Chunk10

"Smart technologies have the capacity to enhance pleasure, simplify lives, and add to our safety. I wrote about people who had trouble turning on and off the correct burners on their stoves." (Norman, 2007)

Do you have the experience of being uncertainty of which burner to turn on? Do you have the experience of forgetting turning off the burner and going out of home? Do you unsatisfy the outlook of your stove? Watch the video below, this kind of stove will solve those problems.

"In the future, foods will have computer-readable tages so that the refrigerator will know what is inside it and what you are putting in or taking out." (Norman, 2007)

This great idea can not only be applied to refrigerator, but also to wardrobe, drawer and closet, etc. You may forget where the expected item is in your wardrobe, no matter whether the wardrobe is well organized or in a mess. It usually takes more time to find the item out. Can designers add a monitor to the wardrobe, through which you can see all your items from each angle clearly and find the item you needs quickly.

Chunk9

"Proper feedback can make the difference between a measurable, successful system and one that frustrates and confuses." (Norman, 2007)

Norman talked about inappropriate use of feedback is frustrating with simple devices such as elevators and mentioned his colleague's frustrating experience with elevators. His colleague missed  elevators several times due to no sound to signal their arrival or departure.

The calgary transit has been the top frustrating thing to me since I came here. The bus won't stop until someone drags the ring. As a newcomer, I'm unfamiliar with all the surroundings. Although I know the stop ID of my destination, I really have difficulty knowing when to drag the ring and when to get off without any kind of notice, especially when it is my first time to a new place. I believe I'm not the only one complaining about it. The bus transit has completely no communication with passengers. Appropriate feedback, like notifying us the name of next stop, will make a great difference in our convenient life.

"Quiet is good; silence may not be." (Norman, 2007)

Norman referred to that we need natural sounds created by internal operations of devices to reassure they are working properly. But I prefer to choose silent home appliances. The reasons are as follows:

1. Some noise poduced by home appliances is really disturbing. I enjoy quiet environment.

2. People can detect whether appliances are operating well or not without sounds.

For example, I don't want to hear the disturbing whir of the fan for home heating system. Without the whir of fan, I can also know if there's something wrong with the heating system through the temperature.

Chunk8

"The house has seventy-five sensors that measure each room's temperature, ambient light, sound levels, door and window positions, the weather outside and amount of sunlight, and any movements by inhabitants." (Norman, 2007)

Would you like to live in this kind of house? Everything seems to be under control of smart machines, and to be easy and convenient for human beings, while some people may feel uncomfortable. What's your preference?

"There may be much sharing of kowledge and activities, but it is still difficult to know exactly what another person intends to do." (Norman, 2007)

The success of intelligient machines largely depend on their communication level with people. But the problem lies in how can machines correctly know people's thoughts, as even people themselves are wondering what to do next sometimes.

"The designers are looking for large phenomena, major points of frustration or annoyance, where simple solutions can have a major, positive effect." (Norman, 2007)

This is probably the answer to why homes can make people smart. Only intelligient person can identify problems in daily life and find solutions to them. Most of us are quite "lazy" and adaptive to existing living patterns so that we do not brainstorm how to improve our life and regard it as a scientist' task. Remember that everyone can be a scientist, which depends on how hard you are planning to work.  

Chunk7

"Uses are not designers, and being able to envision something that doesn't exist is a rare skill. Conversely, designers are not users, so it doesn't matter whether they personally think something is easy." (Nielsen, 2010)

When conducting evaluation, designers should assign specific tasks to uses, not abstract ones, for users usually do not know what to do when facing a new technology. When designing new products, designers should consider from users' perspectives, like what problems may occur or what are the most difficulty part when using it.

"Only one spot generates valid data — the present." (Nielsen, 2010)

Observing what are people doing right now is an important research method, because it provides researchers the most accurate data of usability. Researchers can closely observe participants' behaviors and immeadiatly identify problems. Focusing on the present is better than looking into the past or future. Human memory can be fallible and future things are unpredictable so that present data is the most effective one.

Chunk6

"Because sound can be both informative and annoying, this raises the difficult design problem of understanding how to enhance its value while minimizing its annoyance." (Norman, 2007)

Sometimes, natural sounds are more annoying than pleasant music. I believe most people prefer to choose pleasant melody rather than kettle whistle as the signal of boiling water.

PS: I would like to answer Chris's question here: what are your thoughts about adding natural sounds to the Multimedia Bell. I would probrably not use natural sounds in our project, because I have a puzzle that what can be called natural sounds in real classrooms. The natural sound of boiling water comes from heated water moving about. What sorts of natural sounds normally take place in classrooms? Sounds created by moving desks and chairs? 

"Although quiet can be good, it can also be dangerous." (Norman, 2007)

Sounds inform us what happen in the surroundings. If there are no sounds, we may not notice the upcoming danger. If all the vehivles are designed to keep silent, there must be increases in traffic accident rates. The task for designers is to make it clear that when to use sound or not.