Backend and frontend development: principles and differences
Backend and frontend are two development methods that, in interaction with each other, combine the server and user parts of one service.
What is frontend development?
Frontend is a custom part Web-site. The main task frontend is to develop, create a beautiful and high-quality interface and at the same time that each element is responsible for its functions. All work is carried out with an inclination to a high level of user convenience and an attractive appearance of the site page. Frontend-the developer, in fact, makes the layout drawn by the designer alive, and some elements functional.
Frontend-earnings can be confused with the specialty “Layout designer”. However, the task of the layout designer is solely to place the finished design on the site. To frontend-the development also adds the task of linking the interface with server side side Web-site.
In order to perform this task frontend the developer must have the following:
- Skills with JavaScript;
- Understand CMS (WordPress, Joomla, Bitrix etc.);
- Have an understanding of the work of popular libraries;
- Understand CSS;
- Be able to use graphic editors;
- Understand databases and query languages;
- Have an idea in the architecture of the construction backend.
This list is the main one for frontend developer. Knowledge base and skills should develop in accordance with the experience of the developer.
frontend development includes
Frontend-development is work, first of all, to create a user interface. The user who switched to Web-the site, first of all, sees its interface. What impression of the user’s appearance and usability will remain will depend on the quality of the developer’s work.
What is backend development?
If frontend-development is responsible for the external part of the user interface, then backend responsible for the internal, technical part Web-site. Backend not visible to the user. All software operations are performed in the form of codes, and users see the result of the operations performed.
All backend-developers work on the client-server-client principle. Their task is to design the server architecture in such a way that the request given by the client is accepted by the server, processed and returned back to the client. If any error or failure occurs in the structure, the developer is obliged to find out the cause of the error and make changes.
Backend-development is an accurate and time—consuming job. There is no place for creativity and creativity: all the work consists in writing competent code.
For development, the specialist uses server-side programming languages. They are:
- Java;
- Python;
- PHP;
- Ruby.
Also, for high-quality work, the developer must have knowledge and understand the principle of database operation, the characteristics and capabilities of the hardware.
How do backend and frontend development interact?
Backend and frontend interact with each other according to the following principle. The user gets to Web-the site and interacts with the user interface. By clicking on any button frontend sends a request to server side service side. Backend accepts, processes the request and gives the request a certain look. The processed request is returned to the site and displayed to the user as frontend.
There are other types of interaction:
- HTTP-requests — the request is sent directly to the server. The server accepts the request and searches for data on the specified request. The server inserts the found data into the template and returns it back as HTML-pages.
- AJAX — (JavaScript and XML) the request is sent JavaScript, and the response comes in the format XML or JSON.
- Single-page application — data is loaded without refreshing the page. Operations are performed using AJAX.
- Ember — promotes the use of the application on the server and in the client. For interaction backend and frontend use HTML-code and AJAX.
Total
Under development backend and frontend practically do not overlap. However, the developed architectures cannot interact in any way without each other. The developers of each method are responsible for their hardware and develop their own skills in the selected area.
There are many software and services for each of the development methods. As a profession, on backend and frontend developers have increased demand. The developers themselves can earn decent money, taking into account the fact that they will understand the chosen field. This is due to the fact that on backend and frontend development is a complex, multi—level and time-consuming process. Any mistake or miscalculation can result in a big problem and it will take a lot of effort and time to find failures and make changes.