Understanding the user experience based on the Carnot model

The main discussion in this paper is How to understand the user experience based on the Carnot model, and give some practical examples to illustrate.

Yesterday and Chen, such as dry people to eat to serve or more precisely is the user experience famous submarine fishing hotpot, after eating, a few have not eaten the sea turtle that is "on the spot is shocked", to this as a primer, I would like to use the classic model of customer satisfaction to sum up some of my understanding of user experience.

The Carnot model is a simple and elegant model that I highly recommend for evaluating and planning customer satisfaction and product quality by the Japanese quality scientists Kano. The general implication is that the quality of a product consists of four dimensions (dimension), as follows:

The first is the necessary quality, that is, it is silly force products must be stupid, it is not cool products. For example, hot pot must have beef, mobile phone must be able to call, to find a wife you must be a male silver. To meet the needs of users in this dimension is a must, there is no escape.

Then the one-dimensional quality, simple one-dimensional quality is it silly force products are stupid, it is a cool product. For example, hotpot restaurant mutton cheaper and more cool, the faster the speed of the Internet users will be better, the greater the hard drive, the more the more the more the more durable men ...

Then is the quality of charm, that is, without it products will not become silly, but with its products immediately cool. such as seabed fishing and so on when the table can do the nail under the Checkers, ipod Touch Management music album can cover Flow, you just bought back the hard drive incredibly full of Japanese love action film, single Drop That man actually has a Mei-XI prestigious MBA degree ...

Finally, there is no difference in quality, that is, it has no effect on the product at all. such as the cottage machine it can shave, hot pot shop toilet sewer pipe quality ...

The Carnot model can be represented by the following two-D coordinate graphs:

Well, the above is the literature review stage. It must be pointed out that several quality dimensions can be transformed from one to the other. For example, when the television was invented, no one thought of needing a remote control, at this time it is the quality of no difference, then some people feel asleep watching TV when the old to crawl out of the quilt to press the switch button is very uncomfortable, so he took a stick to point button, more intelligent people invented the remote control, as a novel function. At this time the remote control has become the charm of quality, as everyone began to lazy, more and more manufacturers to join the remote control, the TV is the remote control is high-end, there is no low-end, so turned into a one-dimensional quality. In the end, we all think that the remote control is the necessary quality, what do you think if you buy a TV with no remote control?

Here's the formula for achieving a great user experience:
Great user Experience = The quality of being satisfied must be good + (but not necessarily great) one dimensional quality + some flash charm quality.

Some of the corollary of this formula, or the fact that it supports this formula, is:

Crappy products deviate from user needs, good products to meet user needs, great products create user needs
Although this has been a lot of times, but with the Carnot model to explain that the user needs to express only the quality and one-dimensional quality, then if not satisfied, the product must be failed. However, the quality of glamour is precisely the unknown demand that users cannot open their mouths directly. For example, Ford said, "If I ask consumers what they want, they must say a horse that runs faster." Before the iphone comes up, no one will tell you that you want to enlarge the picture on your phone and start with two fingers, and they'll just tell you, oh, I want a zoom button and a zoom button.

Therefore, there is no great product without charm quality. Without multitouch, there would be no iphone detonation, no wheel and white shell without an ipod.

Everbright is not good, while one-dimensional quality does not need to be the best
Because of diminishing marginal effect, it is more than worth to improve one dimensional quality. Intel has been raising CPU frequencies to 3. 0Ghz found it inefficient, then learned to improve efficiency, now you are willing to buy 2. 4Ghz's Core 2 or 3. What about the 0Ghz P4? To apply a parody of the banking advertising: Everbright is not a good thing.

It's still an example of an iphone that's a great product. iphone launched when the mobile phone industry's one-dimensional quality of the camera pixel, screen resolution, storage capacity and so on, the iphone at that time these indicators are only the mainstream bias.

More examples include: the taste of the bottom of the pot is actually only moderately biased, Google search engine blind test Chinese search defeated Baidu but people still feel Baidu search Chinese good.

Of course, if you can find a way to the acceptable cost of one dimensional quality to do far more than people imagine, that is called disruptive innovation, at this time the extraordinary one-dimensional quality change for the charm of quality. such as Gmail

The quality of charm is short-lived

One dimensional quality of super power can be turned into charm quality, the same charm quality can and generally will quickly converted into one-dimensional quality.

When Gmail first appeared, 1G of capacity turned everyone on, and a Gmail invitation sold up to thousands of dollars. This is in the e-mail capacity of the general 20M era, G-level capacity users never expect, so it is typical charm quality. What now? Mailbox capacity No 5G you are embarrassed to greet people.

For example, the sea bottom of the street dance is one of its characteristics, can be regarded as the charm of quality. After a number of hot pot shops have also launched artificial pull surface services, however, these hot pot shop attendants in the face of the time is often just routine, sluggish movement, far from the bottom of the staff to be fun. This is a case of a failure to steal the glamour quality ...

Therefore, this requires enterprises to constantly find new charm quality points to maintain the advantages of user experience. Therefore, innovation is the source of High-tech enterprises to survive.

The quality of charm comes from the details
This is very good understanding, very obvious user needs, should have been found by the manufacturers and resolved. So the charm of innovation can only come from the research and pursuit of detail.

For example, one of the key reasons I chose to use Chrome instead of Firefox as my preferred browser is the two details of the Chrome tab bar: Unlimited y-axis depth and smart label width adaptation. It is a separate article to make the two points clear and to skip.

Why the emperor is generally not a great product

Friends have a N97, from the configuration of N97 almost every indicator is the highest end, much more than the iphone, camera pixels, memory size, screen size, physical full keyboard, and so on ...

N97 is the emperor, but in my opinion, not a great product. Because although it climbed to the top of most one-dimensional quality dimensions, when it lacked the charm of quality. The iphone, for me, is N97 completely defeated by the smooth touch experience. N97 lacks a wow moment, it's more like a stack of powerful technical parameters.

The Carnot model can also be applied in many ways. For example, a friend, job search, application, you can use the Carnot model to analyze your four quality is what, so purposeful for each other (love object, the right company, Dream School) to create a great product (yourself). This is something.