LLD Object-Oriented Design: Thinking in Objects, Not Code

May 19, 2026 · 3:00 PM UTC ·4 min read · 0 reactions · 0 comments · 37 views

#softwareengineering #objectoriented #systemdesign

TL;DR · WeSearch summary

The article discusses the importance of object-oriented design in software engineering, emphasizing a shift in thinking from function-centric to object-centric models. It highlights how systems designed around objects can better encapsulate state and behavior, leading to more maintainable and predictable designs. The author outlines key principles and a structured approach to low-level design, focusing on responsibility ownership and the mapping of real-world systems into interacting entities.

Key facts

▪Object-oriented design emphasizes designing systems as a collection of responsibilities rather than functions.
▪Systems designed around objects keep data and behavior together, making them more predictable and easier to modify.
▪A structured approach to design involves understanding the problem, identifying core entities, assigning responsibilities, and defining interactions before implementation.

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Original publisher	DEV.to (Top)
Canonical URL	https://dev.to/saras_growth_space/lld-object-oriented-design-thinking-in-objects-not-code-337p
Publication time	Tue, 19 May 2026 15:00:00 +0000
Retrieval time	2026-05-19T15:04:57.721Z
Last seen	2026-05-19T15:04:57.721Z
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Excerpt method	First ~120 words (~800 chars) of extracted publisher body, fair-use limited.
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Publisher visit	Yes — open original
Substitutes article?	No — link-out required for full text

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Indexing	May the item be indexed (stored, ranked, made findable)?	Allowed
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Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.

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Opening excerpt (first ~120 words) tap to expand

try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3805711) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Saras Growth Space Posted on May 19 LLD Object-Oriented Design: Thinking in Objects, Not Code #lld #systemdesign #softwareengineering #codinginterview System Design (9 Part Series) 1 LLD Foundations: What is System Design (and why it actually matters) 2 LLD Foundations: Understanding Requirements (the step most people skip) ... 5 more parts...

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