What is System Design ?

What is system design ? → We make system for 100-1000 in prototype part → System design we need when we need to scale Why is popular ? Because every “tech” system is “designed”. Companies make the product that is meant for use is “designed”....

Ayush Basak
What is System Design ?
  1. What is system design ?

→ We make system for 100-1000 in prototype part

→ System design we need when we need to scale


  • Because every “tech” system is “designed”.

  • Companies make the product that is meant for use is “designed”.


  1. Why System Design Matters for Developers

  • System design is real-world development.
    Databases, APIs, cache, CDN, storage—this is what we work on in companies every day.

  • At some point, writing code becomes secondary.
    Deciding how the system works becomes the main job.


  1. Why It’s Important for Everyone

  • If you want to build systems that actually scale, system design is mandatory.
    It’s not just for seniors or interviews.

  1. System Design in the AI Era

  • AI can generate code fast.
    But AI cannot design scalable, fault-tolerant systems.
  • Real systems have:

    1. Traffic spikes

    2. Failures

    3. Edge cases

That complexity needs human thinking.


  1. What We Do in System Design

  • Break big problems into small ones → solve-able

  • Give each component a clear responsibility

  • Design for failure and availability

  • Key challenges while scaling

  • setting up the boundaries.