Author Question: Human interface design is performed during: A) systems planning and selection. B) systems ... (Read 84 times)

jhjkgdfhk · **on:** Jul 7, 2018

Human interface design is performed during:

A) systems planning and selection.
B) systems analysis.
C) systems design.
D) systems implementation and operation.
E) requirements structuring.

Question 2

The value of a key attribute in a relation must uniquely identify every row in the relation.

Indicate whether the statement is true or false

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

Answer to Question 1

C
Explanation: C) Both designing the human interface and designing databases are part of the systems design phase of SDLC.
CL

Answer to Question 2

TRUE
Explanation: This is because in a relation, each row must be unique. This primary key ensures that each row is unique.
CL