Bit 2112: System Analysis And Design Question Paper
Bit 2112: System Analysis And Design
Course:Bachelor Of Information Technology
Institution: Jomo Kenyatta University Of Agriculture And Technology question papers
Exam Year:2013
JOMO KENYATTA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY
UNIVERSITY EXAMINATIONS 2013/2014
EXAMINATION FOR THE DEGREE OF BACHELOR of INFORMATION TECHNOLOGY
BIT 2112: SYSTEM ANALYSIS AND DESIGN
DATE: AUGUST 2013 TIME: 3 HOURS
INSTRUCTIONS
-ANSWER QUESTION ONE (COMPULSORY) AND ANY THREE QUESTIONS.
QUESTION ONE
(a) Explain any THREE roles that a systems analysts needs to play during an information system development project. Explain each one briefly.
[5 marks]
(b) A software system implementation is not complete until the system has been thoroughly tested using unit and system testing. Name and explain TWO types of testing that need to be done after the software system has been implemented.
[4 marks]
(c) Explain any THREE disadvantages with the waterfall development methodology.
[6 marks]
(d) Describe the THREE structures used in structured English during process
specification and give an example for each. [3 marks]
(e) Differentiate between open systems and closed system. [2 marks]
(f) Explain the FOUR types of feasibility studies that can be conducted during system
Development. [4 marks]
QUESTION TWO
(a) During the design and development of a computerized information processing system, various types of documentation are produced. Explain TWO functions performed by some of these documentations. [4 marks]
(b) It is possible for systems and analysis involved in the introduction of new or upgraded computer systems to encounter resentment and opposition from existing employees. This may take many forms from outright opposition to active hostility toward the new system.
(i) Outline TWO reasons for employees to react in this manner. [2 marks]
(ii) Outline TWO measures that can be taken by the systems analyst to
alleviate his resistance. [2 marks]
(c) Describe any FIVE characteristic of a system. [5 marks]
(d) What do you mean by SDLC? Describe the different phases of SDLC?
[7 marks]
QUESTION THREE
(a) A flight to London costs $5,000 if the ticket is business class, and $3,000 if it is
economy. However, if you stay in London for more than one week, the economy
fare only costs $1,000.
Draw a decision table which represents these conditions and outcomes. Make
sure your table is minimal with respect to the number of rows and columns used.
[6 marks]
(b) List and explain any THREE categories of system maintenance and briefly explain
each. [6 marks]
(c) List and discuss the methods of system conversion explaining where they are
appropriate. [8 marks]
QUESTION FOUR
(a) NEXT Electron is an organization specializing in supplying electronic components. The success of their business depends on a rapid response to their customer’s orders and they are considering the feasibility of updating their current computer system. As a matter of policy the company has no outstanding orders. If parts cannot be delivered when ordered, the order/part order is cancelled and customers must reorder at a later date. Their ordering procedure is as follows:
Customer place orders by post/telephone/fax/mail. The orders are checked on receipt for the correct name, address and customer’s order number. If the order is from new customer, their name and address is added to the customer file and a new customer’s number is allocated. As the items ordered are given over the telephone or read from the customer’s order form, the stock file is queried to ascertain whether the correct amount of stock is available. If it is, then the items’ part number and description are automatically entered into the order shown on the VDU, and the order is then accepted and the invoice is printed together with a delivery note. When the invoice is printed, the system automatically makes an entry in the sales ledger file under the customer’s number.
As there is only one invoice per order, due to the “no partial order” policy, the invoice number is the same as the order number.
The delivery note then sent to the Despatch Department where the goods are picked and packed and the delivery notes are part of multipart invoice set. The invoice is sent to the customer by mail.
From the above description Draw a level one DFD. [10 marks]
The Kovac Mazda Dealership keeps track of their sales in a database which stores information on who (among its sales people) sold what model to whom. The database stores for each sales person her name, address and employee number, also a number of car sales so far this year and her salary. The database also stores for each customer her street address, city, postal code and phone number. For each car sold, the database stores the year, model and optional features included in the sale. Finally, for each sale the database stores the date of sale and the price.
Draw an entity relationship diagram which captures the information stored in the Kovac database. Identify clearly the keys and attributes for each entity and relationship in your diagram, as well as cardinalities.
QUESTION FIVE
(a) Define motivation as applied in leadership management [2 marks]
(b) Briefly highlight Maslow’s hierarchy of needs [8 marks]
(c) Hertzberg’s ‘hygiene’ theory classifies job conditions into two factors. Briefly highlight FIVE (5) maintenance factors. [10 marks]
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