Difference Between MVC and MVP

An android needs a software architecture pattern while being developed. MVC and MVP are two such widely used patterns that give developers a chance to module the project files and make sure that codes are covered. This makes the developer’s job an easy one.

MVC vs MVP 

The main difference between MVC and MVP is that for MVC, the Controller works as the entry point, but in MVP, the entry point is View. MVC View does not have awareness regarding the View, but MVP has this awareness for View. Editing and changing in MVC is tough, but in MVP, this task is easy.

MVC and MVP

MVC is a software structure that has Controllers as its entry point. Here, in most cases, the View layer is implemented in the form of a single unit or class. All the 3 presented layers of it are closely associated, and thus, making any changes can be a complicated thing.

We can say that the MVP pattern got its inspiration from the MVC pattern. However, MVP is a UI presentation pattern. This does not depict the entire procedure, but it explains the structure of the View. The View makes the UI elements and all its elements stay together loosely.

Comparison Table Between MVC and MVP

Parameters of ComparisonMVCMVP
Meaning MVC stands for Model-View-Controller.MVP stands for Model-View-Presenter.
Entry pointThe entry point of this is Controller.The entry point of this is View.
View and Model relationshipHere View is not conscious about the Controller.Here the View is aware of the Presenter.
Following modularThis application does not follow any modular or abide by the single responsibility principle.This application follows modular as well as single responsibility principles.
Modification Here making modifications is difficult.Here making changes and modifying data is not much complicated.

What is MVC?

The MVC pattern implies Model-View-Controller. The code is divided into these 3 sections. When developers create a file for an application, they need to choose one of the layers. The first layer, Model, is responsible for storing the data of the application. It is not aware of the interface at all. The model has the job to communicate with the database as well as with the network layers.

The View is the User Interface or UI layer of the application. It contains the components that are apparent on the screen. All the visualized data that is saved in the Model is provided by View. Users can interact with this. The last layer, Controller, is developed to create a connection between the Model and the View. It collects the user’s behaviour and, according to that, updates the Model.

A few negative points of MVC makes the job hard at times. Here the View and the Model are tightly associated. So the requirements of the View can have an impact on the Model and degrade the business logic. At the same time, this close association makes the unit testing of the View tough.

What is MVP?

MVP pattern signifies Model-View-Presenter. It is a better version of MVC, and by using MVP, the developer can easily structure the undertaken project codes. MVP’s characteristics make it very popular among developers. Its clean and maintainable code database and testability make it very useful.

It also has three components. The first is the Model layer that is designed for the purpose of storing data. It maintains the domain logic rules and also communicates with the database and network layers. The next layer, View, is this application’s User Interface. This layer delivers all the visualization of the data along with keeping track of the actions by the user with the aim of informing the Presenter.

The last layer is the Presenter, which brings data from the model and uses the UI logic and then determines what should be displayed. Users can input in the View, and MVP organizes the state of the View accordingly.

However, MVP is not free from all issues. The controller of MVP often gets removed. As a result, to compensate for the lack of a controller, the flow has to be dealt with by the Presenter. So ultimately, the Presenter manages to update the Model as well as Presenting it.

Main Differences Between MVC and MVP

  1. MVC stands for Model-View-Controller, whereas MVP stands for Model-View-Presenter.
  2. The entry point for MVC is Controller, but in the case of MVP, the entry point is View.
  3. In the MVC application, the View does not have any knowledge regarding the Controller, and on the contrary, in MVP, the View has good awareness of the Presenter.
  4. In MVC, the code layers are closely linked, but in MVP, the code layers reside loosely related.
  5. As MVC carries closely linked code layers, it is not an easy task to modify its data, but in the case of MVP, it is easy to make changes because here, the code layers are connected loosely.
  6. MVC does not abide by the single responsibility principle, but MVP does follow it.

Conclusion

The two patterns, MVC and MVP, are important because they distinguish between the concerns of the business and UI layers. These can protect data access, and they also offer several features that will make the testing process easy for the developers. The use of these two patterns have the feature of parallel development, so the work can be distributed to different developers, and they can work on it at the same time. Thus the total timing of the development will get cut short.

Both serve their purpose well, and though MVP is developed based on MVC, MVP has more to offer, and this makes it a more popular architecture pattern. MVP can break down the application into modules. Therefore the Views are made to be reusable.

References

  1. https://ieeexplore.ieee.org/abstract/document/5567323/
  2. https://research.tue.nl/files/48628529/Lou_2016.pdf

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