IT 210 CheckPoint Interfaces and Communication Messages

Price: $10 USD

Question description

Understanding object-oriented methodologies is often difficult. You already understand that object-oriented analysis and design emulates the way human beings tend to think and conceptualize problems in the everyday world. With a little practice, object-oriented programming will become second nature to you.

As an example, consider a typical house in which there are several bedrooms, a kitchen, and a laundry room—each with a distinct function. You sleep in the bedroom, you wash clothes in the laundry room, and you cook in the kitchen. Each room encapsulates all the items needed to complete the necessary tasks.

You do not have an oven in the laundry room or a washing machine in the kitchen. However, when you do the laundry, you do not just add clothes to the washer and wait in the laundry room; once the machine has started, you may go into the kitchen and start cooking dinner. But how do you know when to go back to check the laundry? When the washer buzzer sounds, a message is sent to alert you to go back into the laundry room to put in a new load. While you are folding clothes in the laundry room, the oven timer may ring to inform you that the meat loaf is done.

What you have is a set of well-defined components: Each provides a single service to communicate with the other components using simple messages when something needs to be done. If you consider a kitchen, you see it is also composed of several, smaller components, including the oven, refrigerator, and microwave. Top-level objectsare composed of smaller components that do the actual work. This perspective is a very natural way of looking at our world, and one with which we are all familiar. We do the same thing in object-oriented programming:

·  Identify components that perform a distinct service

·  Encapsulate all the items in the component necessary to get the job done

·  Identify the messages that need to be provided to the other components

Although the details can be quite complex, these details are the basic principles of object-oriented programming.

Consider the microwave oven in your kitchen, using the object-oriented thinking described above.

Create a table with the following four columns and use the following headings: Top-Level Objects, Communicates With, Incoming Messages, and Outgoing Messages.

·  Create rows in the table to fill in the columns for each of the Top-Level Objects found on a microwave.

·  Also in the table explainsome of the graphical user interfaces (GUIs) and communications messages that occur during the operation of a microwave.

Describe some of the advantages of having a componentized system. For example, what happens if the microwave breaks?

Tutor Answer

(Top Tutor) Daniel C.
School: Boston College
Studypool has helped 1,244,100 students
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1819 tutors are online

Related Programming questions


Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors