Difference Between MVC, MVP, and MVVM Architecture

As the world revolves around the digital space, building an application has become crucial for businesses. From mid-size firms to established organizations and budding startups, all are focusing on software development that tailors to their customer needs. An application is suitable for any business to target a wider audience, understand their needs and expectations, and improve the services or products. According to reports by Market Research Future, the application development market is increasing significantly, and we can see a growth rate of 38.20% by the year 2030.

In this evolving software development landscape, building a scalable and robust application is essential, which can be achieved by adopting architectural patterns. The most popular architecture patterns developers use are MVC, MVP, and MVM. It decides the fundamentals of the application and features, helping the development team to follow a seamless pattern and have a scope of adding features in the future. Understanding these patterns will help you with the development procedure.

Here is an in-depth guide to help you understand the architectural patterns better, including MVC vs MVP vs MVVM, and when to use which pattern according to the development needs.

Introduction to Architectural Patterns

Architecture patterns are blueprints for structuring the codebase of an application to ensure it’s easier to test, manage, and scale. In modern software development, MVC, MVP, and MVVM play a pivotal role and the developer’s first choice, whether it’s regarding mobile application development or web application.

“If you are solely hoping to develop a mobile application and want to get insights on the architecture pattern, you must read the following blog: What are Some of the Best Practices for Mobile App Architecture?”

There are a few core components that are common in the architecture patterns– MVC, MVP, and MVVM, which are briefed here:

• Model: Represents data and business logic of an application. 
• View: Responsible for handling the presentation layer and the user interface. 
• Controller/Presenter/ViewModel: Dedicated to communication management between the Model and View.

Model View Controller (MVC)

The model-view-controller is an architectural design pattern liable for organizing application logic into distinct layers. It is one of the oldest and widely adopted architectural patterns. It’s best suited for web development frameworks such as Ruby on Rails and ASP.NET MVC.

This architectural design has many layers that are incorporated to carry out specific tasks. Each layer is coded to
coordinate with the other layers to ensure smooth application functionality.

The MVC design layers are separated into three components which are:

• Model: This component manages the application data, business logic, and rules. In addition, it handles the communication between the database and network layers.
• View: This component is responsible for the visualization of the application on screen. It is also known as the user interface (UI) layer, as it handles the user interaction.
• Controller: This component acts as an intermediary between the Model and View to establish a strong relationship. It handles user inputs, Model updates, and selecting the appropriate view of the application.

Pros of MVC

• Separation of Concerns: The MVC design pattern separates the data, UI, and control logic, making the codebase more straightforward to manage.
• Reusability: The components can be reused across different parts of the application and save time.
• Easy Maintenance: Maintaining the components is easier as any changes in one component have a very minimal impact on the others.
• Support and Community: Due to the oldest patterns available, it has extensive documentation and community support.

Cons of MVC

• Complexity for Small Projects: For small applications, there is a chance that MVC architecture patterns can create unnecessary complexity.
• Scalability Issue: Controllers become bulky due to the application growth, which creates a “Massive Controller” issue.
• Tight Coupling: The controller is closely tied to View, making the testing challenging.

Model View Presenter (MVP)

The MVP design pattern is an evolution of MVC, which is specially curated for complex interface applications, such as mobile and desktop applications. MVP introduces a Presenter component, which is responsible for handling the presentation logic.

MVP is known to overcome the challenges of MVC and provide an easy way to structure project codes. It is widely accepted in the realm of software development as it offers testability, modularity, and more maintainable codebase.

MVP has also been composed of three components which are:

• Model: This is responsible for representing the stored data and business logic of an application.
• View: It represents the presenter layer and the user interface of an application. It also includes communication with the presenter and takes care of user interaction.
• Presenter: It bridges the gap between the Model and the View by retrieving data from the Model and updating the View component.

Pros of MVP

• Flexibility with UI changes: As the application logic depends on the Presenter, developers can be flexible with the user interface changes and it will have very minimal impact on the entire codebase.
• Enhanced Testability: The presenter enhances testability and modularity as it does not have platform-specific code.
• Better Separation of Concerns: There is a clear distinction between the View and Presenter that reduces dependency.

Cons of MVP

• Increased Complexity: Compared with the traditional architecture pattern– MVC, the complexity increases in MVP as it adds a presenter. The more components are there to manage, the more complex it becomes.
• Potential Overhead: The Presenter can become complex if not appropriately managed, leading to issues similar to the “Massive Controller” in MVC.
• Boilerplate Code: If working on small applications, there will be more requirements for boilerplate code.

Model View ViewModel (MVVM)

MVN is a pattern that leverages data binding to facilitate communication between the View and the ViewModel, reducing the need for manual synchronization. The MVP pattern is basically focused on the View layer, and the responses will be based on the data binding machine.

The code layers that consist in MVVM architecture patterns are as follows:

• Model: This layer is responsible for managing the data and business logic, as well as the abstraction of data sources.
• View: This view layer’s purpose is to handle the presentation and use interaction with the application.
• ViewModel: Acts as an intermediary, exposing data and commands to the View through observable properties and data binding.

Pros of MVVM

• Enhanced Testability: The ViewModel can be tested independently.
• No Duplicacy: There is no scope for data duplication.
• Two-Way Data Binding: MVVM simplifies the synchronization with the View and the ViewModel.
• Reduce Boilerplate Code: As data is binding more efficiently in the MVVM pattern, the need for boilerplate cost is reduced.

Cons of MVVM

• Potential for Complication: When working on complex applications and projects, managing the bindings of the layers becomes complicated.
• Performance Overheads: Excessive data bindings in the architecture patterns lead to performance issues on large and scalable applications.
• Tooling Dependency: The pattern highly relies on framework support for data binding, which limits the flexibility.

Comparative Differentiation: MVC vs MVP vs MVVM

Conclusion

MVC, MVP, and MVVM are the three powerful architecture patterns that help developers build an organized, manageable, and scalable application. All of the software architecture patterns have the same goal, i.e., convenient application development. However, each has its unique approach to separating concerns and handling component interaction.

• MVC is ideal for traditional application developments that have straightforward requirements. 
• MVP is best for complex application development, as it demands high testability and a clear separation between user interface and logic. 
• MVVM is suitable where rich data binding is needed. It allows developers to create responsive and dynamic UIs with minimal boilerplate code.