In his famous book "The Design of Everyday Things" Don Norman analyzes many examples from everyday life, telling what mistakes can be caused by bad design. More precisely, design itself from the point of view of design, if we understand it as art, can be high-class, trendy and almost perfect. But if we understand design as rules for creating something not only aesthetically pleasing, but also meeting the user's needs, then design can be really bad and even dangerous. Sometimes it leads not just to user dissatisfaction, but to real disasters. For example, if it concerns the design of transport control panels or nuclear power plants.
In the book, Norman offers 7 principles of good design and 7 steps for designing it. He says that everything created by man essentially has a design. Therefore, his principles of human-centered design can be considered universal. But we will focus more on UX design, i.e. interface design developed with its convenience for users in mind.
Don Norman is a colleague and partner of Jakob Nielsen, another recognized classic of usability. Perhaps that is why his 7 principles of good design echo Jakob Nielsen's 10 famous heuristics . UX designers try to apply these heuristics when designing and auditing truly user-friendly websites whatsapp australia and online stores . And Norman's 7 universal principles go well with them.
7 Questions on the Path to Good Design
So, Norman's 7 design principles are:
opportunity,
meaning,
projections,
feedback,
conceptual models,
clarity,
restrictions.
Not all principles are obvious, so we will consider each of them in more detail below. But first, you need to understand the basic steps by which Norman suggests designing, essentially, any thing if a person will use it. This is a kind of philosophy of human interaction with the world, which also consists of 7 stages.
Any action can be broken down into steps: set a goal, perform the action, check the result. Norman further divides the steps into 7 stages: "one for the goal, three for execution, and three for evaluation:
goal formation;
intention formation;
determining the sequence of actions;
performing actions;
perception of changes in the surrounding world;
interpretation of changes;
"result assessment".
These stages of human interaction with the surrounding world correspond to Norman's 7 questions that we ask internally. Visually, they look like this:
Norman's 7 Principles of UX Design. Human-Centered Design
Preliminary feedback is the information we receive in the process of studying and working with a device, interface, or thing. For example, we evaluate where the handles and buttons are, what they can be responsible for. Feedback after an action allows us to interpret and evaluate the results of that action.
When designing any thing and an interface in particular, a designer can focus on these questions to understand whether his design will give a person an answer to them.
tation.