high-level architecture and low-level component design, then practice explaining the choices behind both.

Practice system designExplore low-level design
LEARN · PRACTICE · REFLECT
  1. 01
    High-level designDefine requirements, shape an architecture, and reason about capacity, data flow, storage, and reliability.
  2. 02
    Low-level designTranslate behavior into classes, interfaces, and interactions. Build components that can evolve.
  3. 03
    Practice your reasoningExplain the design in a focused interview session and reflect on the trade-offs you made.

BUILD A STRONGER FOUNDATION

More understanding.
More you can do.

Choose a starting point and bring the ideas into your next practice session.

01 /

High-level design

Define requirements, shape an architecture, and reason about capacity, data flow, storage, and reliability.

Explore
02 /

Low-level design

Translate behavior into classes, interfaces, and interactions. Build components that can evolve.

Explore
03 /

Practice your reasoning

Explain the design in a focused interview session and reflect on the trade-offs you made.

Explore

PRACTICE WITH PURPOSE

Prepare the answer.
Practice the explanation.

Choose a challenge, make your reasoning visible, and return to the concepts that need more work.

Make your thinking clear

Restate the requirements. Work through an example. Explain your decisions and the trade-offs you considered.

Build on what you learn

Use your practice history, notes, and feedback to plan another focused session.

Find your next session

ONE NEXT STEP

Make space for progress.

Practice system design
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