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Wed Jan 22 20:38:44 HKT 2020
From /weblog/business
P2P filesharing can actually helping music sell, according to this article, if there is large amount of people download, this is a very good marketing tools - https://theecommmanager.com/what-happened-long-tail/ After you spend so much effort of promoting your product, may be you miss promoting your product to YOU?? And there are millions of YOU all over the earth? http://software.ericsink.com/entries/Note_to_self.html promotion, mix with free service and love - http://blogs.zdnet.com/ip-telephony/?p=1588 Name is important - http://www.goodproductmanager.com[..]4/pick-the-right-name-for-your-projects/ Sometime, it would be a nice promotion of comment your product in negative way, some how - http://www.codinghorror.com/blog/archives/000971.html?r=11182 The official definition is that marketing creates demand, while sales fulfils demand, how Joel demo software - http://www.joelonsoftware.com/items/2007/11/16.html First to release may be worst than the 2nd one - http://www.goodproductmanager.com[..]window-as-part-of-your-product-strategy/ Timing is VERY important Guessing if we have short and frequency release, we don't need to save any features. However, in case if our release cycle still long and big, this may be a good idea. - http://www.goodproductmanager.com[..]2009/11/10/save-some-features-for-later/ Learning US. style of marketing - http://cn.wsj.com/big5/20131204/eoe072653.asp?source=rss Analysis why ice-bucket-challenge can be so popular - http://www.inside.com.tw[..]/26/ice-bucket-challenge-viral-marketing
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Tue Jan 21 08:00:48 HKT 2020
From /weblog/software_engineering/testing
If you write the test after you've written the code, it's much more likely that you'll write the tests that will pass what you've written. That's just how our brains work. If you determine the criteria for whether a decision is good after you've already made the decision, it's much more likely that you'll create criteria that justifies the decision that was just made. That's just how our brains work. Determine how to assess whether something is good before you implement it and/or before you make a decision. Otherwise, you will tend to be emotionally attached to what you just did, what you just decided. http://jchyip.blogspot.com/2011/09/criteria-first.html My Top 5 ways to reproduce a "Hard to Reproduce" Bug! - http://software-testing-zone.blogspot.com[..]/my-top-5-ways-to-reproduce-hard-to.html Common TDD issue and suggested solution - http://www.agileadvisor.com[..]utomated-test-problems-address-root.html http://biblio.gdinwiddie.com[..]om/biblio/StudiesOfTestDrivenDevelopment http://www.notesfromatooluser.com[..]ptions-with-test-driven-development.html http://blog.goyello.com/2011/08/29/what-does-tdd-mean/ https://juristr.com[..]014/05/told-you-that-testing-is-a-waste/ https://www.thoughtworks.com[..]-best-thing-has-happened-software-design https://itnext.io[..]evelopment-is-dumb-fight-me-a38b3033280c Does this mean I think you should skip TDD for programs you’re going to run once and then throw them away? Well, I’m closer to OK with that than I am to the other cases here, but I often spend enough time editing and rerunning to make me think there was probably a central bit of the program that would have benefited from some TDD. https://ronjeffries.com/articles/020-01ff/when-not-to-tdd/
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Thu Jan 16 08:13:43 HKT 2020
From /weblog/software_engineering/team
https://martinfowler.com/articles/on-pair-programming.html How work alone might be better than pairing - http://techcrunch.com[..]/03/pair-programming-considered-harmful/ When to pair, when not to - http://www.markhneedham.com[..]ramming-the-disadvantages-of-100-pairing This is an excellent arguement -
It's only worth pairing on complex code, rote code yields no advantage.
I think there is a point to this - pairing is about improving design and minimizing mistakes. Rote code that's simple to write yields little opportunities for pairing to make a difference.
Except this: writing boring rote code is a smell. If I'm writing boring repetitive code it's usually a sign that I've missed an important abstraction, one that will drastically reduce the amount of rote code to write. Pairing will help you find that abstraction.
http://martinfowler.com/bliki/PairProgrammingMisconceptions.html Common pitfall of pairing http://blog.jayfields.com/2007/09/distracted-pair.html http://blog.jayfields.com/2007/09/uninterested-pair.html http://blog.jayfields.com/2007/08/spellchecking-pair.html Look like a good way to start pair programming http://magpiebrain.com[..]02/13/pairing-pattern-ping-pong-pairing/ http://c2.com/cgi/wiki?PairProgrammingPingPongPattern Discussing pair programming - http://www.codinghorror.com/blog/archives/000999.html Experience sharing of working with expert - http://dreamhead.blogbus.com/logs/13258146.html here is the disclaimer of the blog http://dreamhead.blogbus.com/logs/13258146.html Why pairing - http://www.shlomifish.org[..]n/opinion-on-the-technion/#why_pair_wise Pair Programming smells - Unequal access - Keyboard domination - Pair marriage - Worker/Rester - Second Computer - "Everyone does their own work" - 90% of work 90% done - People who can't stand to program together - Debates lasting more than 10 minutes without producing new code - Pair-programming smalls - http://agileinaflash.blogspot.com[..]com/2009/02/pair-programming-smells.html http://www.javacodegeeks.com[..]ir-programming-disadvantages-of-100.html http://kfzhang.thoughtworkers.org/2011/04/open-mind-in-pair/ http://spin.atomicobject.com[..]012/08/08/in-praise-of-pair-programming/ http://pragprog.com/magazines/2011-07/pair-programming-benefits Programmer Pairing with a Tester - http://www.satisfice.com/blog/archives/852 Showing how pair programming is better than traditional code review - http://www.petrikainulainen.net[..]ment/design/code-reviews-with-five-whys/
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Sat Jan 11 20:17:16 HKT 2020
From /weblog/business
Using game as training - http://cn.wsj.com/big5/20120514/eoe080717.asp?source=rss , and drawing for communication - http://cn.wsj.com/big5/20120514/eoe082405.asp?source=rss No control, but empower - http://www.michelemmartin.com[..]01/some-thoughts-on-managing-people.html 10 rules of success, not really very insighful ideas but still nice to take a look: http://draginol.joeuser.com/articles.asp?c=1&AID=114319 Another 10 tips for product manager - http://www.brainmates.com.au/?p=109 An interesting example of how people gaming the reward system - http://www.joelonsoftware.com/items/2007/05/10.html Interview of Jeff Bezos and learn about his management style - http://www.fastcompany.com/magazine/85/bezos_4.html Dos and Don'ts for line manager - http://blog.jezhumble.net/?p=29 8 elements of dysfunctional management - http://jchyip.blogspot.com[..]lements-of-dysfunctional-management.html Talk verse Action: All Talk and No Action - http://www.thekua.com[..]ectives-go-wrong-all-talk-and-no-action/ All Action and No Talk - http://www.thekua.com[..]ectives-go-wrong-all-action-and-no-talk/ A suggestion of taking the balance - http://www.scrumalliance.org/articles/61 Discussion about issues of managing remote teams - http://inhumanresources.blogspot.com/2008/01/1.html Team building with the way of "pointy haired boss" ?? - http://manincentral.blogspot.com/2008/02/blog-post_12.html Promote the problem maker to make them better?? Is that work? - http://manincentral.blogspot.com/2008/02/blog-post_16.html May be it is true that problem maker are innovator, give them more work and reward can change their negative performance to more than expected positive performance. The most consistent and intense complaint from team members was that their team leaders were unwilling to confront and resolve problems associated with poor performance by individual team members. http://www.codinghorror.com/blog/archives/001154.html Manage to learn - http://www.ft.com[..]dd-80e9-0000779fd18c.html?nclick_check=1 Suggestion about how to delegate to other, spend time to explain to vision - http://www.kui.name[..]E6%88%96%E8%80%85%E5%B4%A9%E6%BD%B0.html Allocate free time to employee is good for company - http://www.codinghorror.com[..]12/08/today-is-goof-off-at-work-day.html What management should be - http://www.jrothman.com[..]-people-can-you-manage-as-a-manager.html 1. 清楚意識到您的創新意圖 2. 為彈性的工作時間設計一個架構 ３、涉入，然後再把手收回去 4. 測量什麼是有意義的 5. 給予「無實質價值」的報酬 6. 象徵化 7. 不是標準化地複製他人的創新行為 http://www.inside.com.tw/2014/01/15/6-way-innovation-culture http://www.fastcodesign.com[..]6-ways-to-create-a-culture-of-innovation 1. 在公司裡跟別人吐露的心事越少，對你越好。你以為是無傷大雅的閑聊，其實有可能會造成嚴重傷害。把你的猜測和擔憂都埋在心裡吧。 2. 務必管理好和下屬的關系。花時間和公司裡的較低層員工在一起，盡量對他們友好。對電梯操作員禮貌問候，對郵遞員表示感謝，對助理說句友善的話，這些都會得到讚賞。打造名譽要從基層做起。同樣的，碰到不爽的事情，要自己消化情緒，不要在別人面前發泄。 3. 做領導是一份全職工作，職責的時鐘永不停止。每個微小的跡象都會被解讀，你的不耐煩、失望或不安全感都會被那些解讀你的人放大。不應做出隨意、毫無準備的坦白，信息必須經過深思熟慮才能發出。要特別小心書面的東西，尤其是電子郵件──它們永遠都不會消失。 4. 保持聆聽並索取建議。每周至少在公司餐廳吃一次午飯，或者時不時在咖啡機旁逗留，聽聽其他人都在聊些什麼。如果有人想跟你說話，那就沒有理由不聽。如果有人批評，即使你不讚同也要花時間仔細回應。 5. 你覺得很風趣的俏皮話通常並不風趣。你的幽默感很容易被解讀為自傲和笨拙。如果你仍然以為講笑話或引用某個幽默故事對陳述觀點很重要，那麼請先跟你的配偶或信任的朋友演練一遍。幽默是有風險的。千萬不要拿嚴肅的事情開玩笑。 6. 很重要的一點是，保証重要事務的重要性。應該經常解釋你的戰略，可以換個措辭，但要反復強調。 7. 絕不要抱怨和解釋，沒有人會聽。出了差錯就承擔責任。不要把錯誤怪到前幾屆管理層、天氣、運氣不好或競爭對手身上。但也不要露出防御姿態。向前看──除非上級要求你辭職。 8. 信任你的專業顧問，接受他們的專業意見。不要對市場做過多猜測。沒有所謂的完美數據。做出決策，往前走。 9. 謹慎使用“平均”這個詞──平均深度為6英寸河也可能淹死人。欣然接受“平均”，只會獲得虛假的安全感。假設最糟糕的情況會發生，因為通常就是如此。 10. 最後這條是陳詞濫調，但卻是至理真言：絕不要做或說你不希望在報紙頭條看到的事情。和媒體打交道時，不要回答假設性的問題，謹記麥克風永遠不會真正關閉，絕不要同意“私下”談。對一場危機唯一值得做的公開回應是誠實。 http://cn.wsj.com/big5/20140318/eoe074616.asp?source=rss http://online.wsj.com[..]0001424052702303519404579353060931625306 給新手高管的10條建議 - http://cn.wsj.com/big5/20140318/eoe074616.asp?source=rss http://jchyip.blogspot.com[..]/causes-and-solutions-for-bystander.html 以競爭激發員工潛力有其道理，但就我過往所見，鼓催互鬥文化往往淪為非實力較量，最後變成內部互搞小動作放毒箭，對公司產生最嚴重的破壞 － 內耗。 - http://thehousenewsbloggers.net[..]%84%EF%BC%9F%EF%BC%8F%E5%BE%90%E7%B7%A3/ Good developer cannot be good manager? - http://discuss.joelonsoftware.com/default.asp?joel.3.172310 Manager guide in google - https://www.infoq.com/news/2017/02/google-managers Every person is a vector — add them all up, and you know how much progress your company is going to make. - https://thinkgrowth.org[..]me-about-growing-a-business-c2c173f5bff3 The Seven Habits of One Highly Effective Manager of Managers: Things I Learned from Charity Majors - https://honkathon.com/2019-12-19-seven-habits
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Fri Jan 10 20:22:46 HKT 2020
From /weblog/java/concurrency
Even though
private List synchList = Collections.synchronizedList(new LinkedList());
is thread safe, serialize sync List is NOT thread safe for sure. The story is, if you only synchronized the collection, and if we try to get the iterator in concurrent access environment, it will throws currencymodificationexception . For collection is small, may be making defensive copy http://www.javapractices.com/Topic15.cjp is good. Otherwise, in java5, there is concurrency collection. reference: http://jroller.com[..]ntry=collections_synchronizedlist_broken http://jroller.com/page/ctarrington?entry=java_collections_trivia Map operation, include use of FutureTask and putIfAbsent() method from ConcurrentMap. - http://www.javaspecialists.co.za/archive/newsletter.do?issue=125 Other then lterate through the elements, adding and removing elements can also be problem, this article document a few good cases about that - http://rayfd.wordpress.com[..]en-a-synchronized-class-isnt-threadsafe/ Samples of using Queue.drainTo() - http://binkley.blogspot.com[..]rforming-fixed-amounts-of-work-with.html http://tech.puredanger.com/2009/02/28/java-7-transferqueue/ Overview of blockingqueue - http://tutorials.jenkov.com[..]/java-util-concurrent/blockingqueue.html Simple benchmark - http://java-persistence-performance.blogspot.com[..]jvm-performance-part-iii-concurrent.html Multi-thread behaviour - http://vanillajava.blogspot.com[..]hread-safety-issues-with-vector-and.html java.util.concurrent.ConcurrentHashMap VS openhft.collections.SharedHashMap - http://openhft.blogspot.co.uk[..]autilconcurrentconcurrenthashmap-vs.html Why are there so many concurrent queues implementations in Java? - https://vmlens.com/articles/cp/why_so_many_queues/
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Sun Jan 05 20:46:39 HKT 2020
From /weblog/learning
When child lie... http://cn.wsj.com/big5/20120508/lif074336.asp?source=rss How to encourage child - http://blog.sina.com.cn/s/blog_4701280b0102ek51.html http://www.hackerchick.com[..]4/09/fun-ways-to-teach-kids-to-code.html Give Child some duty for good - http://cn.wsj.com/big5/20141229/PHO095935.asp?source=rss 步入青春期的孩子最需要從父母那裡得到什麼? - http://cn.wsj.com/big5/20160824/LIF092635.asp?source=rss 初中男生多煩惱，父母可知道？ - http://cn.wsj.com/big5/20161220/LIF162636.asp?source=rss 研究發現和沒有做家務或者十幾歲才開始做家務的孩子相比，3-4歲就開始做家務的青年成人更有可能和家人及朋友關系融洽、學習優秀、較早實現事業成功及經濟獨立。 - http://cn.wsj.com/big5/20170105/LIF172240.asp?source=rss https://blog.google[..]uter-science-and-computational-thinking/ 專家回答：這不容易，但還是有可能的。人際關系專家兼咨詢專欄作家April Masini說：“家長既要讓孩子繼續保持這種精神氣，又讓他們知道自己行為的後果，要在兩者之間找好平衡點。”她稱，家長可以通過具體的事例，來給孩子講述，在什麼場合、用哪些方法來質疑老師和長輩是OK的，還要解釋這樣做的可能後果。你這樣教育的目的，是讓孩子知道，有時候規則可以打破，邊界可以移動，但行為卻是會帶來風險的。 http://cn.wsj.com/big5/20170222/LIF145613.asp?source=rss 如何培養出真正的成年人 - http://cn.wsj.com/big5/20170526/OPN173543.asp?source=rss 所以，你要做的不是告訴你的孩子冷靜下來，而是應該告訴他們，有機會展現自己的才能，是一件特別幸運的事。<- this is a simple suggestion - http://cn.wsj.com/big5/20170626/LIF172732.asp No gifted child - https://www.theguardian.com[..]such-thing-as-a-gifted-child-einstein-iq 公平地“偏心”。確保每個孩子都得到優待：例如，如果把周末花在女兒的足球比賽上，那就在工作日找些時間關注你兒子的興趣愛好。 - http://cn.wsj.com/big5/20170801/LIF154506.asp?source=rss Science Says the Most Successful Kids Have Parents Who Do These 9 Things - https://www.inc.com[..]ids-who-thrive-science-says-do-thes.html From 0 to 12 months - https://www.webmd.com[..]nting/baby/ss/slideshow-baby-development 但為什麼不在早期教育中教授這些技能呢？ 現任利茲大學商學院的Wandi Bruine de Bruin及其同事已經證明， 決策失誤的討論可以納入高中學生的歷史課程中 。 它不僅提高了後續合理性測試的表現; 它也促進了他們對歷史事實的了解。 - http://www.bbc.com[..]9-has-humanity-reached-peak-intelligence “Part of what is so interesting and surprising about our study is that a simple manipulation — just the way people think about a past event — is changing their conclusions about what they’re doing and whether they’re interested or not,” Niese said. “It’s something people could do on their own if they wanted to and gain these benefits in situations where cultural stereotypes or pre-existing beliefs might be likely to bias their judgment or cloud their memories.” https://www.zmescience.com[..]erception-perspective-enjoyment-8235342/ Instead it is the quality of the conversation that is important. That is, the back and forth, turn-taking nature that requires listening and responding. It’s what Hirsh-Pasek and her long-time collaborator Roberta Golinkoff refer to as a “conversational duet”, because “you can’t sing it alone”. In fact, another study found that if a conversation is interrupted by a phone call, the child does not learn a newly presented word, but will learn it if the conversation is not interrupted. - https://www.bbc.com[..]-that-affects-how-your-babys-brain-grows https://dq.yam.com/post.php?id=11656 They found that children who watched Sesame Street were more likely to be academically on track, and less likely to be held back, than those who didn’t. - https://www.bbc.com[..]ren-find-weird-television-so-mesmerising Instead of repeating the mistakes of previous generations with heavy-handed tactics, let’ understand the psychological source of the problem. Ultimately, parents’ goal should be to help kids learn strategies for coping with overuse on their own so that they do what’s good for them even when we’re not around. By teaching self-regulating habits, promoting intentional gaming, and helping kids find suitable alternatives, parents can help kids find what they are really looking for. - https://getpocket.com[..]mes-it-s-about-unmet-psychological-needs
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