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Question
What is an USECASE? Why it is needed?
 Question Submitted By :: Guest
I also faced this Question!!     Rank Answer Posted By  
 
  Re: What is an USECASE? Why it is needed?
Answer
# 1
It is useful to represent the complete and specific 
funtionality that an actor(USER) is desirous of.
This functionality is shown by the USECASE model with the 
help of Diagrams, i.e. Sequence Diagram and Colloboration 
Diagram. It shows the various states of a work flow(Project 
or Program).
 
Is This Answer Correct ?    7 Yes 0 No
Surendra Singh (suraj)
 
  Re: What is an USECASE? Why it is needed?
Answer
# 2
Diagram which represents the requiremnets(usecase) of the 
user(actor). its needed to represent the dynamic model at 
the analysis stage to represent the graphical view of the 
requiremnetal behaviour.
 
Is This Answer Correct ?    4 Yes 1 No
Guest
 
 
 
  Re: What is an USECASE? Why it is needed?
Answer
# 3
an usecase is a sequence of actions which can be done by a 
actor.
 
Is This Answer Correct ?    3 Yes 1 No
Sravan
 
  Re: What is an USECASE? Why it is needed?
Answer
# 4
use case is a interaction between actor(USER) and System
(application), for single system there many use cases 
depends on Requirements.
 
Is This Answer Correct ?    6 Yes 0 No
Shrikant
 
  Re: What is an USECASE? Why it is needed?
Answer
# 5
use case represents diagrams. there are two types of use 
cases BUC-> business use case and SUC-> system use case
In BUC we represent pictures related to Domain and SUC we 
represents shapes like elipse,arrows etc. this is the very 
first stage of design where we find out actors and related 
activity. actor performs happy activity
 
Is This Answer Correct ?    3 Yes 0 No
Narendra Vyas
 
  Re: What is an USECASE? Why it is needed?
Answer
# 6
A use case is a methodology used in system analysis to 
identify, clarify, and organize system requirements. The 
use case is made up of a set of possible sequences of 
interactions between systems and users in a particular 
environment and related to a particular goal.
 
Is This Answer Correct ?    2 Yes 0 No
Ashok
 
  Re: What is an USECASE? Why it is needed?
Answer
# 7
Types of UML Diagrams:
1. Use case Diagram
2.	State Diagram
3.	Class diagram,
4.	Sequence diagram
5.	Collaboration diagram


 Use case: A set of scenarios that describing an interaction
between a user and a system, including alternatives.

Use case diagram-Uses: 
 Used for describing a set of user scenarios
 Mainly used for capturing user requirements
 Work like a contract between end user and software developers

Use case diagram-Core components:
  a)	Actor b) Use case  c) System boundry

Use case diagram Relation's:
a)Association B) Generalization c) Include d) extend
 
Is This Answer Correct ?    1 Yes 0 No
Zerozero
 

 
 
 
Other OOAD Interview Questions
 
  Question Asked @ Answers
 
Comment: C++ "includes" behavior and java "imports"  1
Can link and Association applied interchangeably?  2
Why does the function arguments are called as "signatures"?  1
Why should project managers complete hard problems first in an OOSAD project?  2
What are the tools you used for OOAD? Protech3
Explian following terms: Constraint Rules, Design by contract. Protech1
Difference: 'uses', 'extends', 'includes' Protech4
What is association? Protech2
Is class an Object? Is object a class? Protech3
Difference: Sequence Diagrams, Collaboration Diagrams ? Protech1
Where shall I go for Package Diagram? Protech1
Every object has : state, behavior and identity - explain Protech2
USECASE is an implementation independent notation. How will the designer give the implementation details of a particular USECASE to the programmer?  2
What are the good practices to use while designing for reuse? Protech1
Can you think of some nice examples where *multiple* actors are associated with a use case ? Protech1
what is meant by "method-wars"?  2
What do you mean by Realization? Protech1
Difference Between Attribute and Association. Protech2
What is SRD(System Requirement document), FSD (Functional Specification Document), RSD (Requiremnet specific document)? If these are different document wat are there contents? HP1
Is class an Object? Is object a class?  10
 
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