This topic contains a solution. Click here to go to the answer

Author Question: Apply the concept of polymorphism to Person/ Work or another object/operation of your choice. ... (Read 56 times)

Brittanyd9008

  • Hero Member
  • *****
  • Posts: 500
Apply the concept of polymorphism to Person/ Work or another object/operation of your choice.
 
  What will be an ideal response?

Question 2

Compare and contrast the use case diagram and an activity diagram.
 
  What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

rnehls

  • Sr. Member
  • ****
  • Posts: 313
Answer to Question 1

Person is a superclass with a Work responsibility. Person can have numerous subclasses, including Doctor, Mechanic, and Cook. Instances of all subclasses must work, but the work that they actually do is very different from each other: when objects belonging to Person subclasses are told to work, the Doctor treats patients, while the Mechanic fixes cars and the Cook prepares food. In other words, the same message, Work, is implemented differently depending on the nature of the object, not the nature of the message.

Answer to Question 2

A use case diagram is a visual meta-model: it does not model the use case itself, but the associations between actors, use cases, and the system. It also depicts extend and include relationships between use cases and provides us with a visual table of contents. An activity diagram is a general-purpose diagram for visualizing and verifying a logical flow. For a use case with a complicated alternate flow, an activity diagram is a very helpful tool. Its simplicity facilitates communication between development stakeholders.




Brittanyd9008

  • Member
  • Posts: 500
Reply 2 on: Jul 7, 2018
Thanks for the timely response, appreciate it


carojassy25

  • Member
  • Posts: 299
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

For a complete list of videos, visit our video library