4 Pilars of Object Oriented Design

Complex system is one where we do not know what will be the outcome or final result of the system by

Object Oriental Analysis Design is a hands on approach used to model and create systems as a group of interacting objects. The term “Object”, describes a form of entity or “thing” of concern. Objects are typically modeled after real world entities or concepts. For the business analyst, examples of objects may range from; invoice, product, contract, etc. Objects usually contain attributes that can be set to specific values. With Object Oriented Approach to system design, it tries to lessen the impact of problems by combining related data and functions into the same module. Objects In the real world can be characterized by two things; data and behavior. For example, a television is an object and possess data in the sense that it is tuned to a particular channel, the scan rate is set to a certain value, the contrast and brightness is a particular value and so on. The television object can also "do" things. The television can switch on and off, the channel can be changed, and so on. Below is a graphical representation of a single object and its characteristics:

I think it is a problem because the people who are part of the upper class are making the policies for the lower class. This is a problem because they do not understand what the lower class goes through and they do not understand what their circumstances are. The upper class tends to see the lower class as “lazy,” but in reality determinism caused them to be in the situation they are in. Although a lot of the upper class was born into their wealth, many people are not that fortunate. People do not get to choose what they want to be born into, they get born into whatever their family circumstances are, whether poor or rich. On page 181 in Class in America, two of three different life styles really stood out to me. Harold Browning was born into a rich family. As a child he went to an exclusive private school, got tutoring, and had many privileges. He went to an Ivy League school, got a job in his family's company then went on to higher positions and ended up making $324,000 annually. On the other hand, Cheryl Mitchell went to a public school, received no tutoring, and went on to pursue higher education but dropped out due to financial issues. Her annual salary is $16,850. Studies have shown that

This ultimately led a complex path to class stratification historically, socially and culturally. (Lott) With that being said, he continues to dig deeper and specify that class resonates with the implications of value, quality respectability and religious virtue. I believe class should entail all the

A class is like a cookie-cutter in that it has the power to create multiple items that are alike in some ways: they all have the same number and type of fields, while their values can differ. You can compare this to all cookies having the same shape, but it is unclear how the differences between individual cookies map to the differences between objects that are class-mates; in my mind, two Cartesian coordinates with different X and Y values are much more different than similar, certainly much less alike than two cookies with the

The existence of classes between people is lamentable, but it does exist, and it sews discord between them. Perhaps the

classes are perhaps not as clear as they used to be. But it is just as

what. Personally, I think that all this social structure of classes is a bit stereotypical because none of these

The relationship between these two classes is of master and slave, and so it is a poor relationship. Poor relationships are a main cause of lack of progress.

This class will have nothing to do with the other two. There are no extra things attached to this marriage, just a man and a woman having children and paying everything together. The third class, male-male marriages, will be the worst off. The marriages between two men will be the maritial underclass. Most of these men will become un-consenting "fathers" through

DIT measures the effect of an ancestor class over the class for which the metrics is being measured. In DIT, the deeper the class is in hierarchy, the greater the number of methods it is likely to inherit and greater the potential reuse of inherited methods.

General system theory focuses on the interaction or the relationships between components that contribute to the system as a whole.

The term cohesion is used to indicate the degree to which a class has a single, well-focused purpose. Cohesion can be applied to classes and methods which should display a high degree of cohesion.

Abstract- A lecture given by Guy L. Steele in 1998 at “OOPSLA 13th ACM SIGPLAN conference on Object-oriented programming” focuses mainly on the nature and growth of programming-language design. The speaker started his lecture by giving insights into the use and nature of programming-languages. He started with examples of English language comparing with a programming-language. He talked about the set of constraints showing one may use any word of single syllable. The speaker also demonstrates it can be confining to expressing yourself when you don’t have access to an extensive vocabulary. If someone wishes to use the longer words, one must define them using only such words have one syllable Guy Steele shows with his talk is that small language restricts the expressiveness of thoughts. You must define a lot of new words to express your thoughts and ideas clearly. .He gives many more interesting points how languages should be grown. He discusses that how programmer needs to enhance the ability to expand the vocabularies of languages that feels weakened. The speaker ends his lecture after explaining the main goal of programming language design by giving various examples. [1][2][5]

Object-oriented (OO) technology in software design and implementation has gained popularity for cost reduction and quality improvement. Research the concept of OO. In 10 pages ( double spaced, 12 point Times Roman font with 1 inch margins ), explain the evolution of OO, how it differs from procedural programming, why it is more cost effective and how it can improve software quality. The research project will be submitted through Turnitin