Machine-coding case studies

Design an Elevator System

Multiple elevators, hall and cabin requests, and a scheduler that decides which car goes where, modelled with a direction State machine and a pluggable dispatch Strategy. An animated lesson where the diagram draws itself as the design grows.

  • Lesson 6 of 6
  • Animated diagrams

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6 lessons, each with diagrams that draw themselves.

What you will learn

  • 1. Clarify requirements (always do this first)
  • 2. Find the nouns → the classes
  • 3. Each elevator is a state machine
  • 4. The scheduler is a Strategy
  • 5. Mention the hard part

More low-level design

Watch Design an Elevator System take shape

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DSA comes with the all labs plan and every ChaiCode batch.