Software Design

Programming Paradigms: Choosing the Right Mental Model for Your Problem
Jan 3, 2022 Development

Programming Paradigms: Choosing the Right Mental Model for Your Problem

Programming paradigms shape how we think about and solve problems. Understanding their strengths, trade-offs, and appropriate use cases leads to better software design decisions.

Best PracticesSoftware DesignProgramming
Dependency Inversion Principle: High-Level Modules Should Not Depend on Low-Level Modules
Nov 30, 2021 Development

Dependency Inversion Principle: High-Level Modules Should Not Depend on Low-Level Modules

High-level modules should not depend on low-level modules. Both should depend on abstractions. This principle inverts traditional dependency structures, yet developers routinely create rigid architectures that violate it.

Best PracticesSoftware Design
Interface Segregation Principle: No Client Should Be Forced to Depend on Unused Methods
Nov 1, 2021 Development

Interface Segregation Principle: No Client Should Be Forced to Depend on Unused Methods

Clients should not be forced to depend on interfaces they don't use. This principle prevents fat interfaces that burden implementers with unnecessary methods, yet developers routinely create bloated abstractions that violate it.

Best PracticesSoftware Design
Liskov Substitution Principle: The Contract You Can't Break
Oct 1, 2021 Development

Liskov Substitution Principle: The Contract You Can't Break

Subtypes must be substitutable for their base types without breaking program correctness. This principle ensures inheritance hierarchies remain sound, yet developers routinely violate it with seemingly innocent design decisions.

Best PracticesSoftware Design
Open-Closed Principle: Extending Without Breaking
Sep 12, 2021 Development

Open-Closed Principle: Extending Without Breaking

Software entities should be open for extension but closed for modification. This principle promises flexibility without fragility, yet developers struggle with when to apply abstraction and when it becomes over-engineering.

Best PracticesSoftware Design
Single Responsibility Principle: The Foundation of SOLID Design
Sep 9, 2021 Development

Single Responsibility Principle: The Foundation of SOLID Design

A class should have only one reason to change. This simple statement forms the foundation of SOLID design, yet developers struggle with what constitutes a 'single responsibility' and when to split classes.

Best PracticesSoftware Design
DRY Principle: When Code Duplication Becomes Technical Debt
Aug 8, 2021 Development

DRY Principle: When Code Duplication Becomes Technical Debt

Don't Repeat Yourself sounds simple, but knowing when to apply it requires judgment. Understand when duplication is harmful, when it's acceptable, and how premature abstraction can be worse than duplication.

Best PracticesSoftware DesignCode Quality