WHY SHOULD WE USE MVC PATTERN ?

[HoangLiarPhuongLe]

MVC Design Pattern stands for Model - View - Controller, this is a popular architecture for structuring many websites:

Model: This is the part that has the function of storing data and re-visualizing objects that will be used in the system

View: This is the user interface. Everything users see on the Website is the View

Controller: This is the part whose main function is to create a link between View and Model, in addition, it also has another function which is navigation

Processing flow of the MVC pattern:

1. When a user sends a request, the Controller will be responsible for seeing if it is a URL request or what event it is
2. The Controller will then process the input and then communicate with the Model
3. The Model will prepare the data and send it back to the Controller
4. Finally, the controller will send that data to the View and the View will display it to the user on the Website

Here are several reasons why the MVC pattern is commonly employed:

• The biggest advantage of the MVC model is that it is divided into 3 separate parts: View, Controller and Model
• Because it is divided into 3 independent parts, it is very easy for testing and maintenance
• The MVC model supports rapid software development and parallel development. For example, with 3 independent parts, people can work on the View part while others work on the Controller part without affecting each other
• The MVC model has a simple structure, but besides that, the interaction flow of this model requires new users a lot of time to understand and control the flow of operations of the MVC model.

[hungnguyenhuu-agilityio]

Processing flow of the MVC pattern => About this one, the first thing is that, controller will responsible to show up the View (which UI need to show first). And for the next steps, user can interact with the UI which have rendered already (this is the step 1 you mention above). I think you miss step 0 that I mention. ^^

[hungnguyenhuu-agilityio]

Here are several reasons why the MVC pattern is commonly employed => You listed out almost of the benefit relate to MVC, but you may miss the important things that, MVC will make sure the security of your app. Imaging that, the user from View won't cover the code flow behind, they just see the result, it good for them and for your app data. MVC will make sure your data which showed to the user does not carry any sensitive information. Any strange actions from user will be reject from controller and it will not affect to your data also.

[HoangLiarPhuongLe]

@hungnguyenhuu-agilityio I have read your comments and understand them all. Thank you for your support and suggestion, it has helped me improve a lot and better understand the MVC pattern. Thank you again for your invaluable support and I hope you have a good day.