Common Software Architectural Patterns

Here are 5 Common Software Architectural Patterns

1. Model-View-Controller (MVC)
2. Model-View-ViewModel (MVVM)
3. Client-Server
4. Layered
5. Microservices

Model-View-Controller (MVC)

Model-View-Controller (MVC) is a software architectural pattern that separates an application into three main components: the model, the view, and the controller.

The Model represents the data and the business logic of the application. It is responsible for maintaining the state of the application and providing an interface for the view and the controller to access the data.

The View is responsible for displaying the data to the user and capturing user input. It is typically implemented as a user interface (UI) and can be implemented using various technologies such as HTML, CSS, and JavaScript.

The Controller is responsible for handling the user input and updating the model and the view accordingly. It acts as an intermediary between the model and the view and is responsible for handling the logic of the application.

The main advantage of using the MVC pattern is that it allows for the separation of concerns, making it easier to maintain and extend the application. It also allows for easier testing, as the different components can be tested independently.

You can also look at my recent articles

Model-View-ViewModel (MVVM)

Model-View-ViewModel (MVVM) is a software architectural pattern that is similar to Model-View-Controller (MVC). The main difference between the two is that MVVM has an additional component called the ViewModel.

The Model represents the data and the business logic of the application, just like in MVC.

The View is responsible for displaying the data to the user and capturing user input, just like in MVC.

The ViewModel acts as an intermediary between the View and the Model. It is responsible for preparing the data from the Model for the View and handling the logic of the application. It also captures the user input and updates the Model accordingly.

The main advantage of using the MVVM pattern is that it provides a clear separation of concerns between the Model, the View, and the ViewModel, making it easier to maintain and extend the application. Additionally, the ViewModel can be easily tested without the need for a View or a Controller, which makes the testing process simpler.

MVVM is mainly used in the development of Windows Presentation Framework (WPF) and Silverlight applications, but it is also widely used in the development of mobile applications and web development.

You can also look at my recent articles

Client-Server

The client-server architecture is a software architectural pattern that separates an application into two main components: the client and the server.

The client is responsible for handling the user interface (UI) and user input and is typically implemented as a desktop or mobile application. It communicates with the server to retrieve and update data.

The server is responsible for managing the data storage, performing business logic andthe other computational tasks. It also provides an interface for the client to access the data and perform operations on it. The server can be a single machine or a cluster of machines, depending on the scale of the application.

The main advantage of using the client-server architecture is that it allows for separation of concerns, making it easier to maintain and extend the application. It also allows for easier scalability, as the server can handle the increased load while the client remains the same. This pattern is widely used in web applications, distributed systems, and enterprise applications.

It is worth mentioning that this pattern also exists in different forms like three-tier architecture where it's compoofd by Client, App Server, and Database Server where the client interacts with the App Server, which communicates with the Database Server, this way the App server can handle the business logic and the Database Server handle the data storage.

Layered

The layered architecture pattern is a software architectural pattern that organizes an application into different layers, each with a specific responsibility.

The layers of a layered architecture are typically organized in a hierarchical fashion, with each layer building upon the one below it. The layers can include, but are not limited to:

Presentation layer: responsible for handling the user interface (UI) and user input.

Business logic layer: responsible for performing the business logic of the application.

Data access layer: responsible for accessing and manipulating the data storage.

Data storage layer: responsible for storing and managing the data.

Each layer communicates with the layers above and below it through well-defined interfaces. This allows for separation of concerns, making it easier to maintain and extend the application. Additionally, the use of interfaces allows for the implementation of each layer to be changed without affecting the other layers.

The layered architecture pattern is commonly used in enterprise applications and large-scale systems where there are many different components that need to be organized and managed. This pattern allows for a clear organization of the different parts of the application, making it easier to understand, maintain, and extend the application over time.

You can also look at my recent articles

Microservices

Microservices architecture is a software architectural pattern that organizes an application as a collection of small, independent services. Each service is responsible for a specific business capability, and can be developed, deployed, and scaled independently from the other services.

Microservices are typically designed to communicate with each other through lightweight protocols, such as HTTP/REST, and use message-based communication for asynchronous communication.

The main advantage of using the microservices architecture pattern is that it allows for flexibility and scalability. Each service can be developed and deployed independently, which allows for faster development and deployment cycles. It also allows for easier scalability, as services can be scaled independently based on their specific needs.

Additionally, microservices architecture allows for a high degree of resilience in case of failures, as one service can fail without affecting the entire system.

Microservices architecture is commonly used in large-scale systems, such as e-commerce platforms, where the system needs to be highly available, highly scalable, and easily adaptable to changing business requirements.

It's worth mentioning that Microservices architecture comes with challenges in terms of testing, deployment, monitoring, service discovery, and service orchestration, these challenges can be mitigated with the use of tools like Kubernetes, Docker, and others.

I hope this helps, don’t Forget to Follow and Comment to get all updates and strategies. Read me More