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PROGRAM: MCA (REVISED FALL 2012)
SEMESTER: FIRST
SUBJECT CODE & NAME: MCA1040- SYSTEM ANALYSIS AND DESIGN
CREDIT: 4
BK ID: B1647
MAX. MARKS:
60
Q.1:
List different types of Systems. Compare Physical or abstract systems and Open
or closed systems.
ANS:
There are different
types of system. These can be categorised in many ways.
·
Physical
or abstract systems
·
Open
or closed systems
Q.2:
Define attributes. What are the two attribute classifications? Explain about
properties and characteristics.
ANS:
Attributes:
The term ‘Attributes’
stands for functional or physical traits of a system.System attributes are
considered as the supposed qualities of the system.Some examples of attributes
are temperature, location, state,
Q.3:
Explain the concept of Analysis and Design in system development life cycle.
ANS:
System development is
quite a challenging and difficult task. In developing abig integrated system,
like MIS, a lot of people are involved and severalmonths or even years are
devoted for completion. But, a small autonomousapplication, like payroll, can be
generated in a number of weeks or monthsby a single
Q.4: Write short notes on:
a. Data Dictionary
b. Data Element
c. Data Structure
d. Data Store
e. Data Flow
ANS:
Data Dictionary:
A catalogue comprising
all data elements, data structures and processes depicted in logical DFDs is
Q.5:
What are the different types of methods used for the
training of operators and users? Discuss.
ANS:
There are different
methods for organising training of operators and users. Most significant among
them are as follows:
Q.6:Explain the concept of inheritance and polymorphism with
example.
ANS:
Concept of inheritance:
Inheritance is defined
as a method in which the subclass inherits the properties and attributes of a
class. In the process of inheritance the subclasses can be refined by adding
some new attributes and functionality.
A lot of repetitive
coding is there when numerous different classes supporting the same protocol
are executed. Inheritance permits the sharing of the implementation of
operations to most of the object-oriented systems instead of duplicate code in
different classes. By means of inheritance, one class can be
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