

Since the developer of imDict, Gao Pinker planned to embark on a major upgrade for imDict, I was commissioned to design its gadget UI, new profile picture and website.
Here they are:
1.Gmail & iGoogle gadget
5.Other webpages(Everyday English/ Google Images/ Wiki/ Visual Thesaurus)



First, please answer these two question:
1. Mike completed piano level IX while Jennifer passed level III, who plays piano better?
2. Mike got a certificate of Japanese language level I while Jennifer got level III, who is better at Japanese?
We usually meet a handful of indexes or certifications presented in form of number but still feel confused about the meaning that those numbers stand for. First class scholarship implies greater accomplishment than Third class scholarship. But a five star hotel is much more luxury than a three star hotel. Certainly you are clear about scholarship and star-alliance because you touch this concept quite often in your daily life. But if you are not enthusiastic at Chinese Chess, how can you that less the number of level represents more excellence?
This is a daily usability problem and you can find it everywhere. When I was in China, I have never figure out what should I wear if the wearing-index is 4 or should I go to third-class hospital or first-class hospital (Now I know third-class is best from google).
So, what’s the reason behind this perceptual difficulty?
In my opinion, the reason is that numbers can only tell us the relationship in several aspects like greater or less, bigger or smaller, longer or shorter. However, there are more relationships that cannot simply be interpreted in such aspects. Take the car-washing index in China as an example, why six means more suitable for washing than five does? Why more severe the level disability can be represented in greater numbers of level? If the relationship between objects or situations cannot be interpreted quantitatively, then they are not good to be classified in numbers.
Now let us see the answer of the two questions in the beginning of this article: Mike plays better at piano and also be better at Japanese. So a new question arises: even it is good to adopt quantitative interpretations, there exists a problem of direction: should the number of level be greater if the situation is more positive or negative? Sometimes greater numbers will give people the feeling of positive but in some situation it is just opposite, for example, the class of cabin. Such phenomenon may rooted in some historical or social tradition or because of the difference of people’s perception.
OK, then how to reduce the trouble of quantitative classification? I think there are several points that needs designers’ attention. First method is to use more text. A good example is the classification in airplane: we have first-class, business class and economical class. Thus, for example, the cold-catching index can be turned to”easy to catch cold”, “ possible to catch cold” and “normal”. Presenting in color is also a great idea, color is broadly used in such as weather map or terror alert level.
If we have to use numbers, I have two suggestions: 1. keep it the same as the international standards or custom. 2. If there is no universal principal, then it would be better to do some user test to determine from which interpretation will the users get an easier acceptance and better understanding.
Number is just a very tiny detail in usability design, but it still result in bunch of problems. As a designer, we must be sensitive and vigilant to this details.