charpter one could be divided into three parts. 

Firstly. it introduces what is interaction design,The definition of interaction design and the relationship between interaction design and human computer interaction design.

Secondly, during the process of interaction design, there are three key elements should be considered. They are : users, usability goals and user experience goals.

Thirdly, during the process of evaluating an interactve product, two principles should be involved : design and usability principles which design principle can be explained as heuristics principle.

 

End...

The floor of X: the greatest integer which is most equal to X (the integer on the left side of X)

The ceiling of X: the nearestinteger which is most equal to x( the integer on the right side of x)

Fact: For  any integers m and n , and m is less or eaual to n. given a positie integer k, then the number of the multiples of k between m and n is the floor of (n/k) subtract the floor of ((m-1)/k).

Fact: the floor of (x+t) is equal to the floor of x plus k. for x is every number and k is an integer.Also the ceiling of (x+t) is equal to (the ceiling of x ) plus t.

 

 

Today is cloudly and windly, I was supposed to be in school, but i didn't come although it is very important today. The reason why i didn't come is because there are so many classmates in school, most of them should be happy while orthers could be sorrowful.., I do not know how to face them who looks sad,they are all my brothers..I know it is hard to them. but I wish they can go through this sorrowful moment and I believe they can make efforts and finally change this bad thing, I will be always support them.

After two weeks , i will face harder study, frankly, I'm very worry about this. I'm not genius no matter in china or australia, and I acquaint many people in australia, they are intelligent and so talented, they can finish an assignment via more judicious way and less times, I do not know whether i can keep up the pace same with these people, whether the efforts i make can be tranfered into achievement.....But one of my friend said"来到澳洲使我学会了用乐观的态度去面对各种现实的问题，懂得了一个人不经历风雨，不能见彩虹的道理。" After watching and understanding this sentence, I'm encouraged greatly, it is a simple sentence but the people can realy understand the meaning of this sentence is rare, even you understand , can you genuinely achieve? I do not know whether I can see my iris, but I should try , try my best...even I can not be the best... I also wanna be the second..

Now , I also remembered a word from my friend when we were playing card, he said :让暴风雨来的更猛烈些吧。 it is a funny word , in different situation , this word encouraged me. I should face any difficulties with this kind of courage and confidence. nothing can stop me going for knowledge..

Now i feel better, it is not because I written so many useless words, it is because I figure out something, something will be always with me not only in the future two years but also in the rest of my whole life...

In the future two years, I do not need girlfriend, I do not need to be famous, I do not need money, the most significant thing I need is knowledge.

It is 0:00 now, suddenly, I miss my family, I miss my parents , I miss my sisiter, I miss my brother, I miss my friends , I wish they will be always healthy and youthy.

To be continue........

 

Today is a nice day, no rain, no wind , the sunshine is  warm enough to have a good rest. I wake up a little bit late this morning. When i got up, my friend leave me a message which asked me to go out for lunch. then we went to the corea restaurant, that restaurant is nice , we ordered the delicious seafood and tofu hotpot which is the first dish in the menu . What's more , the assistants in that restaurant is very friendly. When we finished , he even said a corean words which means thank you for coming to us. After we leaved that restaurant, we took a walk, then went to another friend's home. we sitted together , drinking some alcohol , smoking a little cigrattes, talking about anyting. The feeling which sit with friends and talk with friends about anything is very good.

At night , after our strong recommendation, we five hansome young boys went to the corea restaurant again, undoubtedly, the assistants were very shocked when saw we come again in the same day. I think it is never undisappointed if we come to that restaurant again in the future because it worth we try again.

Now , I'm watching a good film named spider-man3. this movie takes my 2hours to download, after watching it , I believe it worth me taking so much time.

This week is gonna be end, tommorom , i gonna decide which courses i should study in order to leave more time to prepare because the major i will study is very difficult. So. It's time to sleep now .so.I can have enough energy for tommorom's work..

 

 

Today is a fucking bad day, nothing unusual happen, like what i did usually, dashing the lunch off with my friend, enjoying some movies, reading some books , but I did not finish the most important thing which is chosing the courses. Frankly, I feel a little bit guilty because I made this decision yesterday but I did'n finish it . Actually, I also do not know which couses I should chose. there are all strange to me, maybe I should listen to some suggestions from my friend who is very good at computer technology. Anyway, the feeling which do not finish the original goal is not good.

 

The mp3 player is playing a beautiful song named love is color blind. In the past , I did't like western music, however, after listening to this music, I find that I love this song . the feeling can not be expressed. it is wonderful.. ."it do't matter if you're blind.....love is color blind....be pround of youself... put away your prejudice..." the rthym is beautiful.. I believe this song must be popular not only in western countries but also in eastern nations. hehe.. because there is a rule.. each song i love always can be popular...haha

 

Today , i write this a couple of minitues earlier..why? because i found there is nothing i can do..movies is done...songs is done...everything is done...the things are not done is just things I do't like to do...the speed of network is slow... I can't download anyting,  what i gonna do?? I constantly ask this question to my self .. suddenly... I remembered that I can write diary. Three days ago I decide create a diary to record important things I did everyday, maybe two years later, when I watch this diary, I will smile or cry..time past qucikly...I realy want to see this diary two years later..

 

Now.. I don't want to stop..because i will be boring again if I finish today's diary. Writting diary in english not only record the usual things everyday but also can improve my english. Just half year ago , when I arrived australia, I thought my english could be very good after only 3months. but the fact is that half year pasted , my english is not improved , in orther words .. just a little improvement. mybe it is because the writing practises is too rare. so .. I must practice by my self. I always remember there are two reasons why I come to here. the first is knowledge, the latter is english. When I was a little child, I very admired those people who can speak english smoothly, at that time , I wanna be one of them.

 

Actully, today, I do not like eat anything , maybe it is because the weather, the fucking weather. In the taiwan restaurant , I just ordered a normal dish which is fried rice with egg (I can remember the exact name.hehe). Although I feel hungry now , I don't want to eat anything. maybe I should go to sleep, forger the stupid weather , forget the fucking rain which make my clothes moist again ....

 

Seven ten  cloudy at begin and then rainy at night

Tranformer.. Actually, I know this word a couple month ago. I think most people in my age know this word. this word means a very very very very famous cartoon when I was a child. Now , it has been made on the screen. I went to the cinema with my friends in order to watch this movie which contains many fantastic dreams in our childhood. undissapointedly, this movie is very fantastic , it is awesome. we sit in the second row and deeply feel the process of transforming.  Overall. this movie's plot is not intrguing but the process is very intensive.

昏昏沉沉了几天，突然醒来，我终于意识到了，我是来学计算机的。。。