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

Author Question: When purchasing a software package, a successful definition phase ends with a(n): A) system ... (Read 98 times)

haleyc112

  • Hero Member
  • *****
  • Posts: 600
When purchasing a software package, a successful definition phase ends with a(n):
 
  A) system testing plan.
  B) vendor contract.
  C) system design.
  D) RFP.

Question 2

How do we model components?
 
  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

Hikerman221

  • Sr. Member
  • ****
  • Posts: 346
Answer to Question 1

B

Answer to Question 2

The standard UML icon is a box with two tabs, similar to a plug. Components, however, can also be represented by stereotyped boxes. A component can be modeled both as a black box that hides its internal structure, and as a white box that exposes that structure.
In black-box modeling, we represent the interfaces that the component supports as lines that end in a circle. The outside world can interact with the component only through these interfaces. In turn, if the component requires an external interface in its environment, the requirement is shown as a line ending in a half-circle. This arrangement is often called ball and socket because the interface provided by one component must fit into the socket provided by its client.
In white-box modeling, the internal structure of the component is shown as a diagram inside the stereotyped box that represents the component. The communication between entities inside the box and outside entities takes place through ports, shown as small boxes that are situated on the borders of the component box. An incoming port delegates a provided interface to an object, or another component, inside the component. An outgoing port conveys requests by internal entities to the required interface of an outside component.




haleyc112

  • Member
  • Posts: 600
Reply 2 on: Jul 7, 2018
:D TYSM


matt95

  • Member
  • Posts: 317
Reply 3 on: Yesterday
Gracias!

 

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

For a complete list of videos, visit our video library