Author Question: Reuse can apply to any ________ that is required in software development. A) product B) ... (Read 28 times)

Jramos095

  • Hero Member
  • *****
  • Posts: 528
Reuse can apply to any ________ that is required in software development.
 
  A) product
  B) experience
  C) expertise
  D) all of the above

Question 2

Describe basic object-oriented concepts in the context of structural modeling.
 
  What will be an ideal response?



s.meritte

  • Sr. Member
  • ****
  • Posts: 306
Answer to Question 1

D

Answer to Question 2

Classes and objects are black boxes: their outside is visible while their inside is not. This characteristic is achieved through encapsulation, the enclosing of data and processes within one single unit. Information hiding, which follows encapsulation, ensures that the inner entities and the workings of the object are concealed (and safe) from outside entities.
Encapsulation results in two spaces: public (the outside) and private (the inside). What the object offers to the public is called its interface. The interface is both the services that an object provides and the form that these services take. Since, in an information system, the only reason for an object's existence is the services that it offers to other entities, the interface of the object is characterized as a contract or a binding agreement.
Under this contract, an object assumes certain responsibilities. The responsibilities fall into two categories: what the object knows, or attributes, and what the object does, or operations. A class defines the responsibilities and its instances (the objects) carry them out.
Even though an object is a building block of an information system, it might be composed of other objects. Such objects are called composite objects. A collection object is a composite object that is made up of objects instantiated from the same class. Composite objects may belong to a hierarchy: a component of a composite object may itself be a composite object.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

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.

For a complete list of videos, visit our video library