Author Question: What does modeling mean and how does it help the development of object-oriented information systems? ... (Read 112 times)

wenmo

  • Hero Member
  • *****
  • Posts: 540
What does modeling mean and how does it help the development of object-oriented information systems?
 
  What will be an ideal response?

Question 2

Which of the following is not a component of an expert system?
 
  A)
 
  a user interface
  B)
 
  an inference engine
  C)
 
  a simulation model
  D)
 
  a knowledge base



hramirez205

  • Sr. Member
  • ****
  • Posts: 345
Answer to Question 1

Without modeling, system analysis and design is distorted into a multi-layered guessing game. A system analyst tries to understand what the client wants, interprets the requirements to the best of his abilities, and communicates his interpretations to the programmer. The programmer, in turn, uses his judgment to understand the analyst and build the actual system. The result is like the telephone game that children play: the first child starts by whispering a phrase or a sentence to the second child who, in turn, transmits the message to the third. By the time that the last child in line receives the sentence and utters it loudly, the message has been distorted beyond recognition.

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

For a complete list of videos, visit our video library