Assignment NO
#3
Solution;
a.
What system analysis technique is most suitable
to present the above process in a pictorial form to show the sequences of
activities, decisions, and results?
Ans; Data Flow Diagram (DFD) is a
graphical representation of the flow of data through an information system is
most suitable to represent the above process in pictorial form to show the
sequence of activities, decisions and results.
- Enlist
all the components, symbols, and meanings used in above technique.
Question 2
Part a Solution:
The
word polymorphism means having many forms. In simple words, we can
define polymorphism as the ability of a message to be displayed in
more than one form. Real life example of polymorphism: A person
at the same time can have different characteristic. Like a man at the same time
is a father, a husband, an employee.
In
object-oriented programming, polymorphism (from the Greek meaning
"having multiple forms") is the characteristic of being able to
assign a different meaning or usage to something in different contexts -
specifically, to allow an entity such as a variable, a function, or an object
to have more than one form.
Encapsulation
Encapsulation means information hiding. For instance, when
the Play Button is pressed, the tape is played. However the actual process of
how the tape is played is not visible. Another example can be given of banking
software. The banking software contains an option of computation of profit,
when the option is activated the amount is computed as and when required,
however, the actual steps when performed remain invisible to the user.
Polymorphism
Following example will help understand the concept in a
better
Complete Solution in File . Download from here.
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Manner;
Hence based on the example given above, the concept can be
defined. Polymorphism is a derived from Greek language meaning "having
multiple forms"). Polymorphism is the characteristic of being able to
assign a different meaning or usage to something in different contexts -
specifically, to allow an entity such as a variable, a method, or an object to
have more than one form.
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