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 59 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
:D TYSM

scottmt

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Human Population Blasts Off Human Population Blasts Off
Organization of the human body. Organization of the human body.
Nutrients Are Transported through the Circulatory and Lymphatic Systems Water-soluble nutrients Nutrients Are Transported through the Circulatory and Lymphatic Systems Water-soluble nutrients
Human reproduction Human reproduction
Sensory systems and Endocrine system Sensory systems and Endocrine system
Human Development (Full Term) Human Development (Full Term)
Video: Stroke volume - afterload definition & hypertension

For a complete list of videos, visit our video library