Hanwen Zhang – Medium

Hanwen Zhang

System Design Points to Consider and Architectural Design Goals At Work

Software designs at the high level are referred to as “Architectures.” The simpler you can keep the system, the better.

4 min readMar 5, 2024

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System Design Points to Consider and Architectural Design Goals At Work

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Hanwen Zhang

Process v.s. Thread & Background Processing with Worker & Context Switching in O.S.

Process v.s. Thread

5 min readDec 18, 2023

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Process v.s. Thread & Background Processing with Worker & Context Switching in O.S.

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Hanwen Zhang

What Makes a Good Engineer

The foundation of enginerity is to seek the truth.

3 min readNov 21, 2023

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What Makes a Good Engineer

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Hanwen Zhang

Different Types of Software Testing (Unit/Integration/E2E) and TDD/BDD Techniques

Software Testing helps ensure quality, prevent bugs, reduce development costs, and improve performance. Both inspection and testing are…

7 min readOct 9, 2023

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Different Types of Software Testing (Unit/Integration/E2E) and TDD/BDD Techniques

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Hanwen Zhang

How JavaScript/Node Works Behind the Scene

A “high-level single-threaded, garbage-collected, interpreted (or just-in-time compiled), prototype-based, multi-paradigm, dynamic language…

7 min readSep 18, 2023

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How JavaScript/Node Works Behind the Scene

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Hanwen Zhang

A Quick Overview of Code Smells and Refactoring Techniques by Martin Fowler

Refactoring is a systematic process of improving code by transforming the messy dirty code into clean code and simple design that is easy…

7 min readAug 13, 2023

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A Quick Overview of Code Smells and Refactoring Techniques by Martin Fowler

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Hanwen Zhang

Structural and Behavioral Design Patterns with Java Coding Examples

Key Takeaways of Structural and Behavior Design Patterns for Java Design Patterns, 2nd Edition by Vaskaran Sarcar

7 min readAug 12, 2023

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Structural and Behavioral Design Patterns with Java Coding Examples

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Hanwen Zhang

Overview of Server-Side Rendering v.s. Client-Side Rendering and Next.js

Use CSR if a site is under development, like a dynamic SPA handled by React

3 min readAug 6, 2023

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Overview of Server-Side Rendering v.s. Client-Side Rendering and Next.js

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Hanwen Zhang

An Overview of Software Architecture — MVC, Micro-services, Client-Server, P2P, ECB…

The software architecture of a system represents the design decisions related to overall system structure and behavior. The design goals…

6 min readAug 5, 2023

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An Overview of Software Architecture — MVC, Micro-services, Client-Server, P2P, ECB…

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Hanwen Zhang

Software Engineering and Software Development Life Cycle (SDLC) in an Agile Environment

Software Engineering is a systematic approach to the development, operation, and retirement of software. Software process has a positive…

6 min readJul 31, 2023

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Software Engineering and Software Development Life Cycle (SDLC) in an Agile Environment

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Hanwen Zhang

Hanwen Zhang

Full-Stack Software Engineer at a Healthcare Tech Company | Document My Coding Journey | Improve My Knowledge | Share Coding Concepts in a Simple Way

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