What is MVC – Model – View – Controller?

MVC is a widely used software design pattern for developing user interfaces that divides related program logic into three interconnected elements.

Mvc is known as an acronym for Model View Controller. MVC is the software architecture that
chooses the business logic and user interface of the application we write and prevents the parts of
the application that serve different purposes from creating confusion.

While separating code structures that serve different purposes, it makes the code more easily developable and testable.

What are the Advantages of MVC?

• Easy code maintenance, easy to extend and grow
• Model component in MVC can be tested separately from the user
• Provides easier support for new customer types
• Development of various components can be carried out in parallel
• Reduces complexity by dividing an application into three units
• Offers the best support for test driven development
• Stable for web applications powered by major web designers and developer teams
• All classes and objects are independent of each other so you can test them separately
• Allows logical grouping of related actions in a Controller together

What are the Disadvantages of MVC?

• This model is difficult to read, modify, unit test and reuse
• No official verification support
• Complexity and inefficiency can occur as data grows
• Using MVC in modern UIs is difficult
• More than one programmer is needed to do parallel programming
• More than one tech knowledge is required

Model:

It is the section that represents the data used in the application and where the data processing logic
is stored. Data validation is done here.
In general, the operations of saving the data to the database and fetching it from where it is saved
can be done here.

View:

Simply put, the side of the app your users see is the interface.

Controller:

Calls between Model and View. It carries the data that the user runs and receives through the View
to the Model and brings the data from the Model to the user through the View.

Here the main logic works as follows. Model and View structure are separated and the bridge that
provides communication between these two structures is called Controller.

Why Should We Use MVC Architecture?

Thanks to MVC, we separate the Model and View structure. When we have to change the
appearance of our application, we will only have to deal with the appearance.

If we had to deal with complex, nested code, we would only have to change the execution of the
application when we wanted to change the view.

Where is Mvc Used?

MVC, which is based on facilitating the system, is generally used in web applications. It has a reusable
feature and especially in web projects, codes written on a single server side are only used by the
controller.
Especially in web-based projects, this ViewState concept causes performance to decrease in cases
where a lot of data needs to be kept, while there is no performance loss because there is no
ViewState in projects using mvc structure.

Perhaps in doing so we may accidentally disrupt the operation. Thanks to this separation, we have
made the parts we need in our Model and View structure reusable in other projects. After all, our
only goal in software development is to be error free and save time.

MVC Highlights:

The controller acts only as a 'tool' for us. Business logic should be in Model, visual logic should be in
View, Controller should only provide information exchange.

There is no point in using it if the responsibilities of the Model or View are assigned to the Controller.
If we jump the algorithm to the Controller, there is no gain from using MVC.

Although many research results give examples from Web-based projects, MVC can also be used
when developing Desktop/Mobile applications. Because MVC is an architectural format.

As a Result

MVC is widely used today, mostly in web applications, and its popularity is increasing thanks to the great convenience it provides to developers. What are your thoughts on the MVC architecture? Don’t forget to share your ideas with us in the comments!