Expected Deliverables You will receive a detailed breakdown of tasks necessary to realize your vision, encapsulated in a dApp Technical Specification Document outlining the Software Development Life Cycle. System Architecture Architecture Diagram: A visual representation of the system architecture. Components: Descriptions of major components, including smart contracts, front-end interfaces, and backend services. Technology Stack Platform: The blockchain platform chosen (e.g., Ethereum, Polkadot, Binance Smart Chain). Smart Contract Languages: Languages used for smart contract development (e.g., Solidity, Rust). Frameworks and Libraries: Frameworks and libraries for both smart contract and front-end development. Tools and Platforms: Additional tools and platforms (e.g., Truffle, Hardhat, IPFS). Smart Contracts Contract Overview: High-level descriptions of each smart contract. Functions and Methods: Overview descriptions of functions and methods. Events and Data Structures: Information on events emitted by the contracts and data structures used. Front-End Interface User Interface: Descriptions of the user interface, including mockups or wireframes. Integration w/ Smart Contracts: How the front-end interacts with smart contracts (e.g., via web3.js, ethers.js). User Experience (UX): Considerations for a seamless user experience, including account management and transaction handling. Data Storage On-Chain vs. Off-Chain: Details on what data is stored on-chain versus off-chain. Off-Chain Storage: Descriptions of off-chain storage solutions used (e.g., IPFS, centralized databases). Data Flow: Explanation of data movement through the system. Security Security Measures: Overview of security practices, including contract auditing and code reviews. Compliance: Compliance standards relevant to the dApp (e.g., GDPR, KYC/AML). Scalability and Performance Scalability Strategies: Methods for scaling the dApp (e.g., layer 2 solutions, sharding). Performance Optimization: Techniques for optimizing performance, such as gas optimization and efficient data retrieval. DevOps Deployment Process: Steps and tools used for deployment, including deploying smart contracts and setting up the front-end. CI/CD Pipelines: Continuous integration and continuous deployment pipelines. Environment Configuration: Configurations for different environments (development, staging, production). Maintenance Monitoring Tools: Tools used for monitoring the dApp's health (e.g., blockchain explorers, logging tools). Maintenance Plan: Regular maintenance tasks and procedures. Recovery Backup Strategies: How data is backed up. Disaster Recovery Plan: Steps to recover from a system failure.

This is where the core development and creation of the dApp takes place. Development occurs in iterations that produce deliverable demos and a repository codebase, piece by piece, until the Project's completion. Deliverables are handed over through an online repository at your choosing where the code will reside (such as Github, Bitbucket, Gitlabs or Azure Repos). Projects are tracked with productivity management tools such as Azure Devops or Atlassian's Jira. Work is organized as planned in phase 1, where tasks are assigned a complexity, priority and estimated delivery date (always as a worst case scenario), and handled in bouts of 15 days of effort called sprints. Before each sprint, a small sprint planning is done to adjust for unpredictable events or bugs or to restructure tasks as to be yet more efficient; after each sprint, a sprint demo takes place, where the actual code deployed to a Testnet is visible for everyone to see the the hosted app is available for clients to try out and provide feedback. Local development code, if required, can be reviewed by your development team before it is delivered and merged with the repository code. During the merge process, all tests are ran to assure the new code does not conflict with earlier functionalities. Deployment and hosting are also taken care of as part of this phase. What you can expect as a deliverable: Running, testable software Deployed demo of your Project Smart Contract Development Objective: Development and deployment of smart contracts that form the core logic of the dApp. Activities: Writing and test smart contracts using languages like Solidity. Ensuring security and efficiency through rigorous testing and code reviews. Deployment of smart contracts to the chosen blockchain network. Front-End Development Objective: Create a user-friendly interface that interacts seamlessly with the blockchain. Activities: Design intuitive and responsive user interfaces (UI/UX design). Integrate front-end with smart contracts using web3.js or ethers.js. Implement account management, transaction handling, and real-time data updates. Integration and Testing Objective: Ensure all components work together seamlessly and meet quality standards. Activities: Perform unit, integration, and end-to-end testing. Conduct user acceptance testing (UAT) with stakeholders. Optimize performance and security. Deployment and Launch Objective: Deploy the dApp to production and ensure a successful launch. Activities: Set up continuous integration/continuous deployment (CI/CD) pipelines. Deploy smart contracts and front-end applications. Monitor and troubleshoot any issues post-launch.

With time, tools and technologies used in the project can become outdated or obsolete, which will (almost inevitably) incur in bugs in the application. To solve this, software has to be upgraded and tools have to be replaced. Other factors such as user's feedback requesting specific features to be changed, removed or added can also create a need for the software to be maintained or supported. This is the best time to renew your application and to correct initial assumptions, be they business or structural in nature, and to extend the solution with new features and fresh top-of-the-line tools. However, dApps have the particularity of being irrevocable, which means that when deployed, older versions will still be available (yet hidden), so new improvements and upgrades require relaunching new instances of the dApp, as well as replicating the existing data within it. What you can expect as a deliverable: Migration/Upgrade planning Upgrade implementation Re-Deployment / Re-Launch Bugs fixes in relaunched instances of the dApp Upgraded Software New Software Implementation Tasks completed - New Features Plan reviews