CS-05 : ELEMENTS OF SYSTEM ANALYSIS & DESIGN JAN 2001

1.	(a).	List any four factors that affect the quality of a system.
	(b).	How do coupling and cohesion measure the strength of Module Design?
	(c).	List the methods used by an analyst to gather data.
	(d).	How are MIS and DSS related ? How do they differ from each other ?
	(e).	Give an example of a situation which would demand greater interpersonal skills than technical skills from a systems analyst and vice-versa.
	(f).	What is prototyping ? How does it help in solving the major problem in building the information systems ?
2.	(a).	What are the roles of a systems analyst in the development of a software ?
	(b).	Describe the three types of feasibility studied in preliminary investigation.
	(c).	How can one define cost-benefit analysis ?
3.	(a).	What is meant by Context Level Data Flow Diagram ? Give the differences between Data Flow Diagram and Decision Table.
	(b).	ABC is a CD Rental Library System. To become a member, an application form is completed by the customer. The form is then submitted to the Rental Library System. The customer receives a membership card, each card with a unique membership number. Only a member is allowed to borrow a CD. The system collects the payment and transfers it to the Accounts office. The details of each member are stored in 'Member' data store. For each rented CD, the system maintains a separate data store, 'Rental', which contains details, CD number (unique), rented date, membership number of the customer who rented the CD, etc. The third data store is 'CD' which is the CD's inventory. The Rental Library System sends overdue notice to the members who have not returned the CD on due date. The system sends a management report to the management at the end of every month, which in return sends back the 'Action taken' report.
		Prepare a Context Diagram and Level 1 DFD for the above CD Library System.
	(c).	Distinguish between :
		(i) Opportunity and Sunk cost
		(ii). Direct and Indirect cost
		(iii). Fixed and Tangible cost
4.	(a).	List the various steps involved in the System Development Life Cycle (SDLC).
	(b).	Distinguish between Open and Closed system.
	(c).	What are differences between Verification and Validation (V & V) processes?
5.	(a).	List out various factors which are responsible for the quality of a system. Explain briefly the different levels of quality assurance.
	(b).	What are the different types of system maintenance and various special system tests? Explain them briefly.
	(c).	List out the different approaches for software evaluation. What are the different ways for financing the use of computers ?
6.	(a).	In your own words define the terms EDP, MIS, DSS, EIS and KBS. Why is the IT industry emerging as the dominant industry ?
	(b)	What is software piracy, and why is it so prevalent ? Explain various forms of software piracy seen around the world.