Software design, technical blueprint, detailed diagrams, UML charts, class diagrams, sequence diagrams, collaboration diagrams, component diagrams, deployment diagrams, software architecture, high-level structure, system components, relationships, interactions, technology stack, programming languages, frameworks, databases, operating systems, cloud infrastructure, scalability, flexibility, maintainability, reusability, abstraction, encapsulation, modularization, layering, microservices, service-oriented architecture, event-driven architecture, monolithic architecture, distributed systems, real-time data processing, big data analytics, artificial intelligence, machine learning, cybersecurity, network topology, communication protocols, software development life cycle, agile methodology, waterfall approach.