🛠️ Welcome to the System Design in JAVA Repo

This Repo is created by Yatharth Kumar Saxena 🚀

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📚 This REPO covers Low Level Design in JAVA

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💡 Skill Set Earned From this Repo

1. JAVA
2. OOPS IN JAVA
3. LOW LEVEL DESIGN
4. INTELLIJ IDEA IDE
5. ChatGPT to Advance the Existing README.md files

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📂 Visit Low Level Design Folder

All content is present in that folder.

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💬 What is System Design?

System design is about planning the architecture and components of a system before implementing it. It's essentially about understanding the problem and figuring out how to build the solution with the best combination of technologies, components, and interaction.

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🧩 System Design Consists of Two Parts

1. High-Level Design

High-Level Design (HLD) focuses on defining the structure of a system in a very abstract way, often used by senior developers and software architects. It provides a broad view of the system, covering the main components and how they interact.

What is High-Level Design?

In simple terms, it’s a blueprint of the system architecture. Senior software developers and software architects use HLD to conceptualize the overall system.

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🔧 Steps in High-Level Design

1. Requirement Gathering

• Functional Requirements: These are the features or functionalities that your customer needs. For example, a login system or a payment gateway.
• Non-Functional Requirements: These define the quality attributes of the system, such as scalability, performance, security, and reliability. It’s about ensuring the system is fast, secure, and can handle growth.

2. Prioritization

This step involves breaking the project into phases and prioritizing tasks based on their importance or urgency. Critical features should be developed first to ensure they are implemented properly.

3. Architecture Design

At this stage, we define:

• The components of the system.
• The technologies to be used.
• The communication protocols and data flow.
• The infrastructure required for the system to work.

This is where we talk about both functional and non-functional aspects to ensure the system works as intended, both in terms of features and performance.

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2. Low-Level Design

Low-Level Design (LLD) focuses on defining the implementation details of each component. This is where the actual coding, interaction, and class-level design take place, making it ideal for junior developers or freshers.

What is Low-Level Design?

Low-Level Design is about detailing the components and their interactions. It’s more specific than high-level design and involves figuring out exactly how things will be done in terms of code, data structures, and class design.

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🔧 Steps in Low-Level Design

• Detailed design of each component.
• Using OOPS principles to structure the design effectively.
• Applying the SOLID principles to ensure the design is scalable, maintainable, and flexible.
• Incorporating relevant design patterns to address common design problems.

By the end of this process, the system should be ready for actual implementation, where the design will guide the development of each component.

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🚀 Happy Designing and Coding! 🚀