Design is a process of predicting and planning the creation of objects, interactive systems, tools, etc. It is user-centered. It is about finding concrete or abstract solutions to people's problems or needs. Although the design is a broad concept, its meaning may differ from one area to another. Product design, sound, virtual reality, interaction design, car design, video games, software interfaces, home, and office interiors are some of the subgenres of design.

There is a common misunderstanding that design exists to embellish something. It isn't just about aesthetics or about adding ornaments to something. The purpose is so important that beauty can be sacrificed for it. The design firstly aims to make the user's communication with the environment more natural and complete. It is often associated with art. The forgotten part is that the design is as much science as it is art, it contains elements from both. While designers can express their feelings and thoughts through their works as artists, doing so is not their main goal. On the other hand, it is similar to science in terms of seeking solutions to problems. As Steve Jobs said: “Design is not just what it looks like and feels like. Design is how it works”. 

"Designers work with data to see the problem and find a solution, so the designers' tool is research, not decoration". They look for the solution outside, so they don't always have to create a new solution. If a new approach is created, its use depends on it being better than any other existing approach.

"The best design is one that the user is not aware of."

This rule is especially true in interface design. Another important feature is that the user can understand and use the design easily when he sees it. In such a design, the user is guided by an invisible hand of colors, shapes, contrast, and repetition.

In summary, although the concept we call design seems to have merely belonged to a field related to visuality, this is not the case. With every problem we encounter, every search process we enter to solve the problem is the design itself.

"Humans speak through languages and things speak through design."

https://www.strate.education/gallery/news/design-definition

https://shakuro.com/blog/the-meaning-of-design-what-design-is-and-why-its-important