4.1. What is a subclass? When is a subclass needed in data modeling? A subclass is needed in data modeling, because it is the easiest way to explain the inheritance relationship between two classes. A subclass is a class that was originated from a new class. 4.2. Define the following terms: superclass of a subclass, superclass/subclass relationship, IS-A relationship, specialization, generalization, category, specific (local) attributes, and specific relationships. Superclass of a subclass – a class’s directs ancestor and all of the ascendant classes. Superclass/subclass relationship – a subclass comes from a superclass. A subclass and superclass go hand in hand. IS-A relationship – the relationship between a subclass and its superclass Specialization – process of classifying a class of objects into more specialized …show more content…
What is the difference between a specialization hierarchy and a specialization lattice? The difference is that in a specialization lattice a subclass can be a subclass in more than one class, whereas in hierarchy has that constraint. 4.8. What is the difference between specialization and generalization? Why do we not display this difference in schema diagrams? Generalization is process of extracting common characteristics from two or more classes and combining them into a generalized superclass. A Specialization is the reverse process of Generalization means creating new sub classes from an existing class 4.9. How does a category differ from a regular shared subclass? What is a category used for? Illustrate your answer with examples. A category differs from a regulated shared subclass because it has two or more super classes that represent entity types. 4.10. For each of the following UML terms (see Sections 3.8 and 4.6), discuss the corresponding term in the EER model, if any: object, class, association, aggregation, generalization, multiplicity, attributes, discriminator, link, link attribute, reflexive association, and qualified
It is really interesting to break down the separate classes and find their similar details and their different details. Obviously the differences are greater in number and some of them fairly extreme. But that is to be expected.
How is the codification structured? Include as discussion of the topic, subtopics, sections and subsections in your answer.
The diversity among people is widely spread throughout the world. One can be grouped into various ways. People come in all shapes, sizes, colors, personalities, genders, and interests. LIfe would be hectic for someone to try and categorize people in every way possible. At least people are not the only thing impossible to fully separate. Animals and plants can also be placed into different categories. People can be classified into three categories: Leaders, Followers, and Independents.
In their most basic and natural settings, these two concepts can simply be defined as such:
Class can be defined as a way society separates people into groups based on their socioeconomic
can also be vital in understanding why students may act the way they do. Student development
Both words and their subsequent meanings, as has been suggested previously, reflect notions of the hierarchy and stratification, or the division, of groups of people within the social sphere. Therefore, both expressions can be discussed simultaneously due to their reliance on one another. This is not to suggest that `power' is identical to `class', but simply that the very fact classes in the social system exist is, some suggest, purely related to power.
Johnson, R. and Foote, B. (1988) “Designing reusable classes”. In: Journal Of Object-Oriented Programming, v.1, n. 2, p. 22-35, Jun./Jul.
According to our text (page 221) stereotyping is assuming that all members of a group have similar
One of these is Social categorization. Based on the name it is very self explanatory, with the social categorization there is the need to divide, categorizing individuals into groups (in and out groups).
knowledge?” He later goes on to say that “corresponding to these four [sub-] divisions [of
Redmund has synthesised a brief comprehensive definition to include all the the above in such a way:
Many have scrutinized and compared the dissimilarities and similarities of Aristotle's doctrine of categories and Plato's theory of forms. The observations found are of an interesting nature.
"Since the superego goes back to the influence of parents, educators and so on, we learn still more of it's significance if we turn to those who are its sources." (Ricoeur P, 1970, p186) The superego is not created when we are born rather we are born with the superego and it develops over the course of our life as new rules and regulations are brought to light. "A child's superego is in fact constructed on the model not of its parents but of its parents' superego; the contents which fill it are the same and it becomes the vehicle of tradition and of all the time-resisting judgements of value which have propagated themselves in this manner from generation to generation." (Ricoeur P, 1970, p187) Therefore the superego is developed, maintained and updated continuously over the period of our life and is then passed on or inherited by our children.
are the ones who developed the first classification scheme. During the 4th century, Aristotle grouped animals according to where they lived. On the other hand, Theophrastus grouped plants according to their stem structure. As time passes by, the ways of identification flourished. Not only did the classification system affect the branch of biology, but it also affected the entertainment industry of the modern world. Genre is an example of the categorization for modern art and entertainment. Genres, such as horror, romance, drama, comedy, and science