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Design a Blockchain-Based System
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Fun. / Non-Fun. Requirements
Functional Requirements
Decentralization
:
The system should operate on a decentralized network, ensuring no single point of control.
Data Integrity
:
Ensure that once data is recorded in the blockchain, it cannot be altered retroactively.
Consensus Mechanism
:
Implement a consensus algorithm (e.g., Proof of Work, Proof of Stake) to validate transactions and add new blocks.
Transaction Processing
:
Allow users to initiate, validate, and confirm transactions.
Smart Contracts
:
Support the creation and execution of smart contracts for automated and self-executing agreements.
Node Communication
:
Enable nodes to communicate and synchronize with each other to maintain a consistent state across the network.
Security
:
Implement cryptographic techniques to secure transactions and user data.
Scalability
:
Design the system to handle an increasing number of transactions and nodes efficiently.
User Authentication
:
Provide mechanisms for user identity verification and access control.
Data Storage
:
Efficiently store blockchain data, including transaction history and smart contract states.
Non-Functional Requirements
Performance
:
Ensure low latency in transaction processing and block validation.
Reliability
:
The system should be resilient to node failures and network partitions.
Scalability
:
Support a growing number of users and transactions without significant performance degradation.
Security
:
Protect against common blockchain attacks such as 51% attacks, double-spending, and Sybil attacks.
Interoperability
:
Allow integration with other blockchain networks and legacy systems.
Availability
:
Ensure high availability and uptime, even in the presence of network disruptions.
Data Consistency
:
Maintain data consistency across all nodes in the network.
Extensibility
:
Design the system to accommodate future enhancements and new features.
Energy Efficiency
:
Optimize the system to minimize energy consumption, especially if using energy-intensive consensus mechanisms.
Privacy
:
Implement privacy-preserving techniques to protect user data and transaction details.
Traffic Estimation and Data Calculation
API Design
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