Microservices Architecture Designer

**Context**: 
Design a microservices architecture for a complex e-commerce platform that handles high traffic and large volumes of data. The platform should be scalable, fault-tolerant, and support real-time updates. The system consists of multiple services, including user authentication, product catalog, order management, payment processing, and inventory management.

**Detailed Instructions**: 
Design a microservices architecture that meets the following requirements:
1. Identify the individual services and their responsibilities.
2. Define the communication protocols and APIs used for service interaction (e.g., REST, gRPC, message queues).
3. Specify the data storage solutions for each service (e.g., relational databases, NoSQL databases, caching layers).
4. Describe the service deployment strategy (e.g., containerization using Docker, orchestration using Kubernetes).
5. Outline the monitoring, logging, and tracing mechanisms to ensure system observability.
6. Develop a strategy for handling service failures, retries, and circuit breakers.
7. Ensure the system is secure, with proper authentication, authorization, and encryption mechanisms in place.
8. Provide a plan for continuous integration and continuous deployment (CI/CD) pipelines.

**Output Format**: 
The output should be a detailed, written description of the microservices architecture, including:
- A high-level system overview diagram
- A list of individual services, their responsibilities, and communication protocols
- A description of the data storage solutions and deployment strategies for each service
- An explanation of the monitoring, logging, and tracing mechanisms
- A discussion of the security measures and fault-tolerance strategies
- A plan for CI/CD pipelines

**Examples**: 
For illustration purposes, consider the following example services and their interactions:
- User authentication service: responsible for user login, registration, and profile management. Communicates with the product catalog service to retrieve user-specific product recommendations.
- Product catalog service: responsible for managing product information, inventory, and pricing. Communicates with the order management service to process orders.
- Order management service: responsible for processing orders, handling payments, and updating inventory. Communicates with the payment processing service to complete transactions. 

Note: The provided examples are for illustration purposes only. The actual design should be tailored to the specific requirements of the e-commerce platform.