A PM wanted to show management, visually, how quality controls were affecting processes. The best tool to accomplish this is（）

单项选择题（）operate by distributing a workload evenly over multiple back end nodes. Typically the cluster will be configured with multiple redundant load-balancing front ends.

A．High-availability clusters
B．Load-balancing clusters
C．Grid computing
D．Cloud Computing

单项选择题In software engineering and systems engineering,（）is a description of a system's behavior as it responds to a request that originates from outside of that system.

A．black box
B．business rule
C．use case
D．traceability matrix

单项选择题若某小型信息系统开发团队由4人组成，则其沟通渠道数为（）。

A．12
B．10
C．8
D．6

单项选择题软件著作权的客体是指（）。

A．公民、法人或其他组织
B．计算机程序及算法
C．计算机程序及有关文档
D．软件著作权权利人

单项选择题企业质量体系主要是满足（）的需要。

A．质量管理
B．认证
C．顾客
D．认证与顾客