Tuesday, April 3, 2012

未來的IT行業將減少至三類職位


July 22, 2011, 10:04 PM PDT

英文原文:http://www.techrepublic.com/blog/hiner/the-future-of-it-will-be-reduced-to-three-kinds-of-jobs/8717


IT行業的就業市場正在經歷一場巨變,越來越多的焦點轉移到三類職業上。


最近幾年,許多IT職業都面臨著極大的困擾,這完全不同與十年前的景象。20世紀90年代末期,IT職業是職場驕子。IT員工短缺經常見報,通過培訓、認證和跳槽等手段,他們能夠要求很高的薪水。很多情況下,他們是某些關鍵職位的唯一候選人。那時候,IT行業被認為是朝陽產業之一,會不斷湧入更多更好的工作崗位,就像是自動化作業取代人工作業一樣。

不幸的是,這種幻想破滅了,或者說與開始的期望大相徑庭。

千年蟲危機爆發,緊接著互聯網泡沫崩潰,使IT職業風光不再。忽然之間,企業不再需要那麼多的程式師,創業公司也不再購買那麼多的伺服器,當然也不會雇用那麼多系統管理員來管理它們。

這個時候,美國公司對IT職業有一種廣泛的餘波。許多企業曾經相信IT技術能夠解決它們遇到的所有難題,所以對一些IT項目投入了大量金錢。IT技術在20世紀90年代極大的提高了生產力,造成了很多公司的過量和過快投資。結果就是很多龐大而又昂貴的IT工程破產。

2001年經濟衰退時,臃腫的IT部門成為裁減開支的主要對象,受到沉重的打擊。當經濟衰退持續到20022003年的時候,IT專家們互相轉告,他們一定要經受住這場風暴,情況將會很快好轉。但是奇怪的事情發生了,IT支出持續低迷,一直未見回彈。

到了2011年,多數IT部門都比以前慘澹。它們被大量裁員,或者將整個支撐部門外包出去。它們只剩下很少的人員在維護網路和伺服器,有的甚至將資料中心全部外包出去。1999IT熱潮時的職位,現在也能看到,但是再也不會出現用工短缺或者大量需求的情況了。

這是因為IT環境已經發生了戲劇性的變化。越來越多的傳統軟體被遷移到web上,或者至少是被部署在內部伺服器中,由流覽器來提供服務。很多嬰兒潮時代出生的懼怕技術的老員工,被千禧一代取代。他們不僅不需要太多的技術支援,還將IT部門視為提高生產效率的障礙。現在大部份員工使用IT技術都超過十年,跟以前相比變得非常熟練。此外,軟體本身也越來越易用,雖然仍不算完美。

那麼,現在的IT專家都處在怎樣的境地?未來IT職業又將走向何方?

1.諮詢顧問
讓我們面對現實吧,除非是很大的公司,否則多數的企業都會傾向於維持盡可能少的IT專家或者乾脆沒有。這並非是針對Geek,而是IT專家太過昂貴,而且當IT部門變得龐大和集中之後,它們會變成說“不”的專家。有時候它們的阻礙作用甚至大於促進作用。結果就是多數的IT管理和支撐部門外包給了協力廠商顧問。它們既有大型的跨國諮詢公司,也有轉為中小企業服務的個人顧問。很多公司,像IBMHPAmazon AWSRack space,會將資料中心等資源或者IT專家租借出去,進行部署、管理和故障診斷等。隨著企業開始轉向購買低成本、專業性強、24/7/365全方位覆蓋的恰如所需的IT服務,很多直接面向公司提供服務的IT專家也轉向為大型服務供應商或者諮詢公司工作。

2.專案經理
IT員工裡面,在裁員風暴中倖存下來的,很多都是專案經理。他們並不任職于集中的IT部門,而是分佈在各個業務部門。他們進行商業分析,幫助高層做出正確的技術決策。他們收集業務需求,與股東交流所需的技術解決方案,並且有前瞻性的尋找新技術來重塑業務。這些專案經理也會作為本公司針對IT服務供應商或者諮詢公司的協調人。如果你仔細尋找,就會發現很多項目經理正在朝這個方向轉變。

3.開發人員
目前為止,IT領域數量最大的職位是程式師或開發者。管理和部署軟硬體曾經是IT的一個重要組成部份,但是現在IT更多的是關於基於網路的應用程式,這些程式運行更穩定,只需要很少的培訓和技術支援。IT的另一個重要組成部份是移動應用——包括本地應用和網路應用。技術行業的重心,正在從軟體的部署和維護轉移到開發。這種轉變已經發生,並且在下個十年裡面會越來越快。






Monday, April 2, 2012

記憶力和年齡的關係【摘】


         這裡順便來討論一下記憶力和年齡的關係。大家知不知道人的一生多大歲數時記憶力是最好的?10歲?18歲?越小越好?錯!是30歲左右。一般實 驗顯示是2530歲,有些單純真對女性的實驗甚至發現是3540歲。年紀大,記憶力是非常好的,認為不好純屬為懶得記自己找藉口,而自我暗示的結果還 真讓你記不住。其實如果正常使用大腦,到70多才開始記憶損失明顯。而年紀越小記憶力越差,3歲時實際上長期記憶力幾乎是零。所以大家3歲以下的事一般都 記不得,有幾件事記得就了不得了。怎麼老有人說小孩子記憶力好呢?三歲小孩給他換個媽他過幾天就不記得了,還說好呢。所以我們發現很多家長讓小孩子背東 西,古詩啊什麼的,正是違背了兒童的思維特點而強迫他們使用最不擅長和現在最不用的東西,而放棄和壓制了他們應該開發的那些智力。每次想到這裡總來氣,大 人學習受點苦也罷,小孩子受了罪還受害。真是害人不淺呀!大家也許聽說過國外上小學上課盡是玩兒,很早就放學了,回了家哪有什麼作業呀?還是玩兒。有作業 也都是些小遊戲,小實驗項目等。到了中學還這樣,天天關心課外活動能力和交際能力,13歲沒找物件老師還找去談話問是否和異性相處有問題。(很多中國移民 小孩被老師找,回來一問是這事兒,家長當時都嚇壞了。)然後也沒有什麼高考,過SAT就成。SAT上那數學題讓咱初中小孩做,全滿分,這些小老外那叫覺得 難。你說他們不怕耽誤下一代?不怕,人家明白著呢。

     
看咱中國同學,恨不得幼稚園時就急著學小學課程,小學生可憐啊,早起天還沒亮,下學作業寫到天黑,週末還有課外學習。中學生更可憐啊,為了考上 大學了,那苦就不說了。高考,真烤啊。啊,我中了!考上大學了,這回可放鴨子了。敞開玩兒吧。再看外國同學們,上了大學了,功課突然緊了,每天學習跟 打仗式的,比中國一般大學學生的學習強度高幾倍。一門高數課我們要學半年,國外恨不得幾星期就學完還考試。能行嗎?當然行。因為人到了這個年齡,記憶力, 理解力都開始快到高峰,一個月學習的收穫比中學小學一年都多。(其實中國大學生也能作到,只是大多一學期都在玩兒,到最後兩週一突擊,好幾門都過,因為能 力一樣嘛。只是在國外上大學,每星期都是中國那最後兩星期)。結果本科時,人家把以前中學小學被咱拉下的早都補上了,到研究生階段一下就把咱蓋過去了。到 這階段,要做研究專案,需要創造力了。結果外國同學小時候開發的智力全用上了,中國同學到此時才思枯竭,小組專案中只有給人家找資料的份,人家還經常不愛 帶你玩兒。(很久以前考出去的中國留學生中有很多到了國外還是比較優秀的,但那多是人精,不能拿我們的人精跟一般外國人比。大家同級別比一下)。不說這事 了。改變教育體制是要靠大家努力的。

對外語學習的主要誤區


最近看到一篇文章,認為以下幾個觀點均是人們的誤解: 
 
  1.要有語言環境, 多跟外國人交流,最好是能出國,不久自然就能會說了。
  2.學習外語要多記多背,也就是說是用記憶學語言。
  3.想糾正發音,一定要專聽和模仿純正的發音,比如BBCVOA那種。
  4.要學習外語語法,如果語法熟練,說句子就正確了。
  5.要有詞一定詞彙量,要大量背單詞。但背英語單詞很難。
  6.以前學的是書面語或過時的英語,和現在口語是不一樣的,所以我口語不好。
  7學外語必須非常刻苦,長時間反復練習。

該作者認為:以上這些結論不但是錯誤的,而且基本上與事實是正好相反的。” 

想要詳細瞭解,可以閱讀原文: 

How to Become an Early Riser

May 23rd, 2005 by Steve Pavlina

It is well to be up before daybreak, for such habits contribute to health, wealth, and wisdom.
- Aristotle

Are morning people born or made? In my case it was definitely made. In my early 20s, I rarely went to bed before midnight, and I’d almost always sleep in late. I usually didn’t start hitting my stride each day until late afternoon.

But after a while I couldn’t ignore the high correlation between success and rising early, even in my own life. On those rare occasions where I did get up early, I noticed that my productivity was almost always higher, not just in the morning but all throughout the day. And I also noticed a significant feeling of well-being. So being the proactive goal-achiever I was, I set out to become a habitual early riser. I promptly set my alarm clock for 5AM…

… and the next morning, I got up just before noon.

Hmmm…

I tried again many more times, each time not getting very far with it. I figured I must have been born without the early riser gene. Whenever my alarm went off, my first thought was always to stop that blasted noise and go back to sleep. I tabled this habit for a number of years, but eventually I came across some sleep research that showed me that I was going about this problem the wrong way. Once I applied those ideas, I was able to become an early riser consistently.

It’s hard to become an early riser using the wrong strategy. But with the right strategy, it’s relatively easy.

The most common wrong strategy is this: You assume that if you’re going to get up earlier, you’d better go to bed earlier. So you figure out how much sleep you’re getting now, and then just shift everything back a few hours. If you now sleep from midnight to 8am, you figure you’ll go to bed at 10pm and get up at 6am instead. Sounds very reasonable, but it will usually fail.

It seems there are two main schools of thought about sleep patterns. One is that you should go to bed and get up at the same times every day. It’s like having an alarm clock on both ends — you try to sleep the same hours each night. This seems practical for living in modern society. We need predictability in our schedules. And we need to ensure adequate rest.

The second school says you should listen to your body’s needs and go to bed when you’re tired and get up when you naturally wake up. This approach is rooted in biology. Our bodies should know how much rest we need, so we should listen to them.

Through trial and error, I found out for myself that both of these schools are suboptimal sleep patterns. Both of them are wrong if you care about productivity. Here’s why:

If you sleep set hours, you’ll sometimes go to bed when you aren’t sleepy enough. If it’s taking you more than five minutes to fall asleep each night, you aren’t sleepy enough. You’re wasting time lying in bed awake and not being asleep. Another problem is that you’re assuming you need the same number of hours of sleep every night, which is a false assumption. Your sleep needs vary from day to day.

If you sleep based on what your body tells you, you’ll probably be sleeping more than you need — in many cases a lot more, like 10-15 hours more per week (the equivalent of a full waking day). A lot of people who sleep this way get 8+ hours of sleep per night, which is usually too much. Also, your mornings may be less predictable if you’re getting up at different times. And because our natural rhythms are sometimes out of tune with the 24-hour clock, you may find that your sleep times begin to drift.

The optimal solution for me has been to combine both approaches. It’s very simple, and many early risers do this without even thinking about it, but it was a mental breakthrough for me nonetheless. The solution was to go to bed when I’m sleepy (and only when I’m sleepy) and get up with an alarm clock at a fixed time (7 days per week). So I always get up at the same time (in my case 5am), but I go to bed at different times every night.

I go to bed when I’m too sleepy to stay up. My sleepiness test is that if I couldn’t read a book for more than a page or two without drifting off, I’m ready for bed. Most of the time when I go to bed, I’m asleep within three minutes. I lie down, get comfortable, and immediately I’m drifting off. Sometimes I go to bed at 9:30pm; other times I stay up until midnight. Most of the time I go to bed between 10-11pm. If I’m not sleepy, I stay up until I can’t keep my eyes open any longer. Reading is an excellent activity to do during this time, since it becomes obvious when I’m too sleepy to read.

When my alarm goes off every morning, I turn it off, stretch for a couple seconds, and sit up. I don’t think about it. I’ve learned that the longer it takes me to get up, the more likely I am to try to sleep in. So I don’t allow myself to have conversations in my head about the benefits of sleeping in once the alarm goes off. Even if I want to sleep in, I always get up right away.
After a few days of using this approach, I found that my sleep patterns settled into a natural rhythm. If I got too little sleep one night, I’d automatically be sleepier earlier and get more sleep the next night. And if I had lots of energy and wasn’t tired, I’d sleep less. My body learned when to knock me out because it knew I would always get up at the same time and that my wake-up time wasn’t negotiable.

A side effect was that on average, I slept about 90 minutes less per night, but I actually felt more well-rested. I was sleeping almost the entire time I was in bed.

I read that most insomniacs are people who go to bed when they aren’t sleepy. If you aren’t sleepy and find yourself unable to fall asleep quickly, get up and stay awake for a while. Resist sleep until your body begins to release the hormones that rob you of consciousness. If you simply go to bed when you’re sleepy and then get up at a fixed time, you’ll cure your insomnia. The first night you’ll stay up late, but you’ll fall asleep right away. You may be tired that first day from getting up too early and getting only a few hours of sleep the whole night, but you’ll slog through the day and will want to go to bed earlier that second night. After a few days, you’ll settle into a pattern of going to bed at roughly the same time and falling asleep right away.

So if you want to become an early riser (or just exert more control over your sleep patterns), then try this: Go to bed only when you’re too sleepy to stay up, and get up at a fixed time every morning.