Begun in 1987 to mark the occasion of the world youth games, and to this day unfinished (apparently for financial reasons), the Ryugyong Hotel is a pyramid 330 metres high (9th tallest bldg in world), 105 floors, 3000 rooms, $750 million (which is about 2% of North Korea's GDP).

Approach for assessing and developing maturity in knowledge management

Quantity, Measurement, Observation, 架构,分析设计,分析模式,度量,测绘,Observation,Measurement

分析模式 - 库存和账务模式

the difference between prototype property and [[prototype]] which constructs the chain of prorotype