Author Question: One of the key emphases of eXtreme Programming is to use a three-person programming team. ... (Read 105 times)

urbanoutfitters

  • Hero Member
  • *****
  • Posts: 530
One of the key emphases of eXtreme Programming is to use a three-person programming team.
 
  Indicate whether the statement is true or false

Question 2

What are the guidelines for drawing DFDs?
 
  What will be an ideal response?


mcomstock09

  • Sr. Member
  • ****
  • Posts: 377
Answer to Question 1

FALSE

Answer to Question 2

These guidelines include: (1 ) completeness, (2 ) consistency, (3 ) timing considerations, (4 ) the iterative nature of drawing DFDs, and (5 ) primitive DFDs.
Completeness: The concept of DFD completeness refers to whether you have included in your DFDs all of the components necessary for the system you are modeling. If your DFD contains data flows that do not lead anywhere or data stores, processes, or external entities that are not connected to anything else, your DFD is not complete.
DFD consistency refers to whether or not the depiction of the system shown at one level of a nested set of DFDs is compatible with the depictions of the system shown at other levels.
Timing: On a given DFD, there is no indication of whether a data flow occurs constantly in real time, once per week, or once per year. There is also no indication of when a system would run.
Iterative DFD development recognizes that requirements determination and requirements structuring are interacting, not sequential, subphases of the analysis phase of the SDLC.
Primitive DFD: One of the more difficult decisions you need to make when drawing DFDs is when to stop decomposing processes. One rule is to stop drawing when you have reached the lowest logical level.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

For a complete list of videos, visit our video library