These principles of usability help to form a primary understanding of what the site should be like, with which it will be convenient for the user to interact.
Oftentimes, the main reason for getting a high user failure percentage is quite simple — slow page loading speed. Visitors do not like to wait, therefore it is easier for them to close the tab and go to the next resource. The same effect is formed when the interaction with the site is characterized by the presence of systematic errors. They can occur at the moment of ordering, when buttons are not clickable, etc. All this significantly spoils the usability of the site.
Regardless of how interesting the content posted on the resource will be, it will be difficult to perceive it if the design of the site is unpleasant for perception. In this case, the usability index is influenced by the size, color, and readability of the font. A well-executed, laconic design has not only an aesthetic meaning, but is also considered a significant functional part of the site.
There is also a usability index for texts. Users read them diagonally to get the information they need faster. No one will read a large number of letters, especially without illustrations and sequence of structures. That’s why it is important to design texts using lists, headings and pictures in order to attract the attention of users and orient them regarding what can be found in the article.
The main elements that make up the site (filters, navigation) have a direct impact on the convenience of visitors' interaction with the resource. If in order to find the required product in the store it is required to fill in several dozen fields, the user will most likely give up this pointless waste of time and go to competitors, where everything is done more simply and technologically.