Why Agile Project Management?

I learnt extreme programming in my graduate study. The course name was software engineering and the students grouped together to finish an academic project over the semester in an agile, or extreme programming(then name) manner. Looking back, I have to admit that I didn’t really learn the secret of agile.

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Project Management: Agile V.S. Waterfall

Scrum is an widely used agile process, it breaks down the project into 2-4 weeks intervals called Scrum. While each scrum is a small project that each should produce a working incremental of software. At each end of the sprint, the team will review the deliveries and do a retrospective to the past sprint.

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消费函数

经济学中关于消费函数的演进过程使我想起物理学定律被不断被修正的过程:初始提出的模型或者假设被发现不能使用与新的领域,于是新的模型被提出,更有想要常识使用同一个模型解释多重不同的情况,比如宏观和微观,经典和量子。经济学建模的过程与此相似,都是在不断找出真正影响结果的因素,修正所使用的模型的过程。在经济学的学习中我也逐渐发现数学的重要性,为了可以进行量化讨论和研究,数学模型是必不可少的。

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