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PROGRAM:
BCA (REVISED 2007)
SEMESTER:
6TH SEM
SUBJECT
CODE & NAME: BC0057 – OBJECT ORIENTED ANALYSIS AND DESIGN
CREDIT:
4
BK
ID: B1010
MAX.
MARKS: 60
Q.1: Why is object oriented system
important? State 2 orthogonal views of the software.
ANS:
Object oriented systems are easier
to adapt to changing requirements,easier to maintain, more robust, and promote
greater design and codereuse.
·
Higher level of abstraction:
Q.2: Explain about Encapsulation
& information hiding and Class hierarchy
ANS:
Encapsulation
and information hiding:
Information hiding is the principle of concealing
the internal data andprocedures of an object and providing an interface to each
object insuch a way as to reveal as little as possible about its inner
workings.
Q.3: Describe Rum Baugh et al.’s
Object Modeling Technique
ANS:
The Object Modeling Technique
(OMT) presented by Jim Rum Baugh andhis co-workers describes a method for the
analysis, design, andimplementation of a system using an object-oriented
technique. OMT is afast, intuitive approach for identifying and modeling all
the objects making upa system. Details such
Q.4:
Write short notes on: (i) Sequence
Diagram (ii) Collaboration Diagram
ANS:
(i) Sequence Diagram:
A
sequence diagram is an interaction diagram that emphasizes thetime ordering of
messages. A sequence
diagram shows a set of objectsand the messages sent and received by those
objects. The objects aretypically named or anonymous instances of classes, but
may also representinstances of other things, such as
Q.5: Explain the 3 steps in
extracting Entity Classes with a flowchart.
ANS:
Entity class extraction consists
of three steps that are carried out iteratively and incrementally:
·
Functional
Modeling.
Present scenarios of all the use cases (ascenario is an instance of a use
Q.6: What
are the reasons that the operations not added during the analysis workflow, but
rather during the design workflow? Explain.
ANS:
·
First,
as explained, as a consequence of the iterative nature of the Unified Process,
it is unwise to
Get fully solved assignment. Buy online from website
online store
or
plz drop a mail with your sub code
we will revert you within 2-3 hour or immediate
Charges rs
125/subject and rs 375/semester only.
if urgent then call us
on 08791490301, 08273413412
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