CS511_Topic014

Brief Summary

This video discusses web architectures, focusing on two-tier and three-tier models. It explains how websites function with client-side and server-side interactions in a two-tier architecture. The video also introduces the three-tier architecture, which includes presentation, business logic, and data layers, emphasizing the benefits of separating these layers for easier maintenance and modification.

  • Two-tier architecture involves client-side (browser) and server-side interactions.
  • Three-tier architecture separates presentation, business logic, and data layers.
  • Separating layers simplifies maintenance and allows for modifications without affecting other layers.

Two-Tier Architecture

The two-tier architecture is fundamental to how websites operate. It involves the client-side, which is the user's browser, and the server-side, where the website's data is stored. When a user accesses a website, the browser sends a request to the server, which then responds with the content to be displayed. This basic setup is essential for all websites, forming the foundation upon which more complex architectures are built.

Three-Tier Architecture

The three-tier architecture divides a web application into three distinct layers: presentation, business logic, and data. The presentation layer is responsible for displaying content to the user, handling the look and feel of the website. The business logic layer contains the functional logic that processes data and manages interactions. The data layer is responsible for storing and retrieving data, often involving databases.

Benefits of Layer Separation

Separating the presentation, business logic, and data layers offers significant advantages in terms of maintenance and modification. When changes are needed in the business logic, they can be made without affecting the presentation layer. Similarly, updates to the data layer do not require modifications to the presentation or business logic layers. This separation simplifies the development process and reduces the risk of introducing errors when making changes.

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Transcript

Full transcript of “CS511_Topic014”. Click a timestamp to open the video at that moment. Need another video? Use the YouTube transcript generator.

0:00 In China we will see that in the development that we have, we have the main architectures which is used if we look at any website when we are just setting it up and sending its contents in our browser then 16 March is the first two years old door but from the software development perspective from the software engineer perspective it is very easy for us to deposit it in the last years inside this we make it default so from the weapon changing perspective the maintenance of the rest of the website becomes easy so in

0:47 its simplest form every website sports on the website space Stuart Pearce first your plant site will be this here is the giver and the subscription through the browser will be our client side of the first year or the second year it will be our head in this occasion between the point there is internal access through which we will get the requests but the internet has not appeared as medium so we have a web browser The interior is done and the website is in the same plus form as every website for every website at least two tier architecture but we

1:33 can add interiors further from the white inspector * multiple times this architecture is implemented only on the server side and then we have many variations of it there is a secret architecture on the waist we divide it in such a way that inside it we use test which is responsible for the contacts to be displayed what will be visible to each other in removing the contact structure what kind of person star player on ke paul this thanks for anti depression tension so first clear presentation layer now for dynamic content to be generated

2:20 we must be using some business law some function logic on that we used to set its code off what is the advantage of operation from presentation that when we have to change our business logic business magic because for dynamic content what thing do we put in the contacts We have to add it, so it will be different continents and rates every year according to every Gujjar, so that is the updates logic, now the function logic that is clear with us, inside that layer we will get the information, what will be the benefit of this is that when we have to change the countrymen, then we do not need to change the presentation related fear, we have

3:06 set it as a separate text, we have set it in the presentation layer and when we are doing modification on our business democracy, then we have that unwanted which is there earlier, we will work in it and then the database that we have is one or two beta database files that come on the moon, it will go to us over 30, so pet food is only responsible for storing the time, this plate, you perform your operation from beta and we have pest management choli, for that we have the response that we have inside the web for the particulars, they are fridge And we specify on the money that is back to the model view controller, if we talk about it then we talk about the difference between the producer

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