The Institution of Engineers,India 2006 Diploma Electronics and Communication ANALYSIS AND DESIGN OF INFORMATION SYSTEMS - - Question Paper

Code: DC-06                 Subject: ANALYSIS AND DESIGN OF INFORMATION SYSTEMS

Time: 3 Hours                                                    June 2006                                                  Max. Marks: 100

NOTE: There are 9 Questions in all.

      Question 1 is compulsory and carries 20 marks. Answer to Q. 1. must be written in the space provided for it in the answer book supplied and nowhere else.

      Out of the remaining EIGHT Questions answer any FIVE Questions. Each question carries 16 marks.

      Any required data not explicitly given, may be suitably assumed and stated.

Q.1       Choose the correct or best alternative in the following:                                         (2x10)

a.       A decision table facilitates conditions to be related to  

                   (A)  actions.                                        (B)  programs.

(C)    tables.                                         (D)  operation.

b.      Which of the following is not a part of a Data Flow Diagram?

(A)    disk storage                                  (B)  arrow

(C)  data store                                     (D)  process represented by a bubble

             c.   System study involves

(A)     study of an existing system.         

(B)     documenting the existing system.

(C)     identifying current deficiencies and establishing new goals.     

(D)     all of the above.

             d.   Changes made periodically to a system, after its implementation, is know as system

(A)    analysis.                                      (B)  design.

(C)  development.                               (D)  maintenance.  

             e.   The first step in Systems Development Life Cycle is

(A)     database design.                           (B)  system design.

(C)  preliminary investigation                (D)  graphical user interface.

                           and analysis.                               

             f.    Where one has to process all the data records in a file, the best file organization is

(A)     induced.                                       (B) sequential.

(C)  direct access.                               (D  random access.

             g.   Which of the following statements is true?

(A)     Entity Relationship Diagrams are used to design files. 

(B)     Systems Overview can be prescribed by Data Flow Diagrams.

(C)     Phases, in a systems life cycle are fixed and invariant. 

(D)    Only a programmer can conduct a system study.

             h.   An appraisal, of a systems performance after it has been installed, is called

(A)    system planning.                           (B)  system review.

(C)  system maintenance.                     (D)  batch processing.

             i.    Which of the following is a function of the process step of data processing?

(A)   Protect                                         (B)  Index

(C) Retrieval                                        (D)  Update

             j.    Checking the quality of software in both simulated and live environments in known as

(A)    checking.                                      (B)  usability.

(C)  debugging.                                    (D)  validation.      

Answer any FIVE Questions out of EIGHT Questions.

Each question carries 16 marks.

  Q.2     a.   Define a system and explain the following characteristics of a system:                      

(i)                  Interdependence.

(ii)                Interaction.                                                                        (2+3+3)

             b.   Explain the following types of systems:

                   (i)  Functional systems.

                   (ii)  Integrated systems.                                                                                  (3+3)

             c.   What is Operational information?                                                                        (2)

  Q.3     a.   Explain the various stages of system development life cycle.                                (8)

             b.   List and describe the three goal-oriented perspectives for any information systems.             (8)

  Q.4     a.   Explain the role of a system analyst as a Change Agent.                                      (5)

             b.   Explain the difference between structured and unstructured interviewing.  Give an example of each.                                                            (6)

             c.   Explain different categories of information.                                                          (5)

  Q.5     a.   Define and explain the following:

(i)                  Data flow diagrams.

(ii)                Attributes.

(iii)               Entities.                                                                             (4+2+2)

             b.   Construct an E-R diagram for a bank which has customers who can borrow loans.  One customer can borrow many loans.  Clearly specify the primary keys and cardinality in the E-R diagram.    (8)

  Q.6     a.   What considerations are involved in feasibility analysis?  Differentiate between technical feasibility and behavioural feasibility.                          (8)

             b.   List few desirable features of a good design.                                                       (8)

  Q.7     a.   Explain the major development activities during structured design.                       (8)   

             b.   What is implementation?  How does it differ from conversion?                            (8)

  Q.8     a.   How can the cost of maintenance be reduced?                                                    (5)

             b   Differentiate between entity, interface and control objects.                                    (5)

             c.   Explain the importance of object reuse during system design.                               (6)

  Q.9           Write short notes on the following:                                                                         

(i)                  Input design process.

(ii)                Activities involved in object oriented design.

(iii)               Object responsibility.                                                         (6+5+5)