15)One or the following is not one of the characteristic of servixe texhnologies:

1. Quatity is directly measured
2. Intangible output
3. production and consumption take place simultaneously
4. Quality is percieved and difficult and didficult to measure

16) The prscess of examining large data set to uncover hidden patterns corrolations and other useful information to make better decision is known as:

A) Artiticial intelligence

B)business intelligence

C)internet of things

D) big data analytics