Author Question: Business processes can influence the design of information systems. Indicate whether the ... (Read 69 times)

hbsimmons88 · **on:** Jul 7, 2018

Business processes can influence the design of information systems.

Indicate whether the statement is true or false

Question 2

For any relation R, if, for every valid instance of A, that value of A uniquely determines the value of B:

A) then a primary dependency exists in the relation.
B) then A is said to be functionally dependent on B.
C) then B is said to be functionally dependent on A.
D) then A and B are candidate keys for the relation.
E) None of the above are true.

cloudre37 · **Reply #1 on:** Jul 7, 2018

Answer to Question 1

TRUE

Answer to Question 2

C
Explanation: C) For instance, if A is your student ID and B is your last name, then B is functionally dependent on A. In other words, if I know your student ID, I can determine your last name.
CL