Design Patterns are categorized mainly into three categories: Creational Design Pattern, Structural Design Pattern, and Behavioral Design Pattern. These are differed from each other on the basis of their level of detail, complexity, and scale of applicability to the entire system being design.

• GoF Design Pattern Types.
• Creational Design Patterns.
• Structural Design Patterns.
• Behavioral Design Patterns.
• Conclusion.

Design patterns are essential in modern backend development as they provide a structured approach to solving common problems. The use of design patterns offers numerous advantages, including code reusability, scalability, maintainability, reduced errors, and improved performance.

What are basic design patterns : Design patterns are the ready descriptions giving solutions to repetitive and typical project problems. They are the results of experience, hard work and a great number of trials and errors. They also represent considered and best practices of object-oriented programming (SOLID, DRY, KISS and YAGNI).

What is type of design pattern

Creational Patterns, Structural Patterns, and Behavioral Patterns. Creational patterns deal with object creation in a well-defined way. Structural patterns provide mechanisms to organize class and objects for larger structures. Behavioral patterns deal with communication patterns between objects.

What is the most common design pattern : The most commonly used design pattern varies by application and developer preference. However, the “Singleton” pattern — which ensures that a class has only one instance and provides a global point of access to it — is frequently considered one of the most widely utilized design patterns in software development.

Major Pattern Companies:

“The Big 4” – Including McCall's, Vogue, Butterick, and Know Me Patterns collectively under brand Something Delightful. Simplicity Patterns.

List of the Original 23 Patterns

Purpose	Design Pattern	Aspect(s) that can vary
Structural	Flyweight	storage costs of objects
Proxy	how an object is accessed; its location
Behavioral	Chain of Responsibility	object that can fulfill a request
Command	when and how a request is fulfilled

How many types of design patterns are there

There are 3 types of design patterns: Creational. Structural. Behavioral.Singleton Pattern:

• Ensures that only one instance of a class is created and provides a global point of access to it.
• Useful when you want to have a single, shared instance of a class throughout the application.

The Big Three is one of the names given to the three largest strategy consulting firms by revenue: McKinsey, Boston Consulting Group (BCG), and Bain & Company. They are also referred to as MBB. The Big Four consists of the four largest accounting firms by revenue: PwC, Deloitte, EY, and KPMG.

Pattern classification is the field devoted to the study of methods designed to categorize data into distinct classes.

How many design patterns are there : There are 23 classic Design Patterns, although at least 26 Design Patterns have been discovered to date. Design Patterns can be divided into three types, organized by their intent: Creational Design Patterns, Structural Design Patterns, and Behavioral Design Patterns.

Which design pattern is mostly used : One of the most widely used patterns is the Singleton pattern. Imagine you have a class where you only want one instance to exist throughout your program's execution. That's where Singleton comes in handy. It ensures that only one instance of a class is created and provides a global point of access to that instance.

Is Big 4 better than Big 3

While both of these groups are great places to work, MBB edges out the Big Four in most of the metrics we have used: prestige, pay, training & learning, exit opportunities, and so on. Thus taking the information into account, you should apply for the group that suits you most.

MBB are consulting firms. The Big 4 are accounting firms that also provide consulting services.There are two main types of math patterns: number patterns, or sequences of numbers arranged according to a rule or rules, and shape patterns, which are labeled by using letters and the way that they repeat.

How do you identify patterns : How to Recognize Patterns

1. Actively Look for Patterns.
2. Organize the Pieces.
3. Question the Data.
4. Visualize the Data.
5. Imagine New Possibilities.