gof-patterns

To choose the right GoF design pattern for software refactoring, identify the specific structural, creational, or behavioral problem you face. This skill provides decision guidance mapping common software architecture issues to the appropriate pattern from the 23-pattern catalog.

Creational, structural, and behavioral design patterns differ by scope: creational patterns handle object creation, structural patterns compose object relationships, and behavioral patterns define object interaction. The skill provides concise intents and contexts to distinguish all 23 GoF patterns.

You apply object-oriented design patterns across different programming languages using language-agnostic pseudocode references. This skill provides pseudocode examples and cross-pattern relationships to help adapt and implement GoF patterns on any platform.

You should use design patterns in software architecture decisions when you need to improve system maintainability, flexibility, and reusability. The skill offers real-world example mappings to illustrate exactly when to apply patterns during system evolution.

You can use this skill if you know the basic concepts of the GoF catalog, as it assumes this prerequisite knowledge. It supports your understanding by providing quick-reference decision guidance and real-world mappings rather than teaching fundamental object-oriented programming.

A limitation of applying GoF patterns to existing codebases is the risk of over-engineering if the architectural fit is poor. The skill helps mitigate this by providing real-world example mappings and cross-pattern relationships to ensure correct adaptation during system evolution.