When building an information system, we first create a ________ ...

[captainjonesify]

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?

[cpetit11]

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]

Gracias!

[T4T]

Excellent