Is the technology that appears to emulate human performancetypicaliy by learning,coming to its own conclusions, appearing to understandcomplex content, engaging in natural dialogs with people, enhancing humancognittive performance (also known as cognittive computing) or replacing peopleon execution ofnonroutine tasks().

Is a decentralized, distributed and public digital ledger that is used to record transactions across many computers so that the record cannot be alterred retroactively without the alteration of all subsequent blocks and the collusion ?of the network().

Estimate activity durations is the processof estimating the number of work periods to complete indivities with estimatedresources . the tools and technques is not including（）.

The process of translating the qualitymangement plan into executable quality activities that incorporate theorganization's quality policies into the project.

阅读以下关于需求建模的叙述，在答题纸上回答问题1至问题3。

试题二(25分)