This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: When building an information system, we first create a ________ model of the system, from which we ... (Read 152 times)

captainjonesify

  • Hero Member
  • *****
  • Posts: 543
on: Jul 7, 2018
When building an information system, we first create a ________ model of the system, from which we will design the product,
 
  A) physical
  B) conceptual
  C) visionary
  D) stable

Question 2

Explain look up tables and their functions.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cpetit11

  • Sr. Member
  • ****
  • Posts: 321
Reply #1 on: Jul 7, 2018
Answer to Question 1

B

Answer to Question 2

A lookup table defines and, often, describes a set of valid values for a given attribute. Rows in a lookup table do not correspond to entities (or objects), but represent a range of values for a single attribute in another table, enforced through a foreign key. Lookup tables also can provide descriptions for categorical data items that are meaningless without descriptions. Optionally, they can be maintained by users.


captainjonesify

  • Member
  • Posts: 543
Reply 2 on: Jul 7, 2018
:D TYSM

brbarasa

  • Member
  • Posts: 308
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

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.

The lymphatic system. Lymphatic vessels, major lymph nodes, and lymphatic organs. The direction of l The lymphatic system. Lymphatic vessels, major lymph nodes, and lymphatic organs. The direction of l
brain model brain model
Disorders of or Associated with the Lymphatic System Disorders of or Associated with the Lymphatic System
The location of the major limbic system structures. In general, they are arrayed near the midline in ... The location of the major limbic system structures. In general, they are arrayed near the midline in ...
Subduction and Mountain Building Subduction and Mountain Building
Model for ecosystems on land Model for ecosystems on land
Video: Global warming and its effect on climate change

For a complete list of videos, visit our video library