Module 6: Implementation Design & Architecture

🎓 Learning Outcomes

By the end of this module, participants will be able to:

Design full-stack blockchain applications tailored to SDG-specific PoCs
Translate use cases into modular technical architectures (contracts, wallets, credentials)
Structure and document repositories for handoff, review, and scale-up
Apply implementation best practices for open-source, testnet-deployable solutions

🧭 Module Overview

Even great ideas collapse without technical clarity. This module teaches how to translate your PoC idea into a complete and professional blockchain system, with:

Defined actors, logic, and flows
Clear separation of on-chain vs. off-chain components
Credential schemas and token standards
Smart contract triggers and fail conditions
Clean, testable GitHub repositories

The goal is not just to build — it’s to build in a way that mentors, funders, and partners can understand, test, and extend.

🔧 Section 1: Define Actors & Roles

Start with a human-readable model. Identify all the stakeholders in your system and define their roles, permissions, and trust relationships.

Example: Fertilizer Aid PoC

Actor	Role Description
Beneficiary	Farmer receiving aid; holds wallet and credentials
NGO	Issues eligibility credentials; funds the smart contract
Oracle	Provides ADA/USD price feed (optional)
Smart Contract	Releases funds based on VC and time logic

📌 Best Practice: Roles should align with real-life responsibilities (e.g., NGO signs VCs, not the farmer).

🎓 Learning Outcomes

🧭 Module Overview

🔧 Section 1: Define Actors & Roles

Example: Fertilizer Aid PoC

🔁 Section 2: Define Data Flows and Token Logic