---
title: "Discussion on \"Understanding Event Sourcing, CQRS, and Back-of-the-Envelope Calculations in System Design\" | Hashnode"
description: "Discussion on \"Understanding Event Sourcing, CQRS, and Back-of-the-Envelope Calculations in System Design\". Dive into the core of system design with Event Sourcing, CQRS, and Back-of-the-Envelope Calculations. Learn how these principles work together to build scal"
url: "https://hashnode.com/posts/understanding-event-sourcing-cqrs-and-back-of-the-envelope-calculations-in-system-design/68f5201500c93c9d384902c8"
---

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# [Understanding Event Sourcing, CQRS, and Back-of-the-Envelope Calculations in System Design](https://system-design-concept.hashnode.dev/understanding-event-sourcing-cqrs-and-back-of-the-envelope-calculations-in-system-design?utm_source=hashnode&utm_medium=feed)

Dive into the core of system design with Event Sourcing, CQRS, and Back-of-the-Envelope Calculations. Learn how these principles work together to build scal

Oct 19, 2025 · 4 min read · system-design-concept.hashnode.dev  
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## Written by

[Abhinav Tiwari](https://hashnode.com/@abhinavtiwari)

@abhinavtiwari

  
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Data Science & ML Enthusiast | Power BI & Data Visualization Expert | Turning Data into Business Solutions

Driven Data Science and Machine Learning enthusiast with hands-on experience in data analysis, predictive modeling, and Power BI visualization. Completed a Data Science internship at Codesoft, building strong technical foundations. With 2.5 years as a Shopify Executive and a background in system administration and malware analysis, I bring a broad IT skill set. Passionate about transforming complex data into actionable insights and contributing to innovative, fast-paced teams.

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