Amazon LLD
LLD for E-Commerce
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- Day 1
Concept:
Assignments:
Creating UML Diagram for an E-commerce Application
Task 1: Identify the E-commerce Application Scope
- Select a specific scope for your e-commerce application (e.g., online marketplace for electronics, fashion retail store, food delivery service).
- Define the key components and functionalities that your e-commerce application will include.
Task 2: Define Class Diagram Elements
- Identify the classes, interfaces, and relationships relevant to your e-commerce application.
- Determine the attributes and methods for each class/interface.
Task 3: Create the Class Diagram
- Use a UML modeling tool or software (e.g., Lucidchart, Visual Paradigm, draw.io) to create the class diagram for your e-commerce application.
- Include all identified classes, interfaces, relationships, attributes, and methods in the diagram.
- Represent the associations, aggregations, compositions, and inheritance relationships between classes/interfaces accurately.
Task 4: Annotate the Class Diagram
- Add explanatory comments or descriptions to the class diagram to clarify the purpose and functionality of each class/interface.
- Include any additional information or constraints that are relevant to the understanding of the diagram.
Task 5: Present and Document the Class Diagram
- Prepare a presentation or documentation explaining the structure and relationships depicted in the class diagram.
- Describe the purpose and functionality of the major classes/interfaces in the diagram.
- Explain how the various components of the e-commerce application interact based on the class diagram.
Note: Remember to follow best practices in creating UML diagrams, such as using clear and concise naming conventions, representing cardinality and multiplicity accurately, and ensuring the diagram is easy to understand and interpret.
- Day 2
- Day 3
Concept:
Assignments:
Design and implement a secure user authentication and authorization module for an e-commerce application.
Key requirements:
1. User Registration: Allow users to create accounts with proper validation and security measures.
2. Login and Logout: Provide a secure login process with session management and secure logout functionality.
3. Password Security: Store passwords securely using cryptographic hashing algorithms.
Your task is to design and implement the user authentication and authorization module, considering scalability, efficiency, and usability. Document the design decisions, security measures, and implementation details for future maintenance and development of the e-commerce application.
- Day 4
Concept:
Assignments:
Extend the assignment done on previous day. Design and develop a robust product catalog and efficient inventory management system for an e-commerce application. The product catalog should provide users with a seamless shopping experience, while the inventory management system should ensure accurate tracking and availability of products.
Key requirements:
1. Product Categorization: Design a hierarchical structure for organizing products into categories and subcategories, enabling easy navigation and browsing for users.
2. Product Attributes: Define and manage essential attributes for each product, such as name, description, price, images, variants, and specifications.
3. Product Search and Filtering: Implement efficient search and filtering mechanisms to enable users to find products based on various criteria, such as category, attributes, price range, and availability.
4. Stock Management: Implement features for managing stock levels.
5. Product Updates: Enable easy management of product information updates, such as price changes, attribute modifications, and image additions.
6. Integration with User Management done as a part of day 1 assignment.
Your task is to design and implement a scalable and efficient product catalog and inventory management system. Consider factors like performance, usability, and scalability to handle a large number of products and inventory transactions. Document the design decisions, data structures, and implementation details to facilitate future enhancements and maintenance of the e-commerce application.
- Day 5
Concept:
Assignments:
Design and develop the shopping cart and order management functionalities for an e-commerce application.
The shopping cart should allow users to add, update, and remove items, calculate the total price, and maintain persistence.
The order management system should handle order creation, processing, order history, and updates.
Implement the features considering performance, scalability, and user experience.
- Day 6
Concept:
Assignments:
You are tasked with developing a payment processing system for an e-commerce application. The system should allow users to make payments securely and efficiently. To achieve this, you need to design and implement the following:
1. Integration with a Dummy Payment Gateway:
- Design the integration architecture and define the necessary APIs and data flows.
- Implement the integration with the dummy payment gateway, ensuring secure
communication and data handling.
2. Payment Processing Flow:
- Design a seamless payment processing flow that guides users through the payment steps.
- Implement the necessary functionalities to handle payment validation, authorization, and capture.
- Handle different payment methods, such as credit/debit cards, digital wallets, or other supported options.
3. Error Handling and Security:
- Implement robust error handling mechanisms to handle failed or declined payments gracefully.
- Implement fraud detection and prevention mechanisms to safeguard against unauthorized transactions.
- Day 7
- Day 8
Concept:
Assignments:
If you are following Java:
- Create a spring boot project.
If you are following python:
- Create a Django project.
- Day 9
- Day 10
Concept:
Assignments:
Push your code on github and share your experience in medium article. It's always good to have portfolio projects.
