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

Author Question: Human interface design is performed during: A) systems planning and selection. B) systems ... (Read 85 times)

jhjkgdfhk

  • Hero Member
  • *****
  • Posts: 569
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


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

potomatos

  • Sr. Member
  • ****
  • Posts: 338
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


jhjkgdfhk

  • Member
  • Posts: 569
Reply 2 on: Jul 7, 2018
Wow, this really help

Missbam101

  • Member
  • Posts: 341
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

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.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Human tongue Human tongue
Time Line of Human History From Upper Paleolithic Period to the Present Time Line of Human History From Upper Paleolithic Period to the Present
Types of tissue in the human body. Types of tissue in the human body.
Human Ubiquitin Human Ubiquitin
A wide variety of pathogens may live on or in the human body. A wide variety of pathogens may live on or in the human body.
Human X- Linked Traits Human X- Linked Traits
Video: Nucleic acid digestion -small intestine

For a complete list of videos, visit our video library