Starting with Requirements

Every project starts with understanding the domain. What business problem are we solving? What scale are we planning for?

Choosing the Right Stack

Technology choices should serve the project needs:

• Frontend: Angular for enterprise dashboards, Next.js for content-heavy sites
• Backend: NestJS for structured APIs, Express for lightweight services
• Database: MongoDB for flexible schemas, PostgreSQL for relational data

API Design

Good APIs are:

• Predictable in their responses
• Well-documented
• Versioned for backwards compatibility
• Secure by default

Data Modeling

interface Customer {
  id: string;
  name: string;
  email: string;
  orders: Order[];
  preferences: CustomerPreferences;
}

Thinking in terms of aggregates helps define clear boundaries.

Scalability Patterns

• Stateless services for horizontal scaling
• Database indexing strategies
• Caching layers
• Asynchronous processing

Monitoring and Observability

You can't improve what you can't measure:

• Request logging
• Performance metrics
• Error tracking
• User analytics

Iteration and Refactoring

Architecture isn't set in stone. Building MVP, measuring, and iterating leads to better solutions than over-engineering upfront.