The complex and layered structure of modern web applications requires delineating the areas
of responsibility of developers. In programming, it is customary to divide the work of a
project into two parts: client and server.
The frontend refers to that part of the web application with which end users interact. The
backend is responsible for the server side, where the work with data is implemented. The
front-end developer does not need to understand how the server functionality works, and the
back-end programmer may not know the details of the client-side implementation. There are
programmers who are able to create a complete application, such specialists are called
full-stack developers.
The program code that is responsible for user interfaces, as a rule, makes up a smaller part
of the site. The backend is responsible for storing, receiving and transmitting data,
calculations, as well as business logic and rules by which the site operates. These system
components can be powerful and functional without having user interfaces.
For clarity, let's present an application screen where you can view the profile of a
registered user. Like, for example, on social networks. The frontend is responsible for the
appearance of this screen, which tells the browser where the user's photo will be
located, and where the name and status are. But it is the backend that determines which data
to take from the database for a specific user and passes it on for display on the site.
When transferring tasks to a frontend performer, it is enough to provide design layouts.
Outsourcing the development of the backend component is a more difficult task, it is
advisable to take into account the subtleties of the design work.
To get the desired result, it will take an effort to describe the business requirements of
the project. On their basis, experienced performers will be able to correctly describe the
functional requirements and draw up a technical task.
