GitHub
Domain: Software Engineering
🎯 Motivation
A platform for hosting Git repositories online. Adds collaboration features: pull requests, issues, code review.
📋 Concrete Example
GitHub: push your repo. Others can: clone it, suggest changes (PRs), report bugs (issues), review code. Collaboration platform built on Git. Used by most open-source projects.
🔗 Analogy
GitHub is like a collaborative workspace - your project is there, and anyone you invite can view, suggest changes, discuss, and contribute. It is the office for code collaboration.