What are design patterns: why use them, classification, pros and cons
Posted: Thu Jan 30, 2025 6:44 am
Ercole Palmeri 2024-03-26
Design pattern
In software engineering, design patterns are optimal solutions to problems that commonly occur in software design.
They are like pre-built, tried-and-tested designs that you can customize to solve a recurring design problem in your code.
Table of Contents
What is a design pattern?
What makes up a design pattern?
Why use them?
Classification of design patterns
Example of a design pattern in Laravel: Facade
Problem
Solution
Real example in PHP
Estimated reading time: 6 minutes
What is a design pattern?
A design pattern is not code that we can copy and insert into our program, as we can qatar rcs data with standard functions or libraries. A design pattern is a general concept that is capable of solving a specific problem. Basically a model whose details we can follow and implement a solution that fits the reality of our program.
I modelli vengono spesso confusi con gli algoritimi, perché entambi i concetti descrivono soluzioni tipiche ad alcuni problemi noti. While an algorithm always defines a clear set of actions that can reach a certain goal, a model is a description of the highest level of a solution. Il codice dello stesso modello applicato a due programmi diversi podrège essere diverso.
Wanting to make an analogy, we can think of a cooking recipe: both have clear steps to achieve a goal. However, a model is more like a project, from which you can see what the result and its characteristics are, but the exact order of implementation depends on us who write the code.
Design pattern
In software engineering, design patterns are optimal solutions to problems that commonly occur in software design.
They are like pre-built, tried-and-tested designs that you can customize to solve a recurring design problem in your code.
Table of Contents
What is a design pattern?
What makes up a design pattern?
Why use them?
Classification of design patterns
Example of a design pattern in Laravel: Facade
Problem
Solution
Real example in PHP
Estimated reading time: 6 minutes
What is a design pattern?
A design pattern is not code that we can copy and insert into our program, as we can qatar rcs data with standard functions or libraries. A design pattern is a general concept that is capable of solving a specific problem. Basically a model whose details we can follow and implement a solution that fits the reality of our program.
I modelli vengono spesso confusi con gli algoritimi, perché entambi i concetti descrivono soluzioni tipiche ad alcuni problemi noti. While an algorithm always defines a clear set of actions that can reach a certain goal, a model is a description of the highest level of a solution. Il codice dello stesso modello applicato a due programmi diversi podrège essere diverso.
Wanting to make an analogy, we can think of a cooking recipe: both have clear steps to achieve a goal. However, a model is more like a project, from which you can see what the result and its characteristics are, but the exact order of implementation depends on us who write the code.