The visual elements in excellent web design

Have you ever been in such a situation? You enter the conference room and find that the switch panel on the wall has many buttons of the same shape, you don't know the light, the control projector, you will probably use the "Trial and Error Method" method to explore each of the functions, although the process will only take less than 10 seconds, but the key is why we have to stand on the side of the switch Control Panel, Keep trying like a fool and endure the bitter fruit of poor design.

Donald A. Norman (author of Design & Daily life) mentions that one of the essential elements of good design is "legibility". Legibility is when you see the look of a tool or instrument, you will know how to use and operate, and the appearance can give immediate guidance; For example, if you are standing at the entrance of a shopping arcade, if the door has no armrest, or the armrest is on the other side of the door, you immediately realize how to open the door, which is "Push away"! This is the vision, and we know how to use something if we look at it.

Easy to remind users what functions and how to use the buttons of the switch Control Panel. Back to the example of the gate, the handrail reveals the method of opening, and without the armrest passes the message of execution: push. Good design takes into account both the legibility and the customary behavior of the human door, so that people do not need to learn before using these instruments.

Compared with the physical, web accessibility seems to be more easily achieved. A limited number of actions can be taken after you log on to the site, including clicking, Scrolling, and typing. Any web usability book will also mention these rules, such as the use of blue text, raised buttons as a click Inducement, long articles to use the scroll bar, and the type of position to rectangular lattice. These laws are more prevalent and pervasive, but have you ever questioned them? I think the "Blue text as a click inducement", is through learning and error, and is not related to the easy vision. Color is the world, most people think Blue is cold, but the color is very personal, my annoying boss is very like blue, so I resist the blue. Blue and luring Click seems to be irrelevant, I think it is through the user's long-term training and identification, only to evolve into a "Web luring click of the color", perhaps I would think that the blue text is through collective recognition to develop into a system image.

Return to the conference room of the switch control Board, I want to quickly distinguish between the lights and projector buttons are placed in different control panels, in general, the conference room lights must be more than the projector, when you found that the switch control Board has more than one button, is probably the control of lights. See, and then understand its function, and can be used in real time, this is what the visual ability can do.

What are your views on the subject of legibility? How is the legibility better applied to web design ?