Object-Oriented Design & Design Patterns Roadmap
Learn object-oriented design from core modeling principles through SOLID, GRASP, GoF patterns, refactoring, and a practical design capstone.
Posts tagged with #design-patterns
Behavioral Patterns: Organize Collaboration
Compare all eleven GoF behavioral patterns by the change they isolate, the coupling they reduce, and the runtime costs they add to a system in real code.
Choosing, Combining, and Removing Patterns
Choose GoF patterns by tracing change pressure, comparing direct code with pattern roles, and removing abstractions when maintenance costs exceed their value.
Creational Patterns: Control Object Creation
Compare five creational patterns, see a compact TypeScript example, and choose the simplest fit for product families, construction, copying, or shared state.
Refactoring Toward Patterns Safely
Refactor toward design patterns safely: follow evidence of change, preserve behavior with tests, and make small transformations before adding an abstraction.
Structural Patterns: Compose Objects and Interfaces
Compare Adapter, Bridge, Composite, Decorator, Facade, Flyweight, and Proxy with Java examples, costs, failure modes, and guidance for choosing a fit.
Testable Object Design and Collaborator Seams
Learn to design object-oriented code around behavior, collaborator boundaries, and stable dependency seams, with practical tests that resist refactoring churn.